A data source that returns particle information about the members of a HOP-identified halo.
Attributes
indices |
Methods
bulk_velocity() | Returns the mass-weighted average velocity in cm/s. |
center_of_mass() | Calculate and return the center of mass. |
get_size() | |
get_sphere([center_of_mass]) | Returns a sphere source. |
maximum_density() | Return the HOP-identified maximum density. Not applicable to |
maximum_density_location() | Return the location HOP identified as maximally dense. Not |
maximum_radius([center_of_mass]) | Returns the maximum radius in the halo for all particles, either from the point of maximum density or from the center of mass. |
rms_velocity() | Returns the mass-weighted RMS velocity for the halo |
total_mass() | Returns the total mass in solar masses of the halo. |
virial_bin([virial_overdensity, bins]) | Returns the bin index of the virial radius of the halo. |
virial_info([bins]) | Calculates the virial information for the halo. |
virial_mass([virial_overdensity, bins]) | Return the virial mass of the halo in Msun, using only the particles |
virial_radius([virial_overdensity, bins]) | Return the virial radius of the halo in code units. |
write_particle_list(handle) |