from yt._typing import KnownFieldsT
from yt.fields.field_info_container import FieldInfoContainer
m_units = "Msun / h" # Msun / h
p_units = "Mpccm / h" # Mpc / h comoving
v_units = "km / s" # km /s phys, peculiar
r_units = "kpccm / h" # kpc / h comoving
[docs]
class RockstarFieldInfo(FieldInfoContainer):
known_particle_fields: KnownFieldsT = (
("particle_identifier", ("", [], None)),
("particle_position_x", (p_units, [], None)),
("particle_position_y", (p_units, [], None)),
("particle_position_z", (p_units, [], None)),
("particle_velocity_x", (v_units, [], None)),
("particle_velocity_y", (v_units, [], None)),
("particle_velocity_z", (v_units, [], None)),
("particle_corevel_x", (v_units, [], None)),
("particle_corevel_y", (v_units, [], None)),
("particle_corevel_z", (v_units, [], None)),
("particle_bulkvel_x", (v_units, [], None)),
("particle_bulkvel_y", (v_units, [], None)),
("particle_bulkvel_z", (v_units, [], None)),
("particle_mass", (m_units, [], "Mass")),
("virial_radius", (r_units, [], "Radius")),
("child_r", (r_units, [], None)),
("vmax_r", (v_units, [], None)),
# These fields I don't have good definitions for yet.
("mgrav", ("", [], None)),
("vmax", (v_units, [], "V_{max}")),
("rvmax", (v_units, [], None)),
("rs", (r_units, [], "R_s")),
("klypin_rs", (r_units, [], "Klypin R_s")),
("vrms", (v_units, [], "V_{rms}")),
("Jx", ("", [], "J_x")),
("Jy", ("", [], "J_y")),
("Jz", ("", [], "J_z")),
("energy", ("", [], None)),
("spin", ("", [], "Spin Parameter")),
("alt_m1", (m_units, [], None)),
("alt_m2", (m_units, [], None)),
("alt_m3", (m_units, [], None)),
("alt_m4", (m_units, [], None)),
("Xoff", ("", [], None)),
("Voff", ("", [], None)),
("b_to_a", ("", [], "Ellipsoidal b to a")),
("c_to_a", ("", [], "Ellipsoidal c to a")),
("Ax", ("", [], "A_x")),
("Ay", ("", [], "A_y")),
("Az", ("", [], "A_z")),
("b_to_a2", ("", [], None)),
("c_to_a2", ("", [], None)),
("A2x", ("", [], "A2_x")),
("A2y", ("", [], "A2_y")),
("A2z", ("", [], "A2_z")),
("bullock_spin", ("", [], "Bullock Spin Parameter")),
("kin_to_pot", ("", [], "Kinetic to Potential")),
("m_pe_b", ("", [], None)),
("m_pe_d", ("", [], None)),
("num_p", ("", [], "Number of Particles")),
("num_child_particles", ("", [], "Number of Child Particles")),
("p_start", ("", [], None)),
("desc", ("", [], None)),
("flags", ("", [], None)),
("n_core", ("", [], None)),
("min_pos_err", ("", [], None)),
("min_vel_err", ("", [], None)),
("min_bulkvel_err", ("", [], None)),
)