get_xsabund

sherpa.astro.xspec.get_xsabund(element: str | None = None) str | float[source] [edit on github]

Return the X-Spec abundance setting or elemental abundance.

Parameters:

element (str, optional) – When not given, the abundance table name is returned. If a string, then it must be an element name from: ‘H’, ‘He’, ‘Li’, ‘Be’, ‘B’, ‘C’, ‘N’, ‘O’, ‘F’, ‘Ne’, ‘Na’, ‘Mg’, ‘Al’, ‘Si’, ‘P’, ‘S’, ‘Cl’, ‘Ar’, ‘K’, ‘Ca’, ‘Sc’, ‘Ti’, ‘V’, ‘Cr’, ‘Mn’, ‘Fe’, ‘Co’, ‘Ni’, ‘Cu’, ‘Zn’. Case is important.

Returns:

val – When element is None, the abundance table name is returned (see set_xsabund); the string ‘file’ is used when the abundances were read from a file. A numeric value is returned when an element name is given. This value is the elemental abundance relative to H.

Return type:

str or float

See also

set_xsabund

Examples

Return the current abundance setting, which in this case is ‘angr’, the default value for X-Spec:

>>> get_xsabund()
'angr'

The set_xsabund function has been used to read in the abundances from a file, so the routine now returns the string ‘file’:

>>> set_xsabund('abund.dat')
>>> get_xsabund()
'file'
>>> get_xsabund('He')
0.09769999980926514