[mesa-users] accretion

[Dean Townsley]

Just to follow myself up with some more concrete things...


Just to say, my description of timescales is pretty much the same as in 
section 5.3 of the second MESA paper, sorry I didn't reference that.

Also, I see that figure 26 does show a problem at the depth where 
eps_grav is switched from the explicit lagragian form to the 
quasi-steady form.  Bill, just to be sure, is this the issue that you 
are trying to improve?  are there others?

A question: is the spot for the switch between the two eps_grav just at 
some constant multiple of the Mdot*dt?  (sorry I'm not familiar enough 
with the code to figure this out for myself yet.)  From reading the 
accompanying discussion, I am surprised that the point at which the form 
is changed and the point at the base of the newly accreted material are 
different.  Maybe I missed something?  Is there a stability reason for 
this or something like that?



Dean