The Hot End of Evolutionary Horizontal Branches

Details The Hot End of Evolutionary Horizontal Branches The Hot End of Evolutionary Horizontal Branches

1994-07-20

arxiv.org/abs/astro-ph/9407057v2

Astronomy and Astrophysics

Astrophysics

postscript file of 10 pages plus 1 tables,rep.1 5 figures will be added later as postscript file The tex file and the other tw

Scientific paper

10.1086/175780

In this paper we investigate the hot end of the HB, presenting evolutionary constraints concerning the CM diagram location and the gravity of hot HB stars. According to the adopted evolutionary scenario, we predict an upper limit for HB temperatures of about logTe = 4.45, remarkably cooler than previous estimates. We find that such a theoretical prescription appears in good agreement with available observational data concerning both stellar temperatures and gravities.

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