I'm going to make some scaling relations regarding BH with TNG-Cluster data. I wanna ask do we need to eliminate galaxies whose stellar mass or BH mass are near some threshold, like the seeding limits? If so, what is the appropriate boundary?
Dylan Nelson
21 Apr
You should always consider only galaxies above a stellar mass limit, which is many times the mass of a star particle. Typical choice would be 100x or 1000x, so e.g. M* = 1e9 Msun galaxies are probably the smallest you should consider with TNG-Cluster. (You will find similar choices made in the introductory papers of TNG300, which has the same resolution).
You are also right that SMBHs near the seed mass aren't particularly informative, and you may want to remove these. It depends on your specific science question. I would start first by keeping everything, and identifying (in plots) where the population of (many) small SMBHs near the seed mass are. You can then remove them, or not.
I'm going to make some scaling relations regarding BH with TNG-Cluster data. I wanna ask do we need to eliminate galaxies whose stellar mass or BH mass are near some threshold, like the seeding limits? If so, what is the appropriate boundary?
You should always consider only galaxies above a stellar mass limit, which is many times the mass of a star particle. Typical choice would be 100x or 1000x, so e.g. M* = 1e9 Msun galaxies are probably the smallest you should consider with TNG-Cluster. (You will find similar choices made in the introductory papers of TNG300, which has the same resolution).
You are also right that SMBHs near the seed mass aren't particularly informative, and you may want to remove these. It depends on your specific science question. I would start first by keeping everything, and identifying (in plots) where the population of (many) small SMBHs near the seed mass are. You can then remove them, or not.
Got it. Thank you!