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.. _xray_data_README:
Auxiliary Data Files for use with yt's Photon Simulator
=======================================================
Included in the `xray_data <https://yt-project.org/data/xray_data.tar.gz>`_ package are a number of files that you may find
useful when working with yt's X-ray `photon_simulator
<photon_simulator.html>`_ analysis module. They have been tested to give spectral fitting results
consistent with input parameters.
Spectral Model Tables
---------------------
* tbabs_table.h5:
Tabulated values of the galactic absorption cross-section in HDF5
format, generated from the routines at http://pulsar.sternwarte.uni-erlangen.de/wilms/research/tbabs/
ARFs and RMFs
-------------
We have tested the following ARFs and RMFs with the photon
simulator. These can be used to generate a very simplified
representation of an X-ray observation, using a uniform, on-axis
response. For more accurate models of X-ray observations we suggest
using MARX or SIMX (detailed below_).
* Chandra: chandra_ACIS-S3_onaxis_arf.fits, chandra_ACIS-S3_onaxis_rmf.fits
Generated from the CIAO tools, on-axis on the ACIS-S3 chip.
* XMM-Newton: pn-med.arf, pn-med.rmf
EPIC pn CCDs (medium filter), taken from SIMX
* Astro-H: sxt-s_100208_ts02um_intall.arf, ah_sxs_7ev_basefilt_20090216.rmf
SXT-S+SXS responses taken from http://astro-h.isas.jaxa.jp/researchers/sim/response.html
* NuSTAR: nustarA.arf, nustarA.rmf
Averaged responses for NuSTAR telescope A generated by Dan Wik (NASA/GSFC)
.. _below:
Other Useful Things Not Included Here
-------------------------------------
* AtomDB: http://www.atomdb.org
FITS table data for emission lines and continuum emission. Must have
it installed to use the TableApecModel spectral model.
* PyXspec: https://heasarc.gsfc.nasa.gov/xanadu/xspec/python/html/
Python interface to the XSPEC spectral-fitting program. Two of the
spectral models for the photon simulator use it.
* MARX: https://space.mit.edu/ASC/MARX/
Detailed ray-trace simulations of Chandra.
* SIMX: http://hea-www.harvard.edu/simx/
Simulates a photon-counting detector's response to an input source,
including a simplified models of telescopes.
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