Hello, I have a question about the galactic coordinate data of the L-Galaxy in TNG300. Firstly, for the three redshift slices (z=0.1, 0.5, and 1) of TNG300-1, the 3D coordinate ranges of the galaxies are all from 0 to 205 Mpc. However, after downloading the corresponding L-Galaxy data, I noticed that the coordinate ranges for galaxies in these three redshift slices are different. For redshift 0.1, the 3D coordinate range of the galaxies is 0–225.5 Mpc; for redshift 0.5, it is 0–307.5 Mpc; and for redshift 1, it is 0–410 Mpc. i wanna know why the range is different between them. thanks
Dylan Nelson
27 Aug
Is it possibly related to the values of h (little Hubble constant) or a (the scale factor), i.e. related to the units of the coordinates?
Runnan Jiang
27 Aug
Thank you. I will go back and check if this is the cause.
Hello, I have a question about the galactic coordinate data of the L-Galaxy in TNG300. Firstly, for the three redshift slices (z=0.1, 0.5, and 1) of TNG300-1, the 3D coordinate ranges of the galaxies are all from 0 to 205 Mpc. However, after downloading the corresponding L-Galaxy data, I noticed that the coordinate ranges for galaxies in these three redshift slices are different. For redshift 0.1, the 3D coordinate range of the galaxies is 0–225.5 Mpc; for redshift 0.5, it is 0–307.5 Mpc; and for redshift 1, it is 0–410 Mpc. i wanna know why the range is different between them. thanks
Is it possibly related to the values of
h(little Hubble constant) ora(the scale factor), i.e. related to the units of the coordinates?Thank you. I will go back and check if this is the cause.