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XMM-Newton Science Analysis System


region (region-7.15.2) [xmmsas_20211130_0941-20.0.0]


Input Files

  1. A source list, which at minimum must contain a table extension named SRCLIST with the following columns:

    If radiusstyle=`contour', the source list should also contain WCS keywords so as to enable one to convert the flux-per-pixel background values to flux-per-arcsec. XMM EPIC source lists currently store these in a slightly non-standard way, as keywords in the table header, instead of as image-position column keywords. Since the major grist to region's mill is EPIC source lists, the task has been `hard-wired' to look for these header keywords. These keywords are described as follows:

    `n' in the above should run from 1 to 2.

    I realize that this is a very narrow and restrictive source-list format definition. In future it is hoped to be able to make region accept much more generic lists of sources.

  2. An XMM EPIC event list against which the region filter will be applied.

XMM-Newton SOC -- 2021-11-30