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
135 papers · 2 filters
ACS Observations of a Strongly Lensed Arc in a Field Elliptical
J. P. Blakeslee, K. C. Zekser, N. Benitez +15
We report the discovery of a strongly lensed arc system around a field elliptical galaxy in Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) images of a parallel fiel…
On the Surface Heating of Synchronously-Spinning Short-Period Jovian Planets
Andreas Burkert, Douglas Lin, Peter Bodenheimer +2
We consider the atmospheric flow on short-period extra-solar planets through two-dimensional numerical simulations of hydrodynamics with radiation transfer. One side is always expo…
On the C and N Abundances of 47 Tucanae Main Sequence Stars
Michael M. Briley, Daniel Harbeck, Graeme H. Smith +1
We report the results of an analysis of CN and CH band strengths among a large sample of 47 Tucanae main-sequence and turn-off stars presented earlier by Harbeck et al. The resulti…
Keck Spectroscopy and Imaging of Globular Clusters in the Lenticular Galaxy NGC 524
Michael A. Beasley, Duncan A. Forbes, Jean P. Brodie +1
We have obtained Keck LRIS imaging and spectra for 29 globular clusters associated with the lenticular galaxy NGC 524. Using the empirical calibration of Brodie & Huchra we find th…
The detailed Fundamental Plane of two high redshift clusters: MS 2053-04 at z=0.58 and MS 1054-03 at z=0.83
Stijn Wuyts, Pieter G. van Dokkum, Daniel D. Kelson +2
We study the fundamental plane relation in high redshift clusters using a sample of 26 galaxies in MS 2053-04 (z=0.583) and 22 galaxies in MS 1054-03 (z=0.83). The zeropoint and sc…
Star Formation and Feedback in Dwarf Galaxies
Shawfeng Dong, D. N. C. Lin, S. D. Murray
We examine the star formation history and stellar feedback effects of dwarf galaxies under the influence of extragalactic ultraviolet radiation. We consider the dynamical evolution…
A comprehensive set of elemental abundances in damped Ly-alpha systems: revealing the nature of these high-redshift galaxies
M. Dessauges-Zavadsky, F. Calura, J. X. Prochaska +2
By combining our UVES-VLT spectra of a sample of four damped Ly-alpha systems (DLAs) toward the quasars Q0100+13, Q1331+17, Q2231-00 and Q2343+12 with the existing HIRES-Keck spect…
Towards a Deterministic Model of Planetary Formation I: a Desert in the Mass and Semi Major Axis Distributions of Extra Solar Planets
S. Ida, D. N. C. Lin
We examine the accretion of cores of giant planets from planetesimals, gas accretion onto the cores, and their orbital migration. We adopt a working model for nascent protostellar…
Very Isolated Early-Type Galaxies
J. T. Stocke, B. A. Keeney, A. D. Lewis +2
We use the Karachentseva (1973) ``Catalogue of Very Isolated Galaxies'' to investigate a candidate list of >100 very isolated early-type galaxies. Broad-band imaging and low resolu…
The Chemical Composition Contrast between M3 and M13 Revisited: New Abundances for 28 Giant Stars in M3
Christopher Sneden, Robert P. Kraft, Puragra Guhathakurta +2
We report new chemical abundances of 23 bright red giants of the globular cluster M3, based on high-resolution spectra obtained with the Keck I telescope. Combining these data with…
Discovery of Globular Clusters in the Proto-Spiral NGC2915: Implications for Hierarchical Galaxy Evolution
G. R. Meurer, J. P. Blakeslee, M. Sirianni +30
We have discovered three globular clusters beyond the Holmberg radius in Hubble Space Telescope Advanced Camera for Surveys images of the gas-rich dark matter dominated blue compac…
Star Clusters in Virgo and Fornax Dwarf Irregular Galaxies
Anil Seth, Knut Olsen, Bryan Miller +2
We present the results of a search for clusters in dwarf irregular galaxies in the Virgo and Fornax Cluster using HST WFPC2 snapshot data. The galaxy sample includes 28 galaxies, 1…
Direct Numerical Simulations of Type Ia Supernovae Flames I: The Landau-Darrieus Instability
J. B. Bell, M. S. Day, C. A. Rendleman +2
Planar flames are intrinsically unstable in open domains due to the thermal expansion across the burning front--the Landau-Darrieus instability. This instability leads to wrinkling…
Limits on Very High Energy Emission from Gamma-Ray Bursts with the Milagro Observatory
The Milagro Collaboration, R. Atkins, W. Benbow +34
The Milagro telescope monitors the northern sky for 100 GeV to 100 TeV transient emission through continuous very high energy wide-field observations. The large effective area and…
A New Non-Parametric Approach to Galaxy Morphological Classification
Jennifer M. Lotz, Joel Primack, Piero Madau
We present two new non-parametric methods for quantifying galaxy morphology: the relative distribution of the galaxy pixel flux values (the Gini coefficient or G) and the second-or…
Evolution in the Colors of Lyman-Break Galaxies from Z~4 to Z~3
Casey Papovich, Mark Dickinson, Henry C. Ferguson +11
The integrated colors of distant galaxies provide a means for interpreting the properties of their stellar content. Here, we use rest-frame UV-to-optical colors to constrain the sp…
Revisiting the Globular Cluster System of the Merger Remnant Elliptical NGC 3610
Jay Strader, Jean P. Brodie, Duncan A. Forbes
We have obtained Keck spectra of six candidate globular clusters (GCs) in the dynamically young elliptical galaxy NGC 3610, supplementing our previous Keck spectra of eight confirm…
Morphology of Rising Hydrodynamic and Magneto-hydrodynamic Bubbles from Numerical Simulations
K. Robinson, L. J. Dursi, P. M. Ricker +11
Recent Chandra and XMM-Newton observations of galaxy cluster cooling flows have revealed X-ray emission voids of up to 30 kpc in size that have been identified with buoyant, magnet…
Obtaining Global Galaxy Metallicities Using Emission Line EWs
Chip Kobulnicky, Andrew Phillips
We develop a prescription for estimating the interstellar medium oxygen abundances of distant star-forming galaxies using the ratio EWR_{23} formed from the equivalent widths of th…
The DEEP Groth Strip Survey VII: The Metallicity of Field Galaxies at 0.26<z<0.82 and the Evolution of the Luminosity-Metallicity Relation
Henry A. Kobulnicky, Christopher N. A. Willmer, Benjamin J. Weiner +6
Using spectroscopic data from the Deep Extragalactic Evolutionary Probe (DEEP) Groth Strip survey (DGSS), we analyze the gas-phase oxygen abundances in the warm ionized medium for…
The MACHO Project Large Magellanic Cloud Variable Star Inventory. XIII. Fourier Parameters for the First Overtone RR Lyrae Variables and the LMC Distance
C. Alcock, D. R. Alves, T. S. Axelrod +21
Fourier coefficents have been derived for the and light curves of 785 overtone RR Lyrae variables in 16 MACHO fields near the bar of the LMC. The and coef…
Tidal dissipation in rotating giant planets
G. I. Ogilvie, D. N. C. Lin
[Abridged] Tides may play an important role in determining the observed distributions of mass, orbital period, and eccentricity of the extrasolar planets. In addition, tidal intera…
The Merging History of Massive Black Holes
M. Volonteri, F. Haardt, P. Madau +1
We investigate a hierarchical structure formation scenario describing the evolution of a Super Massive Black Holes (SMBHs) population. The seeds of the local SMBHs are assumed to b…
Detection of Intermediate-Period Transiting Planets with a Network of Small Telescopes: transitsearch.org
Scott Seagroves, Justin Harker, Gregory Laughlin +2
We describe a project (transitsearch.org) currently attempting to discover transiting intermediate-period planets orbiting bright parent stars, and we simulate that project's perfo…