create_rmf¶
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sherpa.astro.ui.
create_rmf
(rmflo, rmfhi, startchan=1, e_min=None, e_max=None, ethresh=None, fname=None, name='delta-rmf') [edit on github]¶ Create an RMF.
If fname is set to None then this creats 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.
New in version 4.10.1.
Parameters: - rmfhi (rmflo,) – 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.
- startchan (int, optional) – The starting channel number: expected to be 0 or 1 but this is not enforced.
- e_max (e_min,) – 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.
- fname (None 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 [1]).
- name (str, optional) – The name of the RMF data set
Returns: rmf
Return type: DataRMF instance
See also
References
[1] http://cxc.harvard.edu/ciao/ahelp/rmfimg.html