2007-10-29 A. Bamba
Martin Stuhlinger (ESAC)
In the FAQ page you mention that users are free to sum up spectra of
3x3n and 5x5n modes. Is this recommended as well?
If I understood correctly, the difference of these two modes is just the
amount of transmitted pixels around an event. As the CCD configuration
is the same, the response is the same for both modes, too.
Or in other words, using xselect, I can read the eventfiles of both
modes together to create a single combined spectrum out of the events of
both eventfiles, and I can calculate just a single rmf and arf response
for the combined spectrum?
I do not need to create a 3x3 spectrum + 3x3 rmf/arf, a 5x5 spectrum +
5x5 rmf/arf and combine these afterwards?
XIS team
The response/arf files are exactly same in the 3x3 and 5x5 mode
in the latest software and data,
since the grade identification uses
only 3x3 pixels around the peak pixel.
You can add 3x3 abd 5x5 data.
2007-10-29 Accept
2007-10-29 Done
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Question ID = 0077