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
27 papers · 2 filters
The Seventh Data Release of the Sloan Digital Sky Survey
K. Abazajian
This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDS…
The dependence of HII region properties on global and local surface brightness within galaxy discs
J. F. Helmboldt, R. A. M. Walterbos, G. D. Bothun +2
Using B, R, and H-alpha images of roughly equal-sized samples of low surface brightness (LSB) and high surface brightness (HSB) galaxies (~40 galaxies apiece), we have explored the…
New Observations and a Possible Detection of Parameter Variations in the Transits of Gliese 436b
Jeffrey L. Coughlin, Guy S. Stringfellow, Andrew C. Becker +3
We present ground-based observations of the transiting Neptune-mass planet Gl 436b obtained with the 3.5-meter telescope at Apache Point Observatory and other supporting telescopes…
The ACS Nearby Galaxy Survey Treasury I. The Star Formation History of the M81 Outer Disk
Benjamin F. Williams, Julianne J. Dalcanton, Anil C. Seth +16
The ACS Nearby Galaxy Survey Treasury (ANGST) is a large Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) treasury program to obtain resolved stellar photometry for a…
The ACS Nearby Galaxy Survey Treasury II. Young Stars and their Relation to Halpha and UV Emission Timescales in the M81 Outer Disk
Stephanie M. Gogarten, Julianne J. Dalcanton, Benjamin F. Williams +11
We have obtained resolved stellar photometry from Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) observations of a field in the outer disk of M81 as part of the ACS…
A Dynamical Classification of the Cosmic Web
J. E. Forero-Romero, Y. Hoffman, S. Gottloeber +2
A dynamical classification of the cosmic web is proposed. The large scale environment is classified into four web types: voids, sheets, filaments and knots. The classification is b…
APOGEE: The Apache Point Observatory Galactic Evolution Experiment
C. Allende Prieto, S. R. Majewski, R. Schiavon +8
APOGEE is a large-scale, NIR, high-resolution (R~20,000) spectroscopic survey of Galactic stars. It is one of the four experiments in SDSS-III. Because APOGEE will observe in the H…
Dynamics of barred galaxies: effects of disk height
A. Klypin, O. Valenzuela, P. Colin +1
We study dynamics of bars in models of disk galaxies embeded in realistic dark matter halos. We find that disk thickness plays an important, if not dominant, role in the evolution…
The Luminosity and Mass Functions of Low-Mass Stars in the Galactic Disk: I. The Calibration Region
Kevin R. Covey, Suzanne L. Hawley, John J. Bochanski +6
We present measurements of the luminosity and mass functions of low-mass stars constructed from a catalog of matched Sloan Digital Sky Survey (SDSS) and 2 Micron All Sky Survey (2M…
Cyclotron Modeling Phase-Resolved Infrared Spectroscopy of Polars III: AM Herculis and ST Leo Minoris
Ryan K. Campbell, Thomas E. Harrison, Stella Kafka
We present phase-resolved low resolution infrared spectra of AM Her and ST LMi, two low-field polars that we observed with SPEX on the IRTF. Optical/NIR lightcurves are also publis…
Delving Deeper into the Tumultuous Lives of Galactic Dwarfs: Modeling Star Formation Histories
Chris Orban, Oleg Y. Gnedin, Daniel R. Weisz +3
The paucity of observed dwarf galaxies in the Local Group relative to the abundance of predicted dark matter halos remains one of the greatest puzzles of the LCDM paradigm. Solving…
The emptiness of voids: yet another over-abundance problem for the LCDM model
A. Tikhonov, A. Klypin
We study the luminosity function, the peculiar velocities, and the sizes of voids in the Local Volume (LV) in observational samples of galaxies which contain galaxies down to MB=-1…
The most massive progenitors of neutron stars: CXO J164710.2-455216
K. Belczynski, R. Taam
The evolution leading to the formation of a neutron star in the very young Westerlund 1 star cluster is investigated. The turnoff mass has been estimated to be 35 Msun, indicating…
GALEX, Optical and IR Light Curves of MQ Dra: UV Excesses at Low Accretion Rates
Paula Szkody, Albert P. Linnell, Ryan K. Campbell +5
Ultraviolet light curves constructed from NUV and FUV detectors on GALEX reveal large amplitude variations during the orbital period of the Low Accretion Rate Polar MQ Dra (SDSSJ15…
Revised bolometric corrections and interstellar extinction coefficients for the ACS and WFPC2 photometric systems
L. Girardi, J. Dalcanton, B. Williams +8
We present extensive tables of bolometric corrections and interstellar extinction coefficients for the WFPC2 and ACS (both WFC and HRC) photometric systems. They are derived from s…
Toward a halo mass function for precision cosmology: the limits of universality
Jeremy L Tinker, Andrey V Kravtsov, Anatoly Klypin +5
We measure the mass function of dark matter halos in a large set of collisionless cosmological simulations of flat LCDM cosmology and investigate its evolution at z<~2. Halos are i…
Current star formation in early-type galaxies and the K+A phenomenon
J. F. Helmboldt, R. A. M. Walterbos, T. Goto
We present the results of an effort to identify and study a sample of the likely progenitors of elliptical (E) and lenticular (S0) K+A galaxies. To achieve this, we have searched a…
First-Year Spectroscopy for the SDSS-II Supernova Survey
Chen Zheng, Roger W. Romani, Masao Sako +77
This paper presents spectroscopy of supernovae discovered in the first season of the Sloan Digital Sky Survey-II Supernova Survey. This program searches for and measures multi-band…
Two More Candidate AM Canum Venaticorum (AM CVn) Binaries from the Sloan Digital Sky Survey
S. F. Anderson, A. C. Becker, D. Haggard +18
AM CVn systems are a select group of ultracompact binaries with the shortest orbital periods of any known binary subclass; mass-transfer is likely from a low-mass (partially-)degen…
The distribution function of dark matter in massive haloes
Radoslaw Wojtak, Ewa L. Lokas, Gary A. Mamon +3
We study the distribution function (DF) of dark matter particles in haloes of mass range 10^{14}--10^{15}\Msun. In the numerical part of this work we measure the DF for a sample of…
The Pre-Main-Sequence Eclipsing Binary ASAS J052821+0338.5
H. C. Stempels, L. Hebb, K. G. Stassun +4
In this paper we present the first results of a detailed spectroscopic and photometric analysis of the V = 11.7m eclipsing binary ASAS J052821+0338.5. With the FIES spectrograph at…
Cataclysmic Variables in Globular Clusters, the Galactic Center, and Local Space
Craig O. Heinke, Ashley J. Ruiter, Michael P. Muno +1
We compare the X-ray spectra and luminosities, in the 2-8 keV band, of known and suspected cataclysmic variables (CVs) in different environments, assessing the nature of these sour…
Far Ultraviolet Spectral Analysis of the Prototype Nova-Like Variable VY Sculptoris from the High State to the Low State
Ryan T. Hamilton, Edward M. Sion
The prototype nova-like variable VY Sculptoris was observed by the IUE during four different optical brightness states of the system. The FUV flux level from the highest state to t…
CLOUDS search for variability in brown dwarf atmospheres
B. Goldman, M. C. Cushing, M. S. Marley +21
Context: L-type ultra-cool dwarfs and brown dwarfs have cloudy atmospheres that could host weather-like phenomena. The detection of photometric or spectral variability would provid…