Henrich, Louis R. ; Chandrasekhar, S. (1940) Stellar models with isothermal cores Astrophysical Journal, 94 . pp. 525-536. ISSN 0004-637X
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Official URL: http://adsabs.harvard.edu/abs/1941ApJ....94..525H
Related URL: http://dx.doi.org/10.1086/144358
Abstract
This paper is devoted to the study of stellar models with isothermal cores. Two types of such configurations have been studied: (I) models with isothermal cores and polytropic envelopes (n=3) and (2) models with isothermal cores and radiative point-source envelopes with a law of opacity κ=κoρT-3.5. The most important characteristic of these models is the existence of an upper limit to the fraction ν of the total mass which can be contained in the core. For models of type 2, νmax~35%. Also it appears that, as ν increases, the radius of the star first decreases to a minimum value and then increases. Further, the luminosity of the star is found to increase by about a factor 3 from the stage when it has no isothermal core to the stage when the core contains the maximum possible mass.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Astronomical Society. |
ID Code: | 70611 |
Deposited On: | 17 Nov 2011 14:17 |
Last Modified: | 18 May 2016 16:36 |
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