array2xspec module

Manipulate python data to produce Xspec readable files

array2xspec.fake_pha(values, energies, errors=None, prefix='fake', respfile='NONE', telescope='FAKE', instrument='FAKE', afilter='NONE', backfile='NONE', corrfile='NONE', ancrfile='NONE', syserr=0, date='2001-01-01')[source]

Creates a fake pha file to be read fitted with xspec

Parameters:
  • values (ndarray) – Values of the fake data
  • energies (ndarray) – Array of bin edges for the x-axis (lenght of values + 1)
  • errors (ndarray, optional) – statistical error of the fake data. Default is zero
  • prefix (str, optional) – A prefix to save file as <prefix>.pha. Defauls is “fake”
Other Parameters:
 
  • date (str) – File creation date. Default is “2001-01-01”
  • telescope (str) – Name of the mission/telescope
  • instrument (str) – Name of the instrument used
  • afilter (str) – FILTER keyword
  • respfile (str) – Response file.
  • backfile (str) – Background file
  • corrfile (str) – CORRFILE keyword
  • ancrfile (str) – ANCRFILE keyword
  • syserr (float) – systematic error on data
Returns:
Return type:

Creates <prefix>.pha file in the current directory
array2xspec.fake_rmf(energies, prefix='fake', telescope='FAKE', instrument='FAKE', date='2001-01-01', afilter='NONE', effarea=1.0)[source]

Creates a dummy rmf file with a diagonal response

Parameters:
  • energies (ndarray) – Array of bin edges for the x-axis (lenght of values + 1)
  • prefix (str, optional) – A prefix to save file as <prefix>.pha. Defauls is “fake”
Other Parameters:
 
  • date (str) – File creation date. Default is “2001-01-01”
  • telescope (str) – Name of the mission/telescope
  • instrument (str) – Name of the instrument used
  • afilter (str) – FILTER keyword
  • effarea (float) – EFFAREA keyword.
Returns:
Return type:

Creates <prefix>.rmf file in the current directory
array2xspec.read_from_txt(filename)[source]

Reads a text file to create xspec readable fits file

Parameters:filename (str) – A text files with 2 or 3 columns to read.
Returns:energies, values(, erros) – The columns present in the file text
Return type:ndarrays
Raises:IOError – If the files has less than 2 or more than 3 columns or is read as such due to formatting.