Halo mass decrease for small groups ?

Yaqub Zheng
  • 18 Jan

While tracking the histories of each (main) halo, it appears that the halo mass of the small groups at the present day (snap_id = 99) experienced a decline in mass on average no matter i chose M200 or the summation of GroupMassType as halo mass indicator.


I have no idea about it, the mechanism behind the decrease in mass for the main halo remains unclear to me.

Dylan Nelson
  • 18 Jan

Perhaps you can pick a few individual examples from your low-mass bin, and look at them in more detail, to try to see what is going on.

Param Gogia
  • 26 Jan

Are these plots averaged for groups with similar halo masses?

  • Page 1 of 1