0 citations
An Ultraviolet Imaging Telescope study of the globular cluster M79 (NGC 1904)
The Astrophysical Journal1992Vol. 395, pp. L17–L17
Citations Over Time
Robert Hill, J. K. Hill, V. La Parola, R. C. Bohlin, K. P. Cheng, P. Hintzen, R. W. O’Connell, Morton S. Roberts, Andrew M. Smith, Eric P. Smith, T. P. Stecher
Abstract
The Ultraviolet Imaging Telescope detects about 100 blue and extremely blue horizontal-branch (HB) stars in M79. Comparison of the ultraviolet color-magnitude diagram of M79 with stellar interior models shows that the distribution of total masses of the detected stars along with the zero-age HB includes the range of 0.495-0.62 solar mass, corresponding to envelope masses 0.01-0.13 solar mass. The total number of HB stars in M79 is estimated at 220 +/- 10. Also detected are two hot stars brighter than the horizontal branch by at least 1.5 mag at 1520 A. One of these stars (UIT 1) appears to be descending in luminosity along a pre-white dwarf track. The other (UIT 2) is most likely a post-HB star evolving toward the asymptotic giant branch.
Related Papers
- → Hot subdwarf stars in close-up view(2012)51 cited
- → The magnitude difference between the main sequence turn off and the red giant branch bump in Galactic globular clusters(2011)42 cited
- → On the red giant branch mass loss in 47 Tucanae: Constraints from the horizontal branch morphology(2016)31 cited
- → New Formation Channels of Hot Subdwarf Stars(2010)3 cited