Henyey track
The Henyey track is a path taken by pre-main-sequence stars with masses greater than 0.5 solar masses in the Hertzsprung–Russell diagram after the end of the Hayashi track. The astronomer Louis G. Henyey and his colleagues in the 1950s showed that the pre-main-sequence star can remain in radiative equilibrium throughout some period of its contraction to the main sequence.
The Henyey track is characterized by a slow collapse in near hydrostatic equilibrium, approaching the main sequence almost horizontally in the Hertzsprung–Russell diagram (i.e. the luminosity remains almost constant).[1]
See also
- Historical brightest stars
- List of brightest stars
- List of most luminous stars
- List of nearest bright stars
- List of Solar System objects in hydrostatic equilibrium
- Stellar evolution
- Stellar birthline
- Stellar isochrone
References
- ^ Fang, Herczeg, Rizzuto (2017). "Age Spreads and the Temperature Dependence of Age Estimates in Upper Sco". The Astrophysical Journal. 842 (2): 123. arXiv:1705.08612. Bibcode:2017ApJ...842..123F. doi:10.3847/1538-4357/aa74ca. S2CID 119087788.
- Henyey, L. G.; Lelevier, R.; Levée, R. D. (1955). "The Early Phases of Stellar Evolution". Publications of the Astronomical Society of the Pacific. 67 (396): 154–160. Bibcode:1955PASP...67..154H. doi:10.1086/126791.
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