create_rmf

sherpa.astro.ui.create_rmf(rmflo, rmfhi, startchan=1, e_min=None, e_max=None, ethresh=None, fname=None, name='delta-rmf') → DataRMF [edit on github]

Create an RMF.

If fname is set to None then this creates a “perfect” RMF, which has a delta-function response (so each channel uniquely maps to a single energy bin), otherwise the RMF is taken from the image data stored in the file pointed to by fname.

Changed in version 4.17.0: Support for startchan values other than 1 has been improved.

Changed in version 4.16.0: The e_min and e_max values will use the rmflo and rmfhi values if not set.

Added in version 4.10.1.

Parameters:

rmflo, rmfhiarray: 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.
startchanint, optional: The starting channel number: it should match the offset value for the DataRMF class.
e_min, e_maxNone or array, optional: The E_MIN and E_MAX columns of the EBOUNDS block of the RMF. If not set they are taken from rmflo and rmfhi respectively.
ethreshnumber or None, optional: Passed through to the DataRMF call. It controls whether zero-energy bins are replaced.
fnameNone or str, optional: If None then a “perfect” RMF is generated, otherwise it gives the name of the two-dimensional image file which stores the response information (the format of this file matches that created by the CIAO tool rmfimg).
namestr, optional: The name of the RMF data set

Returns:

rmfDataRMF instance