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why after hydrogen exhaustion (of low mass stars) does the the core become isothermal. (according to my notes)
I mean, after exhaustion, its all helium, and it keeps on contracting right? So by the virial therem it must heat up (so by definition, it is NOT isothermal)! Indeed it must do so so as to trigger hydrogen shell burning.
Thanks:)
I mean, after exhaustion, its all helium, and it keeps on contracting right? So by the virial therem it must heat up (so by definition, it is NOT isothermal)! Indeed it must do so so as to trigger hydrogen shell burning.
Thanks:)