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This document describes the basics of the analysis of X-ray data obtained using the XRISM observatory. It explains the required software, the data download procedure, the data structure and contents, the standard data reduction, and the creation of analysis products. Readers should be familiar with basic astronomical X-ray analysis and the XRISM instruments at this stage. If not, please refer to the following XRISM Guest Observer Facility (GOF) page for general XRISM satellite information:
https://heasarc.gsfc.nasa.gov/docs/xrism
or the Proposer's Observatory Guide (hereafter, POG) for the XRISM Guest Observer's program available at:
https://heasarc.gsfc.nasa.gov/docs/xrism/proposals/POG/
This document does not cover the analysis of data obtained for unusual instrument setups or observing conditions, complex data reduction methods, or advanced data analysis techniques. Please note that a future version of the document may cover them.
Chapter 2 describes information on current caveats and things to watch out for when working with XRISM data.
Chapter 3 describes the software needed for XRISM data analysis,
including instructions for downloading and installation.
Chapter 4 explains the XRISM data directory structure, coordinate systems,
and file names and formats.
Chapter 5 provides a broad overview of the data analysis flow.
Chapters 6 and 7 describe in depth how to analyze Resolve and Xtend
instrument data, respectively.
Users who encounter problems reducing XRISM data may ask questions at one of the following help desks.
NASA: https://heasarc.gsfc.nasa.gov/cgi-bin/Feedback
JAXA: https://xrism.isas.jaxa.jp/research/
ESA: https://www.cosmos.esa.int/web/xrism