Hello!
FoF Halos have a keyword called "GroupFirstSub". If the GroupFirstSub of the first halo is 0 and the GroupFirstSub of the second halo is 1000, can I understand that subhalos numbered 0 to 999 belong to the first halo?
Thank you very much.
That is correct, they are by definition the central subhalo, and then the satellite subhalos, of the first halo.
Hello!
FoF Halos have a keyword called "GroupFirstSub". If the GroupFirstSub of the first halo is 0 and the GroupFirstSub of the second halo is 1000, can I understand that subhalos numbered 0 to 999 belong to the first halo?
Thank you very much.
That is correct, they are by definition the central subhalo, and then the satellite subhalos, of the first halo.