The effective temperature and surface gravity of the UV-bright star Barnard 29 of Messier 13Comparison of optical region spectrophotometry, IUE low dispersion fluxes, and the H-gamma profile with the predictions of metal-poor model atmospheres were used to derive the photospheric parameters of the UV-bright star Barnard 29. These were found to be T(eff) - 20, 250 K, log g - 3.15 after the application of reddening corrections. A solar He/H ratio and the metallicity of Messier 13 were assumed.
Document ID
19890030212
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Adelman, Saul J. (NASA Goddard Space Flight Center Greenbelt, MD; The Citadel, Charleston, SC, United States)
Aikman, G. C. L. (Dominion Astrophysical Observatory Victoria, Canada)