4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, Santa CruzUS948 papers
- Space Telescope Science InstituteUS207 papers
- Center for Astrophysics Harvard & SmithsonianUS153 papers
- Max Planck Institute for AstronomyDE138 papers
- University of ArizonaUS127 papers
- University of California, BerkeleyUS127 papers
- California Institute of TechnologyUS126 papers
- Carnegie ObservatoriesUS120 papers
- Carnegie Institution for ScienceUS113 papers
- Swinburne University of TechnologyAU107 papers
- European Southern ObservatoryCL103 papers
- Yale UniversityUS94 papers
60 papers · 1 filter
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 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…
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…
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…
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…
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…
Formation of Giant Planets by Concurrent Accretion of Solids and Gas inside an Anti-Cyclonic Vortex
Hubert Klahr, Peter Bodenheimer
We study the formation of a giant gas planet by the core--accretion gas--capture process, with numerical simulations, under the assumption that the planetary core forms in the cent…
A ~ 7.5 Earth-Mass Planet Orbiting the Nearby Star, GJ 876
E. J. Rivera, J. J. Lissauer, R. P. Butler +6
High precision, high cadence radial velocity monitoring over the past 8 years at the W. M. Keck Observatory reveals evidence for a third planet orbiting the nearby (4.69 pc) dM4 st…
Faint InfraRed Extragalactic Survey: Data and Source Catalogue of the MS1054-03 field
N. M. Forster Schreiber, M. Franx, I. Labbe +8
We present deep near-infrared Js, H, and Ks band imaging of a field around MS1054-03, a massive cluster at z=0.83. The observations were carried out with ISAAC at the ESO VLT as pa…
Identifying Very Metal-Rich Stars with Low-Resolution Spectra: Finding Planet-Search Targets
Sarah E. Robinson, Jay Strader, S. Mark Ammons +2
We present empirical calibrations that estimate stellar metallicity, effective temperature and surface gravity as a function of Lick/IDS indices. These calibrations have been deriv…
Adaptive Mesh Refinement Simulations of the Ionization Structure and Kinematics of Damped Ly Systems with Self-consistent Radiative Transfer
Alexei O. Razoumov, Michael L. Norman, Jason X. Prochaska +1
We use high resolution Eulerian hydrodynamics simulations to study kinematic properties of the low ionization species in damped Ly-alpha systems at redshift z=3. Our adaptive mesh…
The Galaxy Hosts and Large-Scale Environments of Short-Hard Gamma-Ray Bursts
J. X. Prochaska, J. S. Bloom, H. -W. Chen +8
The rapid succession of discovery of short--duration hard--spectrum GRBs has led to unprecedented insights into the energetics of the explosion and nature of the progenitors. Yet s…
Young Jupiters are Faint: New Models of the Early Evolution of Giant Planets
J. J. Fortney, M. S. Marley, O. Hubickyj +2
Here we show preliminary calculations of the cooling and contraction of a 2 MJ planet. These calculations, which are being extended to 1-10 MJ, differ from other published "cooling…
A Spectroscopic Study of the Ancient Milky Way: F- and G-Type Stars in the Third Data Release of the Sloan Digital Sky Survey
C. Allende Prieto, T. C. Beers, R. Wilhelm +4
(Abridged) We perform an analysis of spectra and photometry for 22,770 stars included in the third data release (DR3) of the SDSS. We measure radial velocities and, based on a mode…
A "Combination Nova" Outburst in Z Andromedae: Nuclear Shell Burning Triggered by a Disk Instability
J. L. Sokoloski, S. J. Kenyon, B. R. Espey +11
We describe observational evidence for a new kind of interacting-binary-star outburst that involves both an accretion instability and an increase in thermonuclear shell burning on…
Local Group Dwarf Elliptical Galaxies: I. Mapping the Dynamics of NGC 205 Beyond the Tidal Radius
M. Geha, P. Guhathakurta, R. M. Rich +1
NGC 205 is the nearest example of a dwarf elliptical (dE) galaxy and the prototype of this enigmatic galaxy class. Photometric evidence suggests that NGC 205, a close satellite of…