Stellar evolution at high mass including the effect of a stellar wind

Abstract

view Abstract Citations (100) References (52) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Stellar evolution at high mass including the effect of a stellar wind. Stothers, R. ; Chin, C. -W. Abstract The effect of a stellar wind on the evolution of stars in the mass range from 15 to 120 solar masses is investigated. All the stellar models are constructed with the use of Cox-Stewart opacities. Four possible cases of mass loss are considered: (1) no mass loss at all; (2) substantial mass loss from stars in all stages of evolution; (3) heavy mass loss from red supergiants only; and (4) sudden and very heavy mass loss from luminous yellow supergiants. The assumption of mass loss during the main-sequence phase of evolution is found to lead to a lowering of the luminosity and, unless the mass loss is extremely heavy, of the effective temperature as well. A comparison of the adopted mass-loss rates with observed rates suggests that stellar winds are probably not an important factor in the evolution of main-sequence stars and supergiants unless the initial masses are greater than about 30 solar masses. Publication: The Astrophysical Journal Pub Date: October 1979 DOI: 10.1086/157388 Bibcode: 1979ApJ...233..267S Keywords: Early Stars; Main Sequence Stars; Stellar Evolution; Stellar Mass Ejection; Stellar Winds; Abundance; Helium; Hydrogen; Schwarzschild Metric; Stellar Models; Stellar Structure; Supergiant Stars; Astrophysics; Mass Loss:Stellar Models; Massive Stars:Evolution; Stellar Evolution:Stellar Winds full text sources ADS |