H
Harvey B. Richer
Researcher at University of British Columbia
Publications - 72
Citations - 2813
Harvey B. Richer is an academic researcher from University of British Columbia. The author has contributed to research in topics: Globular cluster & Stars. The author has an hindex of 28, co-authored 72 publications receiving 2681 citations. Previous affiliations of Harvey B. Richer include Centre national de la recherche scientifique & University of Hawaii.
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Journal ArticleDOI
The initial-final mass relation : direct constraints at the low-mass end
Jasonjot S. Kalirai,Brad M. S. Hansen,Daniel D. Kelson,David B. Reitzel,R. Michael Rich,Harvey B. Richer +5 more
TL;DR: In this article, the authors present CFHT CFH12K photometric and Keck LRIS multi-object spectroscopic observations of 22 white dwarfs in two older open clusters, NGC 7789 and NGC 6819, and show that the observed general trend at higher masses continues down to low masses, with -->Minitial = 1.6 M? main-sequence stars forming -->Mfinal = 0.54 M? white dwarFS.
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The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters
TL;DR: In this paper, the centers of 65 Milky Way globular clusters were determined by fitting ellipses to the density distribution within the inner 2' of the cluster center, and averaging the centers.
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A Trio of New Local Group Galaxies with Extreme Properties
Alan W. McConnachie,Avon Huxor,Nicolas F. Martin,Mike Irwin,Scott C. Chapman,Gregory G. Fahlman,Annette M. N. Ferguson,Rodrigo A. Ibata,Geraint F. Lewis,Harvey B. Richer,Nial R. Tanvir +10 more
TL;DR: In this article, the authors reported the discovery of three new dwarf galaxies in the Local Group, including Andromeda XVIII, XIX, and XX, which have stellar populations typical of dwarf spheroidal (dSph) systems.
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The Masses of Population II White Dwarfs
Jason S. Kalirai,D. Saul Davis,Harvey B. Richer,Pierre Bergeron,Márcio Catelan,Márcio Catelan,Brad M. S. Hansen,R. Michael Rich +7 more
TL;DR: In this article, the properties of the white dwarfs near the tip of the cooling sequence in the nearest of the Milky Way globulars, M4.5, were characterized by presenting the first direct mass measurements.
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Stellar Evolution in NGC 6791: Mass Loss on the Red Giant Branch and the Formation of Low-Mass White Dwarfs* **
Jasonjot S. Kalirai,Pierre Bergeron,Brad M. S. Hansen,Daniel D. Kelson,David B. Reitzel,R. Michael Rich,Harvey B. Richer +6 more
TL;DR: In this paper, a detailed study of the properties (temperatures, gravities, and masses) of the NGC 6791 white dwarf population is presented, which provides direct empirical evidence that mass loss is much more efficient in high-metallicity environments and therefore may be critical in interpreting the ultraviolet upturn in elliptical galaxies.