skypy.gravitational_waves.m_star_sfr_merger_rate

skypy.gravitational_waves.m_star_sfr_merger_rate(redshift, m_star, sfr, population)

M_star SFR merger rate. Model of Artale et al (2020), equation (2) with parameters from Tables I, II and III.

Compact binary merger rates as a power law function of a galaxy’s stellar mass.

Parameters are redshift dependent, with linear interpolation between the simulated points of z={0.1, 1, 2, 6}.

Parameters

redshift(ngal,) array_like

The redshifts of the galaxies to generate merger rates for.

m_star(ngal,) astropy.Quantity

The stellar mass of the galaxies to generate merger rates for, in units of stellar mass.

sfr(ngal,) astropy.Quantity

The star formation rate of the galaxies to generate merger rates for, in units of stellar mass per year

population{‘NS-NS’, ‘NS-BH’, ‘BH-BH’}

Compact binary population to get rate for. ‘NS-NS’ is neutron star - neutron star ‘NS-BH’ is neutron star - black hole ‘BH-BH’ is black hole - black hole

Returns

merger_rateastropy.Quantity

Merger rates for the galaxies in units of Gigayear^-1

References