Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, BerkeleyUS1.3k papers
- Goddard Space Flight CenterUS1.3k papers
- California Institute of TechnologyUS1.3k papers
- The Ohio State UniversityUS1.2k papers
- Centre National de la Recherche ScientifiqueFR1.1k papers
- Massachusetts Institute of TechnologyUS1.1k papers
- University of Maryland, College ParkUS1k papers
- Center for Astrophysics Harvard & SmithsonianUS975 papers
- Lawrence Berkeley National LaboratoryUS898 papers
- University of ChicagoUS889 papers
- University of WashingtonUS868 papers
- Yale UniversityUS848 papers
281 papers · 1 filter
Numerical Simulations of High Redshift Star Formation in Dwarf Galaxies
Konstantinos Tassis, Tom Abel, Greg L. Bryan +1
We present first results from three-dimensional hydrodynamic simulations of the high redshift formation of dwarf galaxies. The simulations use an Eulerian adaptive mesh refinement…
Luminosity Function of Morphologically Classified Galaxies in the Sloan Digital Sky Survey
Osamu Nakamura, Masataka Fukugita, Naoki Yasuda +5
The morphological dependence of the luminosity function is studied using a sample containing approximately 1500 bright galaxies classified into Hubble types by visual inspections f…
X-ray Spectroscopy and Variability of AGN Detected in the 2 Ms Chandra Deep Field-North Survey
F. E. Bauer, C. Vignali, D. M. Alexander +6
We investigate the nature of the faint X-ray source population through X-ray spectroscopy and variability analyses of 136 AGN detected in the 2 Ms Chandra Deep Field-North survey w…
Observation of the strange sea in the proton via inclusive Phi-meson production in neutral current deep inelastic scattering at HERA
ZEUS Collaboration
Inclusive phi-meson production in neutral current deep inelastic e+p scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 45 pb^{-1}. The p…
Measurement of subjet multiplicities in neutral current deep inelastic scattering at HERA and determination of
ZEUS Collaboration
The subjet multiplicity has been measured in neutral current e+p interactions at Q**2 > 125 GeV**2 with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb-1. Jets…
Probing Broad Absorption Line Quasar Outflows: X-ray Insights
S. C. Gallagher, W. N. Brandt, G. Chartas +2
Energetic outflows appear to occur in conjunction with active mass accretion onto supermassive black holes. These outflows are most readily observed in the approximately 10% of qua…
Coercive Field and Magnetization Deficit in Ga(1-x)Mn(x)As Epilayers
S. J. Potashnik, K. C. Ku, S. H. Chun +4
We have studied the field dependence of the magnetization in epilayers of the diluted magnetic semiconductor Ga(1-x)Mn(x)As for 0.0135 < x < 0.083. Measurements of the low temperat…
All Sky Doppler Extrasolar Planet Surveys with a Multi-object Dispersed Fixed-delay Interferometer
Jian Ge, Suvrath Mahadevan, Julian van Eyken +2
We propose to use a high throughput and high precision multi-object dispersed fixed-delay interferometer for all sky Doppler surveys for extrasolar planets. This instrument, a comb…
Giant frequency dependence of dynamic freezing in nanocrystalline ferromagnetic LaCo0.5Mn0.5O3
R. Mahendiran, Y. Briead, M. Hervieu +2
This paper is withdrawn now and soon will be replaced by a complete study on LaCo0.5-MgxMn0.5O3.
Radio Galaxies and the Acceleration of the Universe Beyond a Redshift of One
Ruth A. Daly
Radio galaxies provide a means to determine the coordinate distance,the luminosity distance, the dimensionless luminosity distance, or the angular size distance to sources with red…
The overdensities of galaxy environments as a function of luminosity and color
David W. Hogg, Michael R. Blanton, Daniel J. Eisenstein +9
We study the mean environments of galaxies in the Sloan Digital Sky Survey as a function of rest-frame luminosity and color. Overdensities in galaxy number are estimated in $8 h^{-…
Asymptotic properties of groups acting on complexes
Gregory C. Bell
We examine asymptotic dimension and property A for groups acting on complexes. In particular, we prove that the fundamental group of a finite, developable complex of groups will ha…
Average spectra of massive galaxies in the SDSS
Daniel J. Eisenstein, David W. Hogg, Masataka Fukugita +17
We combine Sloan Digital Sky Survey spectra of 22,000 luminous, red, bulge-dominated galaxies to get high S/N average spectra in the rest-frame optical and ultraviolet (2600A to 70…
Magnetars and pulsars: a missing link
Bing Zhang
There is growing evidence that soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are isolated neutron stars with superstrong magnetic fields, i.e., magnetars, mark…
Some recent developments in gamma-ray burst afterglow and prompt emission models
Bing Zhang, Peter Meszaros, Junfeng Wang
Extensive observational campaigns of afterglow hunting have greatly enriched our understanding of the gamma-ray burst (GRB) phenomenon. Efforts have been made recently to explore s…
Ion induced quark-gluon implosion
L. Frankfurt, M. Strikman
We investigate nuclear fragmentation in the central proton-nucleus and nucleus - nucleus collisions at the energies of LHC. We argue that within the semi-classical approximation be…
The superconducting gap of \QTR{em}{in situ} thin films by microwave surface impedance measurements
N. Hakim, C. Kusko, S. Sridhar +4
Precision measurements of the microwave surface resistance of in situ films directly reveal an exponential behavior of at low temperature indicating a ful…
High Energy Neutrinos from Gamma-Ray Bursts with Precursor Supernovae
Soebur Razzaque, Peter Meszaros, Eli Waxman
The high energy neutrino signature from proton-proton and photo-meson interactions in a supernova remnant shell ejected prior to a gamma-ray burst provides a test for the precursor…
The Spatial, Ionization, and Kinematic Conditions of the z=1.39 Damped Ly-alpha Absorber in Q0957+561 A,B
Chris Churchill, Rick Mellon, Jane Charlton +1
We examined the sizes of the absorption clouds in a z=1.3911 damped Ly-alpha absorber (DLA) in the double image lensed quasar Q0957+561 A,B (separation 135 pc at the absorber redsh…
The Crab Nebula: 3-dimensional Modeling
S. Shibata, H. Tomatsuri, M. Shimanuki +3
We construct an axisymmetric model for the Crab Nebula. The flow dyamics is based on the model by Kennel and Coroniti (1984), but we assume that the kinetic-energy-dominant wind is…
Collider Implications of Models with Extra Dimensions
C. Macesanu, C. D. McMullen, S. Nandi
We discuss the collider signals of large extra dimensions in which gravity as well as the SM particles propagate into the extra dimensions. These signals arise either from the prod…
Selection of Metal-poor Giant Stars Using the Sloan Digital Sky Survey Photometric System
A. Helmi, Z. Ivezic, F. Prada +10
We present a method for photometric selection of metal-poor halo giants from the imaging data of the Sloan Digital Sky Survey (SDSS). These stars are offset from the stellar locus…
X-Ray Emission from Multi-Phase Shock in the Large Magellanic Cloud Supernova Remnant N49
Sangwook Park, David N. Burrows, Gordon P. Garmire +3
The supernova remnant (SNR) N49 in the Large Magellanic Cloud has been observed with the Advanced CCD Imaging Spectrometer (ACIS) on board the {\it Chandra X-Ray Observatory}. The…
Gamma photometric redshifts for long gamma-ray bursts
Z. Bagoly, I. Csabai, A. Mészáros +4
It is known that the soft tail of the gamma-ray bursts' spectra show excesses from the exact power-law dependence. In this article we show that this departure can be detected in th…