The GYRE Forums

Hi Rich, 1, Which dependent variables and which set of ODE's do you use for non-adiabatic modes please? For example, (24.1) to (24.6) in Unno's are one choice of dependent variables, and equations (24.7) to (24.12) in Unno's are one choice of ODE's. The reason I like to ask this question is explaine...

Hi Rich and gyre users, In one nonadiabatic calculations of g modes of a DA white dwarf, I find there exists an adiabatic mode with radial node number = -17, but the nonadiabatic modes do not have this node number. Both 16 and 18 node modes exist in both ad and non-ad modes. What might be the reason...

Hi Rich,

Thank you for your quick reply. I observe that in the description for the output file (the link below), it appears small p there.

https://bitbucket.org/rhdtownsend/gyre/ ... es%20(4.4)

Thank you

Sincerely,
Jing

Hi, I am using gyre 5.0. As I include the lag_p or eul_p in the output list for mode file for &ad_output: mode_item_list = 'l,n_pg,omega,x,xi_r,xi_h,eul_p' Gyre reports error below: item:eul_p ABORT at line 456 <gyre_output:write_mode:write_mode_evol_>: Invalid item STOP Program aborted How could I ...

Hi Rich,

Thank you very much for clarifying my questions. It is very helpful . Have a nice day .

Sincerely,
Jing

Hi Rich, Thank you for answering my questions about the convection zone :D . For the optically thin part of the stellar model, does gyre not calculate any non-adiabatic effect please? I ask this question because the mesa model I use includes the part with optical depth << 2/3. So I am wondering how ...

Hi Rich,

Another question please , to make sure I understand you.

By 'convection frozen', do you mean that gyre ignores the fact that convection can mix the entropy perturbations throughout the convection zone please?

Thank you very much

Sincerely,
Jing

Hi Rich,

Thank you so much for your quick response May I ask what you mean specifically (exactly) by
'the convective heating/cooling term in the energy equation' please? Do you mean that gyre ignores the perturbation to the background(unperturbed-state) entropy gradient please?

Sincerely,
Jing

May I ask for a reference explaining how gyre calculates non-adiabatic effect please? I am interested in g modes in white dwarfs. There is an outer convection zone. Does gyre only calculate non-adiabatic effect due to photon diffusion please? If yes, how does it treat the non-adiabatic effect in the...

Are the xi_r and xi_h in the output mode file consistent with the following formula please? I define er, etheta, and ephi as the normal vectors along r, theta, and phi directions in a spherical coordiantes, and Y_{lm} is the normalized spherical harmonic. xi (vector) = xi_r *Y_{lm}*er + xi_h *({\par...