Margaret J. Geller
Smithsonian Astrophysical Observatory
438 Papers
5.3K Citations
Margaret J. Geller is an academic researcher from Smithsonian Astrophysical Observatory. The author has contributed to research in topics: Galaxy & Redshift. The author has an hindex of 86, co-authored 424 publications. Previous affiliations of Margaret J. Geller include Harvard University & Smithsonian Institution.
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Papers
THE ORIGIN OF HVS17, AN UNBOUND MAIN SEQUENCE B STAR AT 50 kpc
TL;DR: In this article, Keck Echellette Spectrograph and Imager spectroscopy of a B-type star traveling with a Galactic rest frame radial velocity of +445 km s^(−1) in the outer halo of the Milky Way is analyzed.
Measuring Galaxy Velocity Dispersions with Hectospec
Daniel G. Fabricant,Igor Chilingarian,Ho Seong Hwang,Michael J. Kurtz,Margaret J. Geller,Ian P. Del’Antonio,Kenneth J. Rines +6 more
TL;DR: In this paper, a robust technique based on the ULySS IDL code for measuring velocity dispersions of galaxies observed with the MMT's fiber-fed spectrograph, Hectospec, is described.
The Coevolution of Massive Quiescent Galaxies and Their Dark Matter Halos over the Last 6 Billion Years
TL;DR: In this paper, the authors investigate the growth of massive quiescent galaxies at 0.6-approximation of the Sloan Digital Sky Survey and the Smithsonian Hectospec Lensing Survey.
The local mean mass density of the universe - New methods for studying galaxy clustering
TL;DR: In this paper, a catalog of galaxy redshifts nearly complete to a limiting blue magnitude of 13.0 and covering the entire sky was analyzed and the authors obtained estimates of the galaxy luminosity function and of the local mean mass density.