Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.6k papers
- University of California, BerkeleyUS2.5k papers
- The Ohio State UniversityUS2.3k papers
- University of ArizonaUS2.1k papers
- Lawrence Berkeley National LaboratoryUS2.1k papers
- SLAC National Accelerator LaboratoryUS2k papers
- University of California, IrvineUS2k papers
- Yale UniversityUS1.9k papers
- University of Wisconsin–MadisonUS1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- McGill UniversityCA1.9k papers
- University of ChicagoUS1.9k papers
163 papers · 2 filters
On the 2:1 Orbital Resonance in the HD 82943 Planetary System
Man Hoi Lee, R. Paul Butler, Debra A. Fischer +2
We present an analysis of the HD 82943 planetary system based on a radial velocity data set that combines new measurements obtained with the Keck telescope and the CORALIE measurem…
Kinematics and Metallicity of M31 Red Giants: The Giant Southern Stream and Discovery of a Second Cold Component at R = 20 kpc
J. S. Kalirai, P. Guhathakurta, K. M. Gilbert +4
We present spectroscopic observations of red giant branch (RGB) stars in the Andromeda spiral galaxy (M31), acquired with the DEIMOS instrument on the Keck II 10-m telescope. The t…
GRB 050408: An Atypical Gamma-Ray Burst as a Probe of an Atypical Galactic Environment
R. J. Foley, D. A. Perley, D. Pooley +14
The bright GRB 050408 was localized by HETE-II near local midnight, enabling an impressive ground-based followup effort as well as space-based followup from Swift. The Swift data f…
The Mass Assembly History of Field Galaxies: Detection of an Evolving Mass Limit for Star Forming Galaxies
Kevin Bundy, Richard S. Ellis, Christopher J. Conselice +7
We characterize the mass-dependent evolution in a large sample of more than 8,000 galaxies using spectroscopic redshifts drawn from the DEEP2 Galaxy Redshift Survey in the range 0.…
On the Origin of [OII] Emission in Red Sequence and Post-starburst Galaxies
Renbin Yan, Jeffrey A. Newman, S. M. Faber +3
We investigate the emission-line properties of galaxies with red rest-frame colors using spectra from SDSS DR4. Emission lines are detected in more than half of the red galaxies. W…
The Dependence of Halo Clustering on Halo Formation History, Concentration, and Occupation
Risa H. Wechsler, Andrew R. Zentner, James S. Bullock +2
We investigate the dependence of dark matter halo clustering on halo formation time, density profile concentration, and subhalo occupation number, using high-resolution numerical s…
The DEEP2 Galaxy Redshift Survey: Clustering of Galaxies as a Function of Luminosity at z=1
Alison L. Coil, Jeffrey A. Newman, Michael C. Cooper +4
We measure the clustering of DEEP2 galaxies at z=1 as a function of luminosity on scales 0.1 Mpc/h to 20 Mpc/h. Drawing from a parent catalog of 25,000 galaxies at 0.7<z<1.3 in the…
High Metallicity, Photoionised Gas in Intergalactic Large-Scale Filaments
Bastien Aracil, Todd M. Tripp, David V. Bowen +3
We present high-resolution UV spectra of absorption-line systems toward the low-z QSO HS0624+6907 (z=0.3700). Coupled with spectroscopic galaxy redshifts, we find that many of thes…
Deep Photometry of Andromeda Reveals Striking Similarities in the Tidal Stream and Spheroid Populations
Thomas M. Brown, Ed Smith, Puragra Guhathakurta +5
We present a color-magnitude diagram (CMD) for a field in the giant tidal stream of the Andromeda galaxy (M31). These observations, taken with the Advanced Camera for Surveys on th…
Angular Momentum Transport by Gravity Waves in the Solar Interior
Tamara M. Rogers, Gary A. Glatzmaier
We present self-consistent numerical simulations of the sun's convection zone and radiative interior using a two-dimensional model of its equatorial plane. The background reference…
An Overdensity of Galaxies near the Most Distant Radio-Loud Quasar
W. Zheng, R. Overzier, R. J. Bouwens +41
A five square arcminute region around the luminous radio-loud quasar SDSS J0836+0054 (z=5.8) hosts a wealth of associated galaxies, characterized by very red (1.3 < i_775 - z_{850}…
Cosmic rays, lithium abundance and excess entropy in galaxy clusters
Biman B. Nath, Piero Madau, Joseph Silk
We consider the production of Li in spallation reactions by cosmic rays in order to explain the observed abundance in halo metal-poor stars. We show that heating of ambient gas…
The Evolution of Rest-Frame K-band Properties of Early-Type Galaxies from z=1 to the Present
A. van der Wel, M. Franx, P. G. van Dokkum +3
We measure the evolution of the rest-frame K-band Fundamental Plane from z=1 to the present by using IRAC imaging of a sample of early-type galaxies in the Chandra Deep Field-South…
Measurement of the Spatial Cross-Correlation Function of Damped Lyman Alpha Systems and Lyman Break Galaxies
J. Cooke, A. M. Wolfe, E. Gawiser +1
We present the first spectroscopic measurement of the spatial cross-correlation function between damped Lyman alpha systems (DLAs) and Lyman break galaxies (LBGs). We obtained deep…
Gemini/GMOS Spectra of Globular Clusters in the Leo Group Elliptical NGC 3379
Michael Pierce, Michael A. Beasley, Duncan A. Forbes +8
We have obtained Gemini/GMOS spectra for 22 GCs associated with NGC 3379. We derive ages, metallicities and alpha-element abundance ratios from simple stellar population models usi…
Mid-Infrared Emission from Elliptical Galaxies: Sensitivity to Stellar Age
Pasquale Temi, Fabrizio Brighenti, William G. Mathews
Mid-infrared observations (3.6 - 24 microns) of normal giant elliptical galaxies with the Spitzer space telescope are consistent with pure populations of very old stars with no evi…
Millihertz Quasi-Periodic Oscillations from Marginally Stable Nuclear Burning on an Accreting Neutron Star
Alexander Heger, Andrew Cumming, Stanford E. Woosley
We investigate marginally stable nuclear burning on the surface of accreting neutron stars as an explanation for the mHz quasi-periodic oscillations (QPOs) observed from three low…
Nucleosynthesis in Early Supernova Winds II: The Role of Neutrinos
J. Pruet, R. D. Hoffman, S. E. Woosley +2
One of the outstanding unsolved riddles of nuclear astrophysics is the origin of the so called ``p-process'' nuclei from A = 92 to 126. Both the lighter and heavier p-process nucle…
Baryonically Closed Galaxy Groups
W. G. Mathews, A. Faltenbacher, F. Brighenti +1
Elliptical galaxies and their groups having the largest L_x/L_B lie close to the locus in the L_x,L_B diagram expected for closed systems with baryon fractions equal to the cosmic…
Heating Cooling Flows with Weak Shock Waves
W. G. Mathews, A. Faltenbacher, F. Brighenti
The discovery of extended, approximately spherical weak shock waves in the hot intercluster gas in Perseus and Virgo has precipitated the notion that these waves may be the primary…
AGN Feedback Causes Downsizing
Evan Scannapieco, Joseph Silk, Rychard Bouwens
We study the impact of outflows driven by active galactic nuclei (AGN) on galaxy formation. Outflows move into the surrounding intergalactic medium (IGM) and heat it sufficiently t…
Supergiant Fast X-ray Transients: A new class of high mass X-ray binaries unveiled by INTEGRAL
Ignacio Negueruela, David M. Smith, Pablo Reig +2
INTEGRAL monitoring of the Galactic Plane is revealing a growing number of recurrent X-ray transients, characterised by short outbursts with very fast rise times (~ tens of minutes…
Dimensionless constants, cosmology and other dark matters
Max Tegmark, Anthony Aguirre, Martin J Rees +1
We identify 31 dimensionless physical constants required by particle physics and cosmology, and emphasize that both microphysical constraints and selection effects might help eluci…
A new comprehensive set of elemental abundances in DLAs - II. Data analysis and chemical variation studies
M. Dessauges-Zavadsky, J. X. Prochaska, S. D'Odorico +2
We present new elemental abundance studies of seven damped Lyman-alpha systems (DLAs). Together with the four DLAs analyzed in Dessauges-Zavadsky et al. (2004), we have a sample of…