Here is a list of the threads that have been added to or updated on the CIAO
Threads page, located at http://cxc.harvard.edu/ciao/documents_threads.html.
Please send questions and comments on the threads to the CXC HELPDESK
(http://cxc.harvard.edu/helpdesk/).
~Liz Galle, for the CIAO Docs Team
--Summary of Changes--
No new threads have been added.
Three threads have been updated:
Title: Clean ACIS Background in VFAINT Mode
Date: 3 Jun 2002
URL: http://cxc.harvard.edu/ciao/threads/aciscleanvf/
History:
removed note: it is necessary to run the Remove the acis_detect_afterglow
Correction thread, even if you have run this one.
Title: Remove the acis_detect_afterglow Correction
Date: 3 Jun 2002
URL: http://cxc.harvard.edu/ciao/threads/acisdetectafterglow/
History:
removed note: it is necessary to run this thread, even if you have run the
Clean ACIS Background in VFAINT Mode thread.
NOTE: a test of both of these methods showed that more than 30% -- but NOT
necessarily "most" -- of the events identified as potential cosmic-ray
afterglows are also identified as potential cosmic ray events using
"check_vf_pha=yes." It is therefore advisable to run the second thread to
identify the afterglow events, even if you have cleaned the background in
VFAINT mode.
*******************************************************
Title: ACIS Background Subtraction (Blank-Sky Files)
Date: 30 May 2002
URL: http://cxc.harvard.edu/ciao/threads/acisbackground/
History:
Added links to M. Markevitch's astro-ph paper discussing the affect of
backgrounds on galaxy cluster temperature profiles.
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