vice.toolkit.hydrodisk.hydrodiskstars.analog_data

Type : dataframe

The star particle data from the hydrodynamical simulation. The following keys map to the following data:

  • id: The IDs of each star particle

  • tform: The time the star particle formed in Gyr

  • rform: The radius the star particle formed at in kpc

  • rfinal: The radius the star particle ended up at in kpc

  • zform: The disk midplane distance in kpc at the time of formation.

  • zfinal: The disk midplane distance in kpc at the end of the simulation

  • vrad: The radial velocity of the star particle at the end of the simulation in km/sec

  • vphi: The azimuthal velocity of the star particle at the end of the simulation in km/sec

  • vz: The velocity perpendicular to the disk midplane at the end of the simulation in km/sec

  • decomp: An integer denoting which kinematic subclass the star particle belongs to (1: thin disk, 2: thick disk, 3: bulge, 4: pseudobulge, 5: halo).

Example Code

>>> from vice.toolkit.hydrodisk import hydrodiskstars
>>> import numpy as np
>>> example = hydrodiskstars(np.linspace(0, 20, 81))
>>> example.analog_data.keys()
['id', 'tform', 'rform', 'rfinal', 'zfinal', 'vrad', 'vphi', 'vz']
>>> example.analog_data["rfinal"][:10]
[2.0804,
 14.9953,
 2.2718,
 15.1236,
 2.3763,
 0.9242,
 9.0908,
 0.1749,
 8.415,
 20.1452]