5.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR397 papers
- Los Alamos National LaboratoryUS396 papers
- Columbia UniversityUS325 papers
- The University of TokyoJP311 papers
- Brookhaven National LaboratoryUS309 papers
- Vanderbilt UniversityUS293 papers
- University of MichiganUS291 papers
- University of Tennessee at KnoxvilleUS266 papers
- University of Illinois Urbana-ChampaignUS263 papers
- Pennsylvania State UniversityUS262 papers
- University of WashingtonUS252 papers
- Eötvös Loránd UniversityHU250 papers
45 papers · 2 filters
Stellar Populations in Bulges
Bhasker K. Moorthy, Jon A. Holtzman
We present line strengths in the bulges and inner disks of 38 galaxies in the local universe, including several galaxies whose bulges were previously identified as being disk-like…
Low State, Phase-Resolved IR Spectroscopy of VV Puppis
Steve B. Howell, Thomas E. Harrison, Ryan K. Campbell +2
We present phase-resolved low resolution and higher resolution -band spectroscopy of the polar VV Pup. All observations were obtained when VV Pup was in a low accretion st…
Constraining the Projected Radial Distribution of Galactic Satellites with the Sloan Digital Sky Survey
Jacqueline Chen, Andrey V. Kravtsov, Francisco Prada +5
We use the Sloan Digital Sky Survey (SDSS) spectroscopic sample to constrain the projected radial distribution of satellites around isolated ~ L* galaxies. We employ mock galaxy ca…
Constraining the Evolution of the Ionizing Background and the Epoch of Reionization with z ~ 6 Quasars II: A Sample of 19 Quasars
Xiaohui Fan, Michael A. Strauss, Robert H. Becker +7
We study the evolution of the ionization state of the IGM at the end of the reionization epoch using spectra of a sample of nineteen quasars at 5.74<z<6.42 discovered in the SDSS.…
The Nature of the Faint Chandra X-ray Sources in the Galactic Centre
A. J. Ruiter, K. Belczynski, T. E. Harrison
Recent Chandra observations have revealed a large population of faint X-ray point sources in the Galactic Centre. The observed population consists of about 2000 faint sources in th…
Compact Object Modeling with the StarTrack Population Synthesis Code
K. Belczynski, V. Kalogera, F. A. Rasio +5
We present a comprehensive description of the population synthesis code StarTrack. The original code has been significantly modified and updated. Special emphasis is placed here on…
SDSSJ103913.70+533029.7: A Super Star Cluster in the Outskirts of a Galaxy Merger
G. R. Knapp, C. A. Tremonti, C. M. Rockosi
We describe the serendipitous discovery in the spectroscopic data of the Sloan Digital Sky Survey of a star-like object, SDSSJ103913.70+533029.7, at a heliocentric radial velocity…
The White Dwarf Luminosity Function from SDSS Imaging Data
Hugh C. Harris, Jeffrey A. Munn, Mukremin Kilic +16
A sample of white dwarfs is selected from SDSS DR3 imaging data using their reduced proper motions, based on improved proper motions from SDSS plus USNO-B combined data. Numerous S…
The optical counterpart to the peculiar X-ray transient XTE J1739-302
Ignacio Negueruela, David M. Smith, Thomas E. Harrison +1
The weak X-ray transient XTE J1739-302, characterized by extremely short outbursts, has recently been identified with a reddened star. Here we present spectroscopy and photometry o…
XTE J1739-302 as a Supergiant Fast X-ray Transient
D. M. Smith, W. A. Heindl, C. B. Markwardt +4
XTE J1739-302 is a transient X-ray source with unusually short outbursts, lasting on the order of hours. Here we give a summary of X-ray observations we have made of this object in…
Why Are The Secondary Stars in Polars So Normal?
Thomas E. Harrison, Steve B. Howell, Paula Szkody +1
We have used NIRSPEC on Keck II to obtain -band spectroscopy of several magnetic cataclysmic variables. These data reveal that the secondary stars in these binary systems have s…
A Snapshot Survey for Gravitational Lenses Among z>=4.0 Quasars: II. Constraints on the 4.0<z<4.5 Quasar Population
Gordon T. Richards, Zoltan Haiman, Bartosz Pindor +7
We report on i-band snapshot observations of 157 Sloan Digital Sky Survey (SDSS) quasars at 4<z<5.4 using the Advanced Camera for Surveys on the Hubble Space Telescope (HST) to sea…
Is there Evidence for Flat Cores in the Halos of Dwarf Galaxies?: The Case of NGC 3109 and NGC 6822
Octavio Valenzuela, George Rhee, Anatoly Klypin +4
Two well studied dwarf galaxies -- NGC 3109 and NGC 6822 -- present some of the strongest observational support for a flat core at the center of galactic dark matter (DM) halos. We…
Candidate spectroscopic binaries in the Sloan Digital Sky Survey
D. Pourbaix, G. R. Knapp, P. Szkody +11
We have examined the radial velocity data for stars spectroscopically observed by the Sloan Digital Sky Survey (SDSS) more than once to investigate the incidence of spectroscopic b…
Close Binary Interactions of Intermediate-Mass Black Holes: Possible Ultra-Luminous X-ray Sources?
L. Blecha, N. Ivanova, V. Kalogera +3
While many observed ultra-luminous X-ray sources (ULXs, Lx > 10^39 erg s^-1) could be extragalactic X-ray binaries (XRBs) emitting close to the Eddington limit, the highest-luminos…
Spectral analyses of DO white dwarfs and PG1159 stars from the Sloan Digital Sky Survey
S. D. Huegelmeyer, S. Dreizler, K. Werner +3
We present a model atmosphere analysis of ten new DO white dwarfs and five new PG 1159 stars discovered in the Sloan Digital Sky Survey DR1, DR2 and DR3. This is a significant incr…
Eccentricities of Double Neutron Star Binaries
Catherine Mia Ihm, Vassiliki Kalogera, Krzysztof Belczynski
Recent pulsar surveys have increased the number of observed double neutron stars (DNS) in our galaxy enough so that observable trends in their properties are starting to emerge. In…
Initial Populations of Black Holes in Star Clusters
K. Belczynski, A. Sadowski, F. Rasio +1
Using an updated population synthesis code we study the formation and evolution of black holes (BHs) in young star clusters following a massive starburst. This study continues and…
The Fourth Data Release of the Sloan Digital Sky Survey
J. K. Adelman-McCarthy et al.
This paper describes the fourth data release of the Sloan Digital Sky Survey (SDSS), including all survey-quality data taken through June 2004. The data release includes five-band…
Spectroscopic Observations and Analysis of the Unusual Type Ia SN 1999ac
The Supernova Cosmology Project, :, G. Garavini +55
We present optical spectra of the peculiar Type Ia supernova (SN Ia) 1999ac. The data extend from -15 to +42 days with respect to B-band maximum and reveal an event that is unusual…
Upper Limits on a Stochastic Background of Gravitational Waves
LIGO Scientific Collaboration, B. Abbott
The Laser Interferometer Gravitational Wave Observatory (LIGO) has performed a third science run with much improved sensitivities of all three interferometers. We present an analys…
Photometric Accretion Signatures Near the Substellar Boundary
Peregrine M. McGehee, Andrew A. West, J. Allyn Smith +2
Multi-epoch imaging of the Orion equatorial region by the Sloan Digital Sky Survey has revealed that significant variability in the blue continuum persists into the late-M spectral…
The peculiar velocities of satellites of external disk galaxies
M. Azzaro, A. R. Zentner, F. Prada +1
We analyze the angular distribution and the orbital rotation directions of a sample of carefully-selected satellite galaxies extracted from the Sloan Digital Sky Survey (SDSS). We…
How far do they go? The outer structure of dark matter halos
F. Prada, A. A. Klypin, E. Simonneau +4
We study the density profiles of collapsed galaxy-size dark matter halos with masses 1e11-5e12 Msun focusing mostly on the halo outer regions from the formal virial radius Rvir up…