E_to_F

zdm.cosmology.E_to_F(E, z, alpha=0, bandwidth=1000000000.0)

Convert isotropic-equivalent energy to observed fluence.

Uses the formula from Macquart & Ekers (2018) to convert burst energy at the source to observed fluence at the telescope.

Parameters:

• E (float or array_like) – Isotropic-equivalent burst energy in erg.

• z (float or array_like) – Redshift of the source.

• alpha (float, optional) – Spectral index where F_nu ~ nu^(-alpha). Default is 0 (flat spectrum).

• bandwidth (float, optional) – Observation bandwidth in Hz. Default is 1e9 (1 GHz).

Returns:

Fluence in Jy ms.

Return type:

float or ndarray