create_delta_rmf

sherpa.astro.instrument.create_delta_rmf(rmflo, rmfhi, offset=1, e_min=None, e_max=None, ethresh=None, name='delta-rmf', header=None)[source] [edit on github]

Create an ideal RMF.

The RMF has a unique mapping from channel to energy, in that each channel maps exactly to one energy bin, the mapping is monotonic, and there are no gaps.

New in version 4.10.1.

Parameters:

rmflo (array) – The energy bins (low and high, in keV) for the RMF. It is assumed that emfhi_i > rmflo_i, rmflo_j > 0, that the energy bins are either ascending, so rmflo_i+1 > rmflo_i or descending (rmflo_i+1 < rmflo_i), and that there are no overlaps. These correspond to the Elow and Ehigh columns (represented by the ENERG_LO and ENERG_HI columns of the MATRIX block) of the OGIP standard.
rmfhi (array) – The energy bins (low and high, in keV) for the RMF. It is assumed that emfhi_i > rmflo_i, rmflo_j > 0, that the energy bins are either ascending, so rmflo_i+1 > rmflo_i or descending (rmflo_i+1 < rmflo_i), and that there are no overlaps. These correspond to the Elow and Ehigh columns (represented by the ENERG_LO and ENERG_HI columns of the MATRIX block) of the OGIP standard.
offset (int, optional) – The starting channel number: expected to be 0 or 1 but this is not enforced.
e_min (None or array, optional) – The E_MIN and E_MAX columns of the EBOUNDS block of the RMF.
e_max (None or array, optional) – The E_MIN and E_MAX columns of the EBOUNDS block of the RMF.
ethresh (number or None, optional) – Passed through to the DataRMF call. It controls whether zero-energy bins are replaced.
name (str, optional) – The name of the RMF data set
header (dict) – Header for the created RMF

Returns:

rmf

Return type:

DataRMF instance