XSPEC Composite Model Partial Flux Calculations

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  • Thread starter Thread starter Joe Prendergast
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    Flux calculation X-ray
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SUMMARY

The discussion focuses on performing partial flux calculations using the XSPEC software, specifically with the model phabs*(pow + cflux*gaussian) on a WSL Ubuntu terminal. The user, Joe, successfully calculates a gaussian flux of 8.31189E-11 erg/s/cm^2 and seeks assistance in converting this value to counts/s/keV. The output from the flux command indicates a total flux of 0.069691 photons (8.5637e-10 ergs/cm^2/s), confirming the accuracy of the calculations for the entire model.

PREREQUISITES
  • Familiarity with XSPEC software for spectral analysis
  • Understanding of astrophysical flux measurements
  • Knowledge of WSL (Windows Subsystem for Linux) for running Ubuntu
  • Basic proficiency in converting flux units to counts/s/keV
NEXT STEPS
  • Research the XSPEC command for converting flux to counts/s/keV
  • Learn about the implications of gaussian flux in spectral fitting
  • Explore the use of the cflux model in XSPEC for spectral analysis
  • Investigate the relationship between erg/s/cm^2 and counts/s/keV conversions
USEFUL FOR

Astronomers, astrophysicists, and researchers involved in spectral analysis using XSPEC, particularly those working with flux calculations and conversions in astrophysical models.

Joe Prendergast
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TL;DR
XSPEC
Hello,
I am running a model in XSPEC: phabs*(pow + cflux*gaussian) on a WSL Ubuntu terminal.
The fit output shows lg10flux = -10.0803 which converts to a flux of 8.31189E-11 erg/s/cm^2. This is correct for the gaussian flux contribution.
The flux command produces:
0.069691 photons (8.5637e-10 ergs/cm^2/s)
This is correct for the entire model.
What I'd like to do is convert the gaussian flux of 8.31189E-11 erg/s/cm^2 to counts/s/keV.
Does anyone know how to do this?
Thanks,
Joe
 

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