skypy.gravitational_waves.m_star_merger_rate

skypy.gravitational_waves.m_star_merger_rate(redshift, m_star, population)

M_star merger rate. Model of Artale et al (2020), equation (1) 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.

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_rate(ngal,) astropy.Quantity

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

References