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Posts by astro-ph
A comparison of galaxy peculiar velocities field with the PSCz gravity field– A hyper-parameter method
Monday, May 21st, 2012Tags: adequate model, galaxy, galaxy distribution, gravity field, ira, model data, mpc, parameter method, peculiar velocity, sampling, shapley concentration, statistical method, supercluster
Posted in Cosmology and Extragalactic, Galactic, New, astro-ph | No Comments
The darkness that shaped the void: dark energy and cosmic voids
Monday, May 21st, 2012Tags: bia, body simulation, cosmology, dark energy, dark matter distribution, darkness, ellipticity, evolution, galaxy distribution, galaxy redshift survey, halo, morphological properties, population, redshift distortions, shape, sigma, sparsity, watershed
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
The optically unbiased GRB host (TOUGH) survey. VI. Radio observations at z<1 and consistency with typical star-forming galaxies
Monday, May 21st, 2012Tags: radio observation
Posted in Cosmology and Extragalactic, High Energy, New, astro-ph | No Comments
How covariant is the galaxy luminosity function?
Monday, May 21st, 2012Tags: analytic model, bia, body simulation, bright galaxy, clf, cluster, cluster expansion, covariance matrix, density field, dependence, estimates, estimators, galaxy catalogue, galaxy luminosity function, mass function, millennium, sample variance, scale structure, three pieces
Posted in Cosmology and Extragalactic, Galactic, New, astro-ph | No Comments
Self-accelerating Massive Gravity: Exact solutions for any isotropic matter distribution [Cross-Listing]
Monday, May 21st, 2012Tags: arbitrary time, cosmological constant, dark energy, degrees of freedom, exact solution, graviton, massive gravity, matter distribution, matter fields, perturbation, sources of stress, symmetric distribution, time dependence
Posted in Cosmology and Extragalactic, Cross-Listings, astro-ph | No Comments
Physical properties of dense molecular gas in centres of Seyfert galaxies
Monday, May 21st, 2012Tags: AGN, channel separation, critical value, dense gas, direct evidence, dispersion, dynamical state, fwhm, hcn, kinematic, kinematic parameters, major axis, position angle, radius, resolution data, seyfert galaxy, smearing, star formation, starburst, velocity gradient
Posted in Cosmology and Extragalactic, Galactic, New, astro-ph | No Comments
The Correlated Formation Histories of Massive Galaxies and Their Dark Matter Halos
Monday, May 21st, 2012Tags: angular momentum, central galaxy, constraint, correlation, cosmos field, dark matter halo, formation history, independent source, large scale, massive galaxy, morphology, redshift range, scale environment, scales, simulation, star formation, stellar mass, stochastic process, x ray
Posted in Cosmology and Extragalactic, New, astro-ph | 1 Comment
X-ray variability of 104 active galactic nuclei. XMM-Newton power-spectrum density profiles
Monday, May 21st, 2012Tags: accretion, active galactic nuclei, black hole, correspondence, density, density profile, Newton, power spectra, power spectrum, ray binaries, scales, shape, uniform analysis, variability, x ray
Posted in Cosmology and Extragalactic, High Energy, New, astro-ph | No Comments
Galaxies in X-ray Groups II: A Weak Lensing Study of Halo Centering
Monday, May 21st, 2012Tags: bright galaxy, consequence, cosmos field, dark matter halo, evolution, galaxy group, halo, mass profiles, massive galaxy, plasma, ray emission, redshift, tracers, x ray
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
Discovery of bright z ~ 7 galaxies in the UltraVISTA survey
Monday, May 21st, 2012Tags: cfht, contamination, cosmos field, dwarf star, galaxy luminosity function, hst, infrared imaging, luminous galaxies, lyman, msun, number density, prime target, redshift, redshift galaxies, rest frame, spectroscopy, Spitzer, stellar mass, wavelength
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
A multi-wavelength investigation of RCW175: an HII region harboring spinning dust emission
Monday, May 21st, 2012Tags: aromatic hydrocarbon, dust emission, dust grains, emission mechanism, hii region, interstellar medium, kpc, microwave emission, molecular cloud, pivotal role, radiation field, radio continuum, spectral observation, star formation rate, stellar object, vicinity, wavelength
Posted in Galactic, New, astro-ph | No Comments
A reduction in the UHE neutrino flux due to neutrino spin precession
Monday, May 21st, 2012Tags: active galactic nuclei, astrophysical objects, gamma ray burst, intense magnetic field, magnetic moment, neutrino, transition, uhe
Posted in High Energy, New, astro-ph | No Comments
An Oxford SWIFT Integral Field Spectroscopy study of 14 early-type galaxies in the Coma cluster
Monday, May 21st, 2012Tags: absorption feature, band photometry, cluster core, coma cluster, comparable studies, field spectroscopy, fundamental plane, integral field, kinematic, nearby universe, new oxford, photometric data, residuals, rotators, selection criteria, spectroscopy study, triplet, type galaxy, velocity dispersion, virgo cluster
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
The universal density profile of the central region of dark matter haloes
Monday, May 21st, 2012Tags: body simulation, central core, cusp, dark matter, density profile, extent, initial condition, perturbation, structure formation
Posted in Cosmology and Extragalactic, Galactic, High Energy, New, astro-ph | No Comments
Modeling the Spatial Distribution of Neutron Stars in the Galaxy
Monday, May 21st, 2012Tags: correlation, galactic plane, gamma function, gravitational potential, initial distribution, initial velocity, monte carlo simulation, neutron star, orbit, progenitor, radial dependence, radial distribution, radial expansion, spatial distribution, stars in the galaxy, toru, velocities, velocity distribution, vertical distribution
Posted in High Energy, New, astro-ph | No Comments
AE Aquarii represents a new subclass of Cataclysmic Variables
Monday, May 21st, 2012Tags: accretion, aqr, binary system, cataclysmic variables, diffusion, dwarf surface, evolution, intermediate polars, magnetic field, magnetic moment, mass exchange, missing link, plasma, red dwarf, subclass, system component, transition, white dwarf
Posted in High Energy, New, astro-ph | No Comments
Collisional Penrose process near the horizon of extreme Kerr black holes
Monday, May 21st, 2012Tags: black hole, center of mass, collisional, collisions, cosmic accelerators, energetic particle, horizon, infinity, initial energy, kerr, mass energy, particle accelerator, penrose, rotational energy, suggestion
Posted in High Energy, New, astro-ph | No Comments
Spectral Analysis of the 13 keV Feature in XTE J1810-197: Implications for AXP Models
Monday, May 21st, 2012Tags: atmosphere, atomic emission, axp, coincidence, compact object, disk model, emission processes, fall back, keV, models, quark, rubidium, spectral analysis, spectrum, x ray
Posted in High Energy, New, astro-ph | No Comments
Monster black holes
Monday, May 21st, 2012Tags: black hole, galaxy, monster, monsters co, nearby universe, solar mass, spacecraft observations
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
Contributions to the cross shock electric field at supercritical perpendicular shocks: Impact of the pickup ions [Cross-Listing]
Monday, May 21st, 2012Tags: amplitude, density, evolution, gyro, ion dynamics, lorentz, particle, pickup ions, pis, preliminary results, ramp, reformation, shock, shock front, solar wind ions, stationary foot, striking point
Posted in Cross-Listings, High Energy, astro-ph | No Comments
Energy-dependent orbital modulation of X-rays and a constraint on emission of the jet in Cyg X-3
Monday, May 21st, 2012Tags: absorption, compton, constraint, continuum, cyg, gamma ray, increasing energy, inferior conjunction, light curves, modulation depth, optical depth, shape, soft x, spectra, spectral states, stellar wind, superior conjunction, unprecedented accuracy, x ray
Posted in High Energy, New, astro-ph | No Comments
Towards p-Adic Matter in the Universe [Cross-Listing]
Monday, May 21st, 2012Tags: adic, energy term, evolution of the universe, field solution, kinetic energy, lagrangian, non locality, scalar field, space time, string theory, string world, time dimension
Posted in Cosmology and Extragalactic, Cross-Listings, astro-ph | No Comments
On energetics of particle collisions near black holes: BSW effect versus Penrose process [Cross-Listing]
Monday, May 21st, 2012Tags: black hole, centre of mass, dependence, distant observer, energetics, energy particle, high energy, horizon, mass frame, particle collision, penrose, upper bound
Posted in Cross-Listings, High Energy, astro-ph | No Comments
Infrared observations of the recurrent nova T Pyxidis: ancient dust basks in the warm glow of the 2011 outburst
Monday, May 21st, 2012Tags: accumulation, herschel, infrared observation, infrared photometry, interstellar dust, nebulosity, outburst, pyx, recurrent nova, space observatory, space telescope, warm glow
Posted in New, Solar and Stellar, astro-ph | No Comments
Nitrogen line spectroscopy in O-stars — III. The earliest O-stars
Monday, May 21st, 2012Tags: classification scheme, dwarf, emission line, line profile, line ratio, lmc, low wind, luminosity class, massive star, model prediction, nitrogen content, o star, spectral type, supergiant, synthetic spectra, theoretical prediction, type star, wind parameters, wind strength
Posted in New, Solar and Stellar, astro-ph | No Comments
Data analysis recipes: Probability calculus for inference [Cross-Listing]
Monday, May 21st, 2012Tags: applications of probability, dimensional analysis, marginalized, probabilistic inference, probability, probability calculus, probability distribution function, recipes, valuable tool
Posted in Cross-Listings, Instrumentation and Methods, astro-ph | No Comments
Baroclinic Instability on Hot Extrasolar Planets
Monday, May 21st, 2012Tags: artificial viscosity, circulation model, circulation studies, curvature, cyclones and anticyclones, equator, extrasolar giant planet, extrasolar planet, flank, gcm simulations, initial value, linear analysis, mode analysis, primitive equations, rotation, scale variability, timescale, unstable mode, value calculations, weather systems
Posted in Earth and Planetary, New, astro-ph | No Comments
CfA4: Light Curves for 94 Type Ia Supernovae
Monday, May 21st, 2012Tags: accuracy level, bvr, comparison star, cramer, curve points, dark energy, departures, energy error, error budget, hubble flow, light curve, light curves, optical path, optical photometry, redshift range, sn ia, statistical sampling error, systematic error, systematic uncertainty, wavelength
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
On turbulent fragmentation and the origin of the stellar IMF
Monday, May 21st, 2012Tags: chabrier, characteristic temperature, clump, conversion efficiency, dynamic processes, gas temperature, initial mass function, interstellar medium, kroupa, last decade, lognormal distribution, mass function, power spectrum, random choice, redshift, spatial scale, star formation, stellar imf, stellar mass, universal nature
Posted in Galactic, New, astro-ph | No Comments
On the nature of dust clouds in the region towards M81 and NGC3077
Monday, May 21st, 2012Tags: cm 2, co line, column density, dust cloud, dust emission, galactic foreground, galactic origin, galaxy, herschel, iram, line emission, m81, m82, map, mip, molecular structure, physical parameter, radio telescope, spire, Spitzer
Posted in Galactic, New, astro-ph | No Comments
The Durham adaptive optics real-time controller: Capability and ELT suitability
Monday, May 21st, 2012Tags: adaptive optics system, astronomical adaptive optics, capability, hardware implementation, high performance, measurements, new feature, performance improvement, real time control, suitability, Telescope
Posted in Instrumentation and Methods, New, astro-ph | No Comments
Sunspot rotation, filament, and flare: The event on 2000 February 10
Monday, May 21st, 2012Tags: c class, chromosphere, class flare, corona, filament channel, filament eruption, halo, magnetic flux, mass ejection, photosphere, polarity, rapid increase, region ar, rotation rate, sunspot, twenty four hours, umbrae
Posted in New, Solar and Stellar, astro-ph | No Comments
IR-derived covering factors for a large sample of quasars from WISE-UKIDSS-SDSS
Monday, May 21st, 2012Tags: accretion disk, bia, dependant, estimates, fraction, micron, quasar, relationship, sdss, standard deviation, survey
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
The role of radiative losses in the late evolution of pulse-heated coronal loops/strands
Monday, May 21st, 2012Tags: curve, curves, evolution, hydrodynamic simulation, plasma, plasma density, radiative loss, rate increase, slope, solar corona, spectral line, spectral model, strand, temperature, temperature dependence, threshold value
Posted in New, Solar and Stellar, astro-ph | No Comments
The structure of phase space close to fixed points in a 4D symplectic map [Cross-Listing]
Monday, May 21st, 2012Tags: dynamical system, hamiltonian system, neighborhood, periodic orbit, phase space, representations, rotation method, surface
Posted in Cosmology and Extragalactic, Cross-Listings, astro-ph | No Comments
Remarks on the Cosmological Constant
Monday, May 21st, 2012Tags: cosmological constant, dark energy, einstein, general relativity, general theory of relativity, Lambda, mass energy, observational data, planck units, radius, theory of relativity, visible universe
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
Proton, Electron, and Ion Heating in the Fast Solar Wind from Nonlinear Coupling Between Alfvenic and Fast-Mode Turbulence
Monday, May 21st, 2012Tags: advection, coulomb, diffusion equation, energy input, energy transfer, frequency waves, heavy ion, interplanetary space, ion cyclotron resonance, ion populations, mhd turbulence, particle species, proton electron, situ measurement, slow mode, solar corona, solar wind, thermal equilibrium, velocity distribution, wave power
Posted in New, Solar and Stellar, astro-ph | No Comments
Impact cratering on Mercury: consequences for the spin evolution
Monday, May 21st, 2012Tags: asteroids, collisional, consequence, diameter, dissipation, early solar system, evolution, flyby, images, mariner 10, mercury, models, orbit, resonance, spin state, synchronous rotation, variation
Posted in Earth and Planetary, New, astro-ph | No Comments
Cosmic Flows surveys and CLUES simulations
Monday, May 21st, 2012Tags: cosmic flow, cosmology, definitive answer, deviations, dipole, expansion of the universe, fundamental discoveries, galaxy, galaxy distances, microwave background, reconstruction, resultant velocity, simulation, survey, synergy, systematic error, unsolved problem, velocity field
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
A note on the observational evidence for the existence of event horizons in astrophysical black hole candidates [Cross-Listing]
Monday, May 21st, 2012Tags: assumption, astrophysical observations, black hole, constraint, electromagnetic radiation, event horizon, existence, hole candidate, observation, observational evidence, universe today
Posted in Cross-Listings, High Energy, astro-ph | No Comments
Fermi Gamma Ray Line at 130 GeV from Axion-Mediated Dark Matter [Cross-Listing]
Monday, May 21st, 2012Tags: annihilation, anomaly, cross section, dark matter, Fermi, gamma ray, gev, interaction, interplay, mediation, photon line, scalar, singlet, symmetry
Posted in Cosmology and Extragalactic, Cross-Listings, astro-ph | No Comments
Testing some f(R,T) gravity models from energy conditions [Cross-Listing]
Monday, May 21st, 2012Tags: assumption, curvature, einstein, energy conditions, energy momentum tensor, expression, gravity model, hilbert, input parameter, momentum, satis, theory of gravity
Posted in Cosmology and Extragalactic, Cross-Listings, astro-ph | No Comments
A combined measurement of cosmic growth and expansion from clusters of galaxies, the CMB and galaxy clustering
Monday, May 21st, 2012Tags: chandra x ray, clusters of galaxies, cold dark matter, cosmic expansion, cosmic microwave background, digital sky survey, energy density, galaxy cluster, galaxy survey, general relativity, growth parameters, matter density, mean matter, microwave anisotropy probe, model parameter, ray observatory, sloan digital, systematic uncertainty, wilkinson microwave anisotropy, wilkinson microwave anisotropy probe
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
VLSS Redux: Software Improvements applied to the Very Large Array Low-frequency Sky Survey
Monday, May 21st, 2012Tags: accuracy, angular size, bia, bright source, data processing, fluctuation, low frequency, obit, peeling, radio frequency interference, resolution reference, sky survey, software improvements, source catalog, substantial improvement, survey area, technical improvement, very large array, windowing, zernike
Posted in Instrumentation and Methods, New, astro-ph | No Comments
Spectral and spatial variations of the diffuse gamma-ray background in the vicinity of the Galactic plane and possible nature of the feature at 130 GeV
Monday, May 21st, 2012Tags: confidence, dark matter, diffuse background, dips, excesses, features change, galactic center, galactic plane, gamma ray, gev, law component, shape, sky, smooth power, spatial variation, spectral feature, spectrum, vicinity
Posted in High Energy, New, astro-ph | No Comments
Neutrinos from WIMP annihilation in the Sun : Implications of a self-consistent model of the Milky Way’s dark matter halo [Replacement]
Monday, May 21st, 2012Tags: annihilation, consistent model, cross section, curve data, dark matter halo, finite size, frame work, low mass, Milky Way, neutrino, neutrino flux, null result, parameter space, proton, rotation curve, stringent restrictions, super kamiokande, wimp
Posted in Galactic, Replacements, astro-ph | No Comments
X-Ray And Optical Flux Ratio Anomalies In Quadruply Lensed Quasars. II. Mapping the Dark Matter Content in Elliptical Galaxies [Replacement]
Monday, May 21st, 2012Tags: anomaly, bayesian analysis, chandra observation, dark matter content, elliptical galaxy, ensembles, fraction, galaxy, impact parameter, kpc, lensed quasar, measurements, optical flux, quasar images, x ray
Posted in Cosmology and Extragalactic, High Energy, Replacements, astro-ph | No Comments
A new signature of primordial non-Gaussianities from the abundance of galaxy clusters [Replacement]
Monday, May 21st, 2012Tags: abundance, appearance, characterization, cluster counts, dark energy, density perturbations, deviations, discontinuity, early universe, energy equation, equation of state, evolution, galaxy cluster, inflationary scenarios, initial condition, physical processes, redshift, signature, statistical properties
Posted in Cosmology and Extragalactic, Replacements, astro-ph | No Comments
The spatial structure of mono-abundance sub-populations of the Milky Way disk [Replacement]
Monday, May 21st, 2012Tags: accretion, correlation, decomposition, elemental abundance, galactic disk, inevitable consequence, internal evolution, kinematic, kpc, Milky Way, number density, photometric data, population, radial direction, spatial structure, spectroscopic survey, stellar disk, stellar population, thin disk, vertical structure
Posted in Galactic, Replacements, astro-ph | No Comments
Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions [Replacement]
Monday, May 21st, 2012Tags: acceleration, astronomical data, cosmological constant, dark matter, discrepancy, galactic scale, galaxy, modified newtonian dynamics, motion, paradigm, phenomenology, relativistic theory, square root, successes, surface density, theoretical attempts, theoretical framework, theory of gravity, universal force, unseen mass
Posted in Cosmology and Extragalactic, Galactic, Replacements, astro-ph | No Comments
Disruption of a Proto-Planetary Disk by the Black Hole at the Milky Way Centre [Replacement]
Monday, May 21st, 2012Tags: evaporation, galactic centre, low mass, mass star, Milky Way, photo, planetary disk, planets, proto, schwarzschild radii, sgra, supermassive black hole, tidal debris, tidal disruption, young stars
Posted in Earth and Planetary, Galactic, Replacements, astro-ph | No Comments
Constraining mean-field models of the nuclear matter equation of state at low densities [Replacement]
Monday, May 21st, 2012Tags: astrophysical applications, correlation, coupling, degrees of freedom, dense nuclear matter, density, dependent properties, equation of state, expansion, field model, light nuclei, low density, meson, neutron, nucleon, phase shift, relativistic effects, saturation, veos, virial equation of state
Posted in Replacements, Solar and Stellar, astro-ph | No Comments
Neutrinos and the stars [Replacement]
Monday, May 21st, 2012Tags: energy loss, high density, low mass, mass particle, Measurement, measurements, neutrino, oscillation, sn 1987a, statistic, Sun
Posted in Replacements, Solar and Stellar, astro-ph | No Comments
Star formation in LINER host galaxies at z~0.3 [Replacement]
Monday, May 21st, 2012Tags: AGN, agns, alpha emission, dusty star, extinction, galex, herschel, host galaxy, main sequence, o star, orders of magnitude, pac, photometry, star formation rate, stellar mass, stellar population, stellar system, typical star, uv emission, uv source
Posted in Cosmology and Extragalactic, Replacements, astro-ph | No Comments
Constraining neutrino superluminality from searches for sterile neutrino decays [Replacement]
Monday, May 21st, 2012Tags: absence, cern, energy range, gev, opera, pair production, signature, sn1987a, sterile neutrino
Posted in High Energy, Replacements, astro-ph | No Comments
SN 2006oz: rise of a super-luminous supernova observed by the SDSS-II SN Survey [Replacement]
Monday, May 21st, 2012Tags: absolute magnitude, absolute peak, body functions, common property, deep imaging, explosion models, host galaxy, light curve, light curves, magnetar, maximum light, optical spectrum, peak luminosity, photosphere, radioactive decay, rest frame, rise time, sdss, starburst galaxy, u band
Posted in Replacements, Solar and Stellar, astro-ph | No Comments
Star formation in the early universe: beyond the tip of the iceberg [Replacement]
Monday, May 21st, 2012Tags: early universe, grbs, hubble space telescope, hubble space telescope imaging, space telescope imaging, star formation, tip of the iceberg
Posted in Cosmology and Extragalactic, Replacements, astro-ph | No Comments
Effective theories of single field inflation when heavy fields matter [Replacement]
Monday, May 21st, 2012Tags: boson, coupling, degrees of freedom, deviates, eft, field theory, formalism, inflation, invariance, low energy, perturbation, power spectrum, primordial power, scalar field, scenarios, signature, speed of sound, symmetry, trajectory, validity
Posted in Cosmology and Extragalactic, Replacements, astro-ph | No Comments
Acceleration of particles by black holes as a result of deceleration: ultimate manifestation of kinematic nature of BSW effect [Replacement]
Monday, May 21st, 2012Tags: acceleration, black hole, deceleration, horizon surface, manifestation, mass frame, massive particle, particle, repulsion
Posted in High Energy, Replacements, astro-ph | No Comments
The clustering of galaxies as a function of their photometrically-estimated atomic gas content [Replacement]
Monday, May 21st, 2012Tags: atomic gas, gas content, gradient, linear combination, mass density, mass fraction, nearby galaxy, parameter, stellar surface
Posted in Cosmology and Extragalactic, Replacements, astro-ph | No Comments
The survival of nuclei in jets associated with core-collapse supernovae [Replacement]
Monday, May 21st, 2012Tags: cocoon, core collapse supernovae, cosmic ray, gamma ray, high energy, jet parameters, jets, launch, lorentz, models, multi messenger, nickel, nuclei, propagation, signal, spallation, stellar material, survival
Posted in High Energy, Replacements, Solar and Stellar, astro-ph | No Comments
Innovative Demodulation Scheme for Coherent Detectors in CMB Experiments [Replacement]
Monday, May 21st, 2012Tags: cmb experiments, cosmic microwave background, high pass filter, modulation and demodulation, noise floor, numerical differentiation, polarization, signal, significant improvement, suppression, white noise
Posted in Instrumentation and Methods, Replacements, astro-ph | No Comments
Probing cluster dynamics in RXCJ1504.1-0248 via radial and two-dimensional gas and galaxy properties [Replacement]
Monday, May 21st, 2012Tags: calibration, centroid, cluster dynamics, cluster of galaxies, dimensional gas, galaxy properties, global property, high velocity, line of sight, mass distribution, mass fraction, nearby cluster, optical imaging, optical spectroscopy, pressure maps, reflex survey, stellar mass, substructure, x ray, xmm newton
Posted in Cosmology and Extragalactic, Galactic, Replacements, astro-ph | No Comments
The Nature of the Compton-thick X-ray Reprocessor in NGC 4945 [Replacement]
Monday, May 21st, 2012Tags: agns, assumption, Chandra, cm 2, column density, compton, continuum, eddington luminosity, Fermi, galaxy ngc, line emission, methodology, orders of magnitude, reflection model, restriction, shape, spectra, spectrum, variability, x ray
Posted in High Energy, Replacements, astro-ph | No Comments
Revisit of the Interaction between Holographic Dark Energy and Dark Matter [Replacement]
Monday, May 21st, 2012Tags: cmb data, confidence level, cosmic expansion, cosmological constraints, dark energy, dark matter, de sitter, decrement, energy flow, evolution, existence, general model, gravitational interaction, hde, increment, interaction terms, simple models
Posted in Cosmology and Extragalactic, Replacements, astro-ph | No Comments
Warm Gas in the Virgo Cluster: I. Distribution of Lya Absorbers [Replacement]
Monday, May 21st, 2012Tags: absorption, cluster impact, cm 2, cosmological simulations, galaxy, galaxy cluster, ghrs, impact parameter, outskirt, parameter range, probes, qso, stis, strength increase, substructure, systematic study, velocity range, vir, virgo cluster, x ray
Posted in Cosmology and Extragalactic, Replacements, astro-ph | No Comments
High energy gamma-ray emission from compact galactic sources in the context of observations with the next generation Cherenkov Telescope Arrays [Replacement]
Monday, May 21st, 2012Tags: compact object, cta, energetic particle, energy range, galactic sources, gamma ray emission, gev energy, high energy, hypothesis, observational result, order of magnitude, physical processes, ray astronomy, ray sources, telescope array, telescopes, tev energies, theoretical implications, time resolution, unexpected feature
Posted in High Energy, Replacements, astro-ph | No Comments
Planck Intermediate Results. IV. The XMM-Newton validation programme for new Planck clusters [Replacement]
Monday, May 21st, 2012Tags: ancillary data, bright source, cluster, cluster candidates, faint source, intermediate results, msun, planck, ras, redshift systems, rosat, signal to noise, signal to noise ratio, sky map, sky survey, source catalogue, spectroscopy, validation, x ray, xmm newton
Posted in Cosmology and Extragalactic, Replacements, astro-ph | No Comments
870 micron Imaging of a Transitional Disk in Upper Scorpius: Holdover from the Era of Giant Planet Formation? [Replacement]
Monday, May 21st, 2012Tags: accretion, binary companion, giant planet, giant planet formation, grains, holdover, images, inner cavity, jupiter masses, micron imaging, presence, solar mass star, spectral energy distribution, surface density, transition
Posted in Galactic, Replacements, astro-ph | No Comments
Galaxy mass, cluster-centric distance and secular evolution: their role in the evolution of galaxies in clusters in the last 10 Gyr [Replacement]
Monday, May 21st, 2012Tags: cessation, cluster, dependence, diagnosis, differential, differential evolution, epochs, fraction, galaxy, galaxy evolution, gyr, key role, photometry, r200, redshift, sfh, slope, star formation history, x ray
Posted in Cosmology and Extragalactic, Replacements, astro-ph | No Comments
Observing Black Holes: Quasi-Periodic Oscillations [Cross-Listing]
Monday, May 21st, 2012Tags: angular momentum, black hole, circular orbit, existence, frequency qpos, fundamental frequency, general relativity, gravity, high frequency, kerr, maxima, numerical analysis, observable effects, orbital frequency, periodic oscillation, qualitative agreement, spacetime geometry, stable orbit, twin peak
Posted in Cross-Listings, High Energy, astro-ph | No Comments
Secular Dynamical Anti-Friction in Galactic Nuclei
Sunday, May 20th, 2012Tags: body simulation, central star, cluster, eccentric orbit, friction, galactic nuclei, imbh, initial stage, migration rate, numerical experiment, orbital eccentricity, orbital motion, precession, sdaf, star cluster, stellar cluster, supermassive black hole, torque
Posted in Galactic, New, astro-ph | No Comments
Galaxy mass, cluster-centric distance and secular evolution: their role in the evolution of galaxies in clusters in the last 10 Gyr
Sunday, May 20th, 2012Tags: cessation, cluster, dependence, diagnosis, differential, differential evolution, epochs, fraction, galaxy, galaxy evolution, gyr, key role, photometry, r200, redshift, sfh, slope, star formation history, x ray
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
High-velocity stars in the cores of globular clusters: The illustrative case of NGC 2808
Sunday, May 20th, 2012Tags: cluster member, compact object, escape velocity, field spectroscopy, giant branch, giant phase, globular cluster, globular cluster ngc, high velocity, illustrative case, integral field, main sequence star, monte carlo simulation, numerical simulation, red giant, sigma c, spectroscopy data, velocities, velocity dispersion, velocity distribution
Posted in Galactic, New, astro-ph | No Comments
Asteroseismology of the open clusters NGC 6791, NGC 6811, and NGC 6819 from nineteen months of Kepler photometry
Sunday, May 20th, 2012Tags: 19 months, binaries, blue straggler, clump stars, correlation, dnu, eff, epsilon, giant branch stars, kepler, linewidth, nasa, open cluster, photometric data, photometry, red giant, separations, space telescope, stellar classification, stellar population
Posted in New, Solar and Stellar, astro-ph | No Comments
Probing ionizing radiation of L<~0.1L* star-forming galaxies at z>~3 with strong lensing
Sunday, May 20th, 2012Tags: advent, characterisation, continuum emission, cross section, fesc, fraction, galaxy, galaxy cluster, ionizing radiation, lyman, magnification, monte carlo simulation, observational capabilities, redshift 3, sigma, telescopes, u band
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
Search for cold gas in strong MgII absorbers at 0.5<z<1.5: nature and evolution of 21-cm absorbers
Sunday, May 20th, 2012Tags: cold gas
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
A New Population of High Redshift, Dusty Lyman-Alpha Emitters and Blobs Discovered by WISE
Sunday, May 20th, 2012Tags: alpha emitter, blob, lyman alpha, population
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
On the local dark matter density
Sunday, May 20th, 2012Tags: approximation, circular speed, cm 3, correct assumption, dark matter, estimates, kinematic, kpc, mass model, matter density, Measurement, order of magnitude, pc 3, radius, tracers, velocity curve
Posted in Cosmology and Extragalactic, Galactic, New, astro-ph | No Comments
Vortex and spiral instabilities at gap edges in three-dimensional self-gravitating disc-satellite simulations
Sunday, May 20th, 2012Tags: density enhancement, dependence, gap, gravity, instabilities, mach number, maxima, numerical simulation, orbital radius, perturbation, previous results, relative density, satellite simulations, several times, spiral arm, timescale, vertical motion, vertical structure, vortex, vortices
Posted in Earth and Planetary, New, astro-ph | No Comments
Resolved [CII] emission in a lensed quasar at z=4.4
Sunday, May 20th, 2012Tags: black hole, cii, compact region, companion disk, disk galaxy, galaxy, host galaxy, iram, kpc, lensed quasar, map, quasar images, quasar nucleus, receivers, redshift, rotation field, star formation, stellar medium, surface density, vicinity
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
The optically unbiased GRB host (TOUGH) survey. V. VLT/X-shooter emission-line redshifts for Swift GRBs at z~2
Sunday, May 20th, 2012Tags: aim, bia, column density, completeness, darkness, emission line, faint star, grbs, host galaxy, hosts, nir spectroscopy, optical afterglow, prototype, redshift, redshift galaxies, shooter, swift, x ray
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
Empirical Constraints of Super-Galactic Winds at z >= 0.5
Sunday, May 20th, 2012Tags: absorption feature, angle theta, clump, disk galaxy, doublet, energy input, galactic wind, hst image, impact parameter, kpc, minor axis, orientation angles, parameter space, public archive, redshift, relative motion, super star clusters, supernova explosion, thermal energy, velocity field
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
Synchrotron Spectral Curvature from 22 MHz to 23 GHz
Sunday, May 20th, 2012Tags: arcade, cosmic ray, curvature, delta beta, energy spectrum, frequency data, frequency spectrum, galaxy, independent measurement, law index, low frequency, models, octave, radio data, radio sky, radio spectrum, spectral index, survey, synchrotron emission
Posted in Galactic, New, astro-ph | No Comments
A Spitzer IRAC Measure of the Zodiacal Light
Sunday, May 20th, 2012Tags: accurate knowledge, background source, brightness level, cosmic background explorer, cosmic infrared background, dust cloud, dust disk, galactic astronomy, infrared array camera, infrared background experiment, instrument calibration, instrumental background, interplanetary dust, kelsall, light model, north ecliptic pole, percent discrepancy, sinusoidal variation, zodiacal light
Posted in Cosmology and Extragalactic, Earth and Planetary, New, astro-ph | No Comments
An Interface for the Virtual Observatory of the University of Guanajuato
Sunday, May 20th, 2012Tags: attempts, data tables, database managers, interface, php scripts, phpmyadmin, spectra, sql database, starlight, stellar population, synthesis, technical parameters, ufsc, university of guanajuato, virtual observatory, web front
Posted in Cosmology and Extragalactic, Instrumentation and Methods, New, astro-ph | No Comments
Cosmological solution of Machian gravity [Cross-Listing]
Sunday, May 20th, 2012Tags: alternate model, correct solution, cosmological model, cosmology, dark matter and dark energy, dimensional model, dimensional space, energy component, field equation, forms of matter, general theory of relativity, geometry, gravity model, mathematical terms, matter and energy, observational evidence, real matter, space time, standard model, theory of relativity
Posted in Cosmology and Extragalactic, Cross-Listings, astro-ph | No Comments
The sizes, masses and specific star-formation rates of massive galaxies at 1.3<z<1.5: strong evidence in favour of evolution via minor mergers
Sunday, May 20th, 2012Tags: massive galaxy, star formation rate
Posted in Cosmology and Extragalactic, New, astro-ph | No Comments
Does the Sun work as a nuclear fusion amplifier of planetary tidal forcing? A proposal for a physical mechanism based on the mass-luminosity relation
Sunday, May 20th, 2012Tags: amplification factor, classical physics, conversion factor, dynamo processes, fusion rate, gravitational potential energy, magnification factor, mercury and venus, nuclear fusion, orbital period, physical mechanism, solar activity, solar core, solar cycle, solar dynamo, solar luminosity, sun work, sunspot number, tidal energy, venus earth
Posted in New, Solar and Stellar, astro-ph | No Comments
Medium modification of the charged current neutrino opacity and its implications
Sunday, May 20th, 2012Tags: antineutrino, boltzmann equation, closer to one, collisional, cross section, driven wind, electron neutrino, interaction rate, kinematic, neutrino interaction, neutron star, nucleon, nucleosynthesis, opacity, particle energy, period of time, proto, proton, symmetry, vector
Posted in High Energy, New, astro-ph | No Comments
Age and helium content of the open cluster NGC 6791 from multiple eclipsing binary members. II. age dependencies and new insights
Sunday, May 20th, 2012Tags: accuracy and precision, binary star, cluster ngc, cluster stars, consistency check, eclipsing binary, gyr, helium content, helium mass, mass fraction, mass loss, model comparison, new insights, observational constraints, open cluster, stellar model, stellar structure, stellar system
Posted in New, Solar and Stellar, astro-ph | No Comments
GRB980923. A burst with a short duration high energy component
Sunday, May 20th, 2012Tags: burst, clear evidence, duration, egret, energy component, gamma ray burst, high energy, keV, lad, light curve, observation, presence, sim 2, spectral components, spectral index, spectrum, tasc, variability
Posted in High Energy, New, astro-ph | No Comments
Properties of dust in the Galactic center region probed by AKARI far-infrared spectral mapping – detection of a dust feature
Sunday, May 20th, 2012Tags: absorption, arches, cluster, dust component, dust continuum emission, fourier transform spectrometer, galactic center region, grains, graphite, intense radiation, interstellar dust, ionized gas, micron, spatial variation, spectra, spectrum, surveyor, temperature
Posted in Galactic, New, astro-ph | No Comments
Protostellar Accretion Flows Destabilized by Magnetic Flux Redistribution
Sunday, May 20th, 2012Tags: accretion, advection, central star, collapse, dense core, density region, field strength, heart of the problem, inflow, interchange instability, latter phase, low density, magnetic flux, molecular cloud, orders of magnitude, radii, realistic level, star formation, stellar field, three dimensions
Posted in New, Solar and Stellar, astro-ph | No Comments
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