D
David R. Alves
Researcher at Columbia University
Publications - 74
Citations - 5357
David R. Alves is an academic researcher from Columbia University. The author has contributed to research in topics: Large Magellanic Cloud & Gravitational microlensing. The author has an hindex of 35, co-authored 74 publications receiving 5080 citations. Previous affiliations of David R. Alves include University of California, Davis & Lawrence Livermore National Laboratory.
Papers
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Journal ArticleDOI
The MACHO Project: Microlensing Results from 5.7 Years of Large Magellanic Cloud Observations
Charles Alcock,Charles Alcock,R. A. Allsman,David R. Alves,Tim Axelrod,Andrew C. Becker,David P. Bennett,David P. Bennett,Kem H Cook,Kem H Cook,N. Dalal,N. Dalal,Andrew J. Drake,Andrew J. Drake,Kenneth C. Freeman,Marla Geha,Kim Griest,Kim Griest,Matthew J. Lehner,S. L. Marshall,S. L. Marshall,Dante Minniti,C. A. Nelson,C. A. Nelson,Bruce A. Peterson,P. Popowski,M. R. Pratt,Peter J. Quinn,Christopher W. Stubbs,Christopher W. Stubbs,Christopher W. Stubbs,William J. Sutherland,A. B. Tomaney,T. Vandehei,T. Vandehei,Douglas L. Welch +35 more
TL;DR: In this paper, an analysis of 5.7 yr of photometry on 11.9 million stars in the Large Magellanic Cloud (LMC) reveals 13-17 microlensing events, which is significantly more than the 2-4 events expected from lensing by known stellar populations.
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New Understanding of Large Magellanic Cloud Structure, Dynamics, and Orbit from Carbon Star Kinematics
TL;DR: In this article, the authors derived general expressions for the velocity field that they fit to kinematic data for 1041 carbon stars, and showed that for known vt, all other model parameters are uniquely determined by the data.
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MACHO Project Limits on Black Hole Dark Matter in the 1-30 M☉ Range
Charles Alcock,Charles Alcock,R. A. Allsman,David R. Alves,Tim Axelrod,Andrew C. Becker,David P. Bennett,David P. Bennett,Kem H Cook,Kem H Cook,Neal Dalal,Andrew J. Drake,Andrew J. Drake,Kenneth C. Freeman,Marla Geha,Kim Griest,Kim Griest,Matthew J. Lehner,S. L. Marshall,S. L. Marshall,Dante Minniti,Dante Minniti,C. A. Nelson,C. A. Nelson,Bruce A. Peterson,P. Popowski,M. R. Pratt,Peter J. Quinn,Christopher W. Stubbs,William J. Sutherland,A. B. Tomaney,T. Vandehei,T. Vandehei,D. L. Welch +33 more
TL;DR: In this paper, a search for long-duration microlensing events toward the Large Magellanic Cloud (LMC) was conducted and the authors found none and therefore put limits on the contribution of high-mass objects to the Galactic dark matter.
Journal ArticleDOI
The Macho Project: 45 Candidate Microlensing Events from the First Year Galactic Bulge Data
Charles Alcock,Charles Alcock,R. A. Allsman,David R. Alves,T. S. Axelrod,T. S. Axelrod,David P. Bennett,David P. Bennett,Kem H Cook,Kem H Cook,Kenneth C. Freeman,Kim Griest,Kim Griest,J. A. Guern,J. A. Guern,Matthew J. Lehner,Matthew J. Lehner,S. L. Marshall,S. L. Marshall,H.-S. Park,Saul Perlmutter,Bruce A. Peterson,M. R. Pratt,M. R. Pratt,P. J. Quinn,A. W. Rodgers,Christopher W. Stubbs,Christopher W. Stubbs,Christopher W. Stubbs,William J. Sutherland +29 more
TL;DR: In this article, the authors reported the detection of 45 microlensing events in fields toward the Galactic bulge from the analysis of 24 fields containing 12.6 million stars observed for 190 days in 1993.
Journal ArticleDOI
K-band calibration of the red clump luminosity
TL;DR: The average near-infrared (K-band) luminosity of 238 Hipparcos red clump giants is derived and then used to measure the distance to the Galactic center as discussed by the authors.