darkhistory.electrons.ics.ics_spectrum.ics_spec

darkhistory.electrons.ics.ics_spectrum.ics_spec(eleckineng, photeng, T, as_pairs=False, inf_upp_bound=True, thomson_tf=None, rel_tf=None, T_ref=None)

ICS spectrum of secondary photons.

Switches between thomson_spec and rel_spec.

Parameters:

eleckinengndarray

Incoming electron energy.

photengndarray

Outgoing photon energy.

Tfloat

CMB temperature.

as_pairsbool, optional

If True, treats eleckineng and photeng as a paired list: produces eleckineng.size == photeng.size values. Otherwise, gets the spectrum at each photeng for each eleckineng, returning an array of length eleckineng.size*photeng.size.

inf_upp_boundbool

If True, calculates the approximate relativistic spectrum that is used for fast interpolation over different values of T. See Notes for more details. Default is True.

thomson_tfTransFuncAtRedshift, optional

Reference Thomson ICS transfer function. If specified, calculation is done by interpolating over the transfer function.

rel_tfTransFuncAtRedshift, optional

Reference relativistic ICS transfer function. If specified, calculation is done by interpolating over the transfer function.

T_reffloat, optional

The reference temperature at which the reference transfer functions is evaluated. If not specified, defaults to phys.TCMB(400).

Returns:

TransFuncAtRedshift

dN/(dt dE) of the outgoing photons, dt = 1 s, with self.in_eng = eleckineng and self.eng = photeng. self.rs is determined from T, and self.dlnz is normalized to 1 second.

Notes

Insert note on the suitability of the method.