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
11 papers · 2 filters
The SPLASH Survey: Internal Kinematics, Chemical Abundances, and Masses of the Andromeda I, II, III, VII, X, and XIV dSphs
Jason S. Kalirai, Rachael L. Beaton, Marla C. Geha +7
We present new Keck/DEIMOS spectroscopic observations of hundreds of individual stars along the sightline to Andromeda's first three discovered dwarf spheroidal galaxies (dSphs) -…
Pulsar Timing with the Parkes Radio Telescope for the Fermi Mission
P. Weltevrede, S. Johnston, R. N. Manchester +10
We report here on two years of timing of 168 pulsars using the Parkes radio telescope. The vast majority of these pulsars have spin-down luminosities in excess of 10^34 erg/s and a…
The SPLASH Survey: A Spectroscopic Analysis of the Metal-Poor, Low-Luminosity M31 dSph Satellite Andromeda X
Jason S. Kalirai, Daniel B. Zucker, Puragra Guhathakurta +6
Andromeda X (And X) is a newly discovered low-luminosity M31 dwarf spheroidal galaxy (dSph) found by Zucker et al. (2007) in the Sloan Digital Sky Survey (SDSS - York et al. 2000).…
Multi-Element Abundance Measurements from Medium-Resolution Spectra. I. The Sculptor Dwarf Spheroidal Galaxy
Evan N. Kirby, Puragra Guhathakurta, Michael Bolte +2
We present measurements of Fe, Mg, Si, Ca, and Ti abundances for 388 radial velocity member stars in the Sculptor dwarf spheroidal galaxy (dSph), a satellite of the Milky Way. This…
Millisecond Pulsar Ages: Implications of Binary Evolution and a Maximum Spin Limit
Bulent Kiziltan, Stephen E. Thorsett
In the absence of constraints from the binary companion or supernova remnant, the standard method for estimating pulsar ages is to infer an age from the rate of spin-down. While th…
Mass-to-Light Ratios for M31 Globular Clusters: Age-Dating and a Surprising Metallicity Trend
Jay Strader, Graeme Smith, Soeren Larsen +2
We have obtained velocity dispersions from Keck high-resolution integrated spectroscopy of ten M31 globular clusters (GCs), including three candidate intermediate-age GCs. We show…
CN Variations in High Metallicity Globular and Open Clusters
Sarah L. Martell, Graeme H. Smith
We present a comparison of CN bandstrength variations in the high-metallicity globular clusters NGC 6356 and NGC 6528 with those measured in the old open clusters NGC 188, NCG 2158…
Mixed Populations in Globular Clusters: Et Tu, 47 Tuc?
J. Anderson, G. Piotto, I. R. King +2
We exploit the large number of archival HST images of 47 Tuc to examine its subgiant branch (SGB) and main sequence (MS) for signs of multiple populations. In the cluster core, we…
Evidence for the disky origin of luminous Virgo dwarf ellipticals from the kinematics of their globular cluster systems
Michael A. Beasley, A. Javier Cenarro, Jay Strader +1
We report evidence for dynamically significant rotation in the globular cluster systems of two luminous Virgo dwarf ellipticals, VCC1261 and VCC1528. Including previous results for…
The M-sigma and M-L Relations in Galactic Bulges and Determinations of their Intrinsic Scatter
Kayhan Gultekin, Douglas O. Richstone, Karl Gebhardt +13
We derive improved versions of the relations between supermassive black hole mass (M_BH) and host-galaxy bulge velocity dispersion (sigma) and luminosity (L) (the M-sigma and M-L r…
A Quintet of Black Hole Mass Determinations
Kayhan Gultekin, Douglas O. Richstone, Karl Gebhardt +11
We report five new measurements of central black hole masses based on STIS and WFPC2 observations with the Hubble Space Telescope and on axisymmetric, three-integral, Schwarzschild…