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
107 papers · 2 filters
Gamma-Ray Bursts: The Central Engine
S. E. Woosley
A variety of arguments suggest that the most common form of gamma-ray bursts (GRBs), those longer than a few seconds, involve the formation of black holes in supernova-like events.…
Milagrito: a TeV air-shower array
The Milagro Collaboration, R. Atkins
Milagrito, a large, covered water-Cherenkov detector, was the world's first air-shower-particle detector sensitive to cosmic gamma rays below 1 TeV. It served as a prototype for th…
NICMOS Imaging of Infrared-Luminous Galaxies
N. Z. Scoville, A. S Evans, R. Thompson +6
We present near-infrared images obtained with the HST NICMOS camera for a sample of 9 luminous (LIGs: L_IR (8-1000 microns) >~ 10^11 L_sun) and 15 ultra-luminous (ULIGS: L_IR >~ 10…
Redshift-Distance Survey of Early-type Galaxies. I. Sample Selection, Properties and Completeness
L. N. da Costa, M. Bernardi, M. V. Alonso +5
This is the first in a series of papers describing the recently completed all-sky redshift-distance survey of nearby early-type galaxies (ENEAR) carried out for peculiar velocity a…
CFHT Adaptive Optics Observations of the Central Kinematics in M15
Karl Gebhardt, Carlton Pryor, R. D. O'Connell +2
We have used an Imaging Fabry-Perot Spectrophotometer with the Adaptive Optics Bonnette on the Canada-France-Hawaii Telescope to measure stellar radial velocities in the globular c…
The Tree-Particle-Mesh N-body Gravity Solver
Paul Bode, Jeremiah P. Ostriker, Guohong Xu
The Tree-Particle-Mesh (TPM) N-body algorithm couples the tree algorithm for directly computing forces on particles in an hierarchical grouping scheme with the extremely efficient…
Redshift-Distance Survey of Early-Type Galaxies. IV. Dipoles of the Velocity Field
L. N. da Costa, M. Bernardi, M. V. Alonso +5
We use the recently completed redshift-distance survey of nearby early-type galaxies (ENEAR) to measure the dipole component of the peculiar velocity field to a depth of cz ~ 6000…
Distance Dependence in the Solar Neighborhood Age-Metallicity Relation
D. R. Garnett, H. A. Kobulnicky
The age-metallicity relation for F and G dwarf stars in the solar neighborhood, based on the stellar metallicity data of Edvardsson et al. (1993), shows an apparent scatter that is…
Axisymmetric, 3-Integral Models of Galaxies: A Massive Black Hole in NGC3379
Karl Gebhardt, Douglas Richstone, John Kormendy +8
We fit axisymmetric 3-integral dynamical models to NGC3379 using the line-of-sight velocity distribution obtained from HST/FOS spectra of the galaxy center and ground-based long-sl…
Radial Color Gradient and Main Sequence Mass Segregation in M30 (NGC 7099)
Justin H. Howell, Puragra Guhathakurta, Amy Tan
It has long been known that the post-core-collapse globular cluster M30 has a bluer-inward color gradient, and recent work suggests that the central deficiency of bright red giants…
Rotational velocities of low-mass stars in the Pleiades and Hyades
Donald M. Terndrup, John R. Stauffer, Marc H. Pinsonneault +5
We have obtained high-resolution spectra of 89 M dwarf members of the Pleiades and Hyades and have derived radial velocities, H-alpha equivalent widths, and spectroscopic rotationa…
Six New Planets from the Keck Precision Velocity Survey
Steven S. Vogt, Geoffrey W. Marcy, R. Paul Butler +1
We report results of a search for planets around 500 main sequence stars using the Keck high resolution spectrometer which has provided Doppler precision of 3 m/s during the past 3…
The Butcher-Oemler Effect at Moderate Redshift
Anne J. Metevier, A. Kathy Romer, M. P. Ulmer
We present the results of Butcher-Oemler-style analysis of three moderate- redshift (0.1<z<0.2) clusters which have bimodal X-ray surface brightness profiles. We find that at least…
Geodetic Precession in PSR B1534+12
I. H. Stairs, S. E. Thorsett, J. H. Taylor +1
We present Arecibo observations of PSR B1534+12 which confirm previous suggestions that the pulse profile is evolving secularly. This effect is similar to that seen in PSR B1913+16…
Obtaining Galaxy Masses Using Stellar Absorption and [O II] Emission-Line Diagnostics in Late-Type Galaxies
Chip Kobulnicky, Karl Gebhardt
The [O II] lambda3727 emission lines and absorption features from stellar Balmer and Ca H&K lines are the most accessible kinematic diagnotics in galaxies at z~1. We investigate th…
A High Fraction of Mergers in the cluster MS1054-03 at z=0.83
M. Franx, P. G. van Dokkum, D. G. Fabricant +2
We used the Hubble Space Telescope to take a wide field, multicolor image of the high redshift cluster MS1054-03 at z=0.83. The Keck telescope was used to take 200 redshifts in the…
Theoretical Black Hole Mass Distributions
Chris L. Fryer, Vassiliki Kalogera
We derive the theoretical distribution function of black hole masses by studying the formation processes of black holes. We use the results of recent 2D simulations of core-collaps…
Binary Eclipsing Millisecond Pulsars: A Decade of Timing
David Nice, Zaven Arzoumanian, Stephen Thorsett
We present results of long-term timing of eclipsing binaries PSR B1744-24A and PSR B1957+20 at Arecibo, the VLA, and Green Bank. Both pulsars exhibit irregularities in pulsar rotat…
Hubble Space Telescope Observations of the Oldest Star Clusters in the LMC
J. A. Johnson, M. Bolte, P. B. Stetson +2
We present V, V-I color-magnitude diagrams (CMDs) for three old star clusters in the Large Magellanic Cloud (LMC): NGC 1466, NGC 2257 and Hodge 11. Our data extend about 3 magnitud…
M31 Globular Clusters: Colors and Metallicities
P. Barmby, J. P. Huchra, J. P. Brodie +3
We present a new catalog of photometric and spectroscopic data on M31 globular clusters. The catalog includes new optical and near-infrared photometry for a substantial fraction of…
The Evolution of Early-Type Galaxies in Distant Clusters I.: Surface Photometry and Structural Parameters for 53 Galaxies in the z=0.33 Cluster CL1358+62
Daniel D. Kelson, Garth D. Illingworth, Pieter G. van Dokkum +1
Using HST imaging of CL1358+62 (z=0.33) structural parameters are derived for 53 cluster members. We fit integrated r^{1/4}-laws to the integrated S.B. profiles, and fit two-dimens…
Mid and Far Infrared Surveys with ISO
David Elbaz
We present the results of the extragalactic surveys performed at 15 and 175 microns using the ISOCAM and ISOPHOT instruments on-board the Infrared Space Observatory (ISO). The numb…
Breaking the Disk/Halo Degeneracy with Gravitational Lensing
Ariyeh H. Maller, Luc Simard, Puragra Guhathakurta +4
The degeneracy between the disk and the dark matter contribution to galaxy rotation curves remains an important uncertainty in our understanding of disk galaxies. Here we discuss a…
Relativistic Jets from Collapsars
Miguel A. Aloy, Ewald Mueller, Jose M. Ibanez +2
Using a collapsar progenitor model of MacFadyen & Woosley we have simulated the propagation of an axisymmetric jet through a collapsing rotating massive star with the GENESIS multi…