[Mesa-users] Question about using RSP to model first-crossing Cepehids

[Radek Smolec]

Hi Jeremy,

You should be able to compute first crossing Cepheid models without
problems. The only difference is the growth rates will be smaller, so you
will need to compute more cycles to converge to full amplitude pulsation.

For type-II Cepheids, you should be able to compute reliable BL Her-type
models. See eg. very recent paper by Susmita Das:
https://arxiv.org/abs/2011.11626
Going to higher luminosities (W Vir, RV Tau) is difficult or not possible
(Miras) with RSP
Cheers,
Radek

czw., 3 gru 2020 o 20:13 Bill Paxton via Mesa-users <
mesa-users at lists.mesastar.org> napisał(a):

> study the 5M_cepheid_blue_loop test case.   try to make it work for higher
> masses.   Cepheids yes; MIRAs no.
>
> bill paxton
>
>
> > On Dec 3, 2020, at 11:08 AM, Jeremy Sakstein <sakstein at hawaii.edu>
> wrote:
> >
> > Hi everyone,
> >
> > I have a quick question about RSP's ability to model first-crossing
> Cepheid stars. By first-crossing I mean the brief period between the star
> exiting the main-sequence and ascending the Hayashi track.
> >
> > I wanted to ask how reliable/capeable RSP is of modelling these objects,
> and if there are any subtleties that I am likely not aware of that are not
> present for more luminous objects?
> >
> > I know the 2019 paper mentions difficulties modelling type-II Cepheids
> and MIRAs but I was wondering if anyone has any experience with these
> objects?
> >
> > Cheers,
> >
> > Jeremy
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>
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