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A new upper limit to the local population II density.An upper limit to the local population II density is derived, in terms of the mass-luminosity ratio, on the basis of U, B, and V photometric observations of several thousand stars with V magnitudes between 12 and 18 in a region near the North Galactic Pole. The photographic and photoelectric photometry and the reduction procedures are discussed. Models of the density distribution and luminosity function of the population II stars are used to predict their distribution in color and apparent magnitude. The derived local density of population II is found to be significantly lower than previous estimates. Possible causes for this discrepancy are considered.
Document ID
19720050776
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Weistrop, D.
(Hale Observatories Pasadena, Calif., United States)
Date Acquired
August 6, 2013
Publication Date
June 1, 1972
Publication Information
Publication: Astronomical Journal
Volume: 77
Subject Category
Space Sciences
Accession Number
72A34442
Distribution Limits
Public
Copyright
Other

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