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Question ID = 0039

Assigned Member (担当者)

2006-12-01 Y.Terada

Name and Institute (質問者/機関)

Dr.Lidia Oskinova, (Potsdam University)

Question (質問)

Dear HelpDesk,

I have performed data reduction of HDX PIN according to the "Seven Steps to the Suzaku HXD analysis", the bkg exposure times were corrected. The recommended background files from Index of
/suzaku/analysis/hxd/hxdnxb/pinnxb_ver1.2_w123.
were also used.

What is a correct way to produce a spectrum with subtracted background -- how was it done for the green histograms in Fig.1 in
SUZAKU-MEMO-2006-42?
I would like to fit a 0.2-50 keV (xis +pin) spectrum simultaneously in xspec.


Thanks,
Lidia

Answer from(回答の文責)

Suzak Help, Y.Terada

Answer (答え)

If you want to fit your spectrum data, we use XSPEC package in HEASOFT which is available from this URL.
Here's an example to fit your pha file, example.pha, with XSPEC. We assume the background file name example_bgd.pha and response file, example.rsp.
% xspec
XSPEC> data example.pha
XSPEC> back example_bgd.pha
XSPEC> resp example.rsp
XSPEC> cpd /xw <----- if you use X-Window-System
XSPEC> plot ldata <----- plot in Channel Space
XSPEC> setp energy <----- change X-axis to Energy
XSPEC> plot ldata <----- plot in Channel Space
XSPEC> model pow <----- put your model (pow low)
XSPEC> fit
XSPEC> plot ldata delchi <------ plot results

For further information, please check the manual page.

Status (詳細なステータス)

2006-12-01 Y.Terada Accept
2006-12-01 Y.Terada Done
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