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From: jsanz@rssd.esa.int
Subject: RGS light curves with bkg subtracted?
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Private message: yes  no

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Date: Mon, 30 Aug 2004 14:46:37 GMT
From: jsanz@rssd.esa.int
To: xmmhelp@xmm.vilspa.esa.es
CC: jsanz@rssd.esa.int
Subject: RGS light curves with bkg subtracted?
Full_Name: Jorge Sanz Forcada
Submission from: (NULL) (131.176.13.115)


Is there any way to get a light curve of RGS with the background subtracted? I
see it is possible to get a spectrum with bkg subtracted (rgsproc), and to get
the light curves of either the source or the background in RGS (evselect), but I
don't know how to get the light curve of the net signal.

Thanks in advance!


Reply 1

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From: Nora Loiseau <xmmhelp@xmm.vilspa.esa.es>
To: jsanz@rssd.esa.int
Subject: Re: RGS light curves with bkg subtracted? (PR#16090)
Date: Tue Aug 31 15:26:29 2004
Dear Jorge,

there is no straightforward way in SAS to have the net (background subtracted) 
light curve, you will have to use evselect to produce the spectrum light 
curve and then produce the best background light curve suited for your 
data, and subtract it.

Best regards,

Nora

----
Dr. Nora Loiseau
XMM-Newton User Support Group


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Date: Tue, 31 Aug 2004 17:38:25 +0200 (MEST)
From: Jorge Sanz <jsanz@rssd.esa.int>
Subject: Re: RGS light curves with bkg subtracted? (PR#16090)
To: Nora Loiseau <xmmhelp@xmm.vilspa.esa.es>
	Dear Nora,

	And how can I get the backscale of the areas used for these light
curves? ("backscale" is supposed to work only for EPIC). I can not
subtract the background light curve without this information.

	Thanks in advance,

	Jorge


On Tue, 31 Aug 2004, Nora Loiseau wrote:

> Dear Jorge,
>
> there is no straightforward way in SAS to have the net (background
subtracted)
> light curve, you will have to use evselect to produce the spectrum light
> curve and then produce the best background light curve suited for your
> data, and subtract it.
>
> Best regards,
>
> Nora
>
> ----
> Dr. Nora Loiseau
> XMM-Newton User Support Group
>

------------------------------------------------------------------
Jorge Sanz                                 Phone: +31-71-565 6127
Astrophysics Division, SCI-SA              Fax:   +31-71-565 4690
European Space Agency, P.O. Box 299
2200 AG Noordwijk (The Netherlands)    e-mail: jsanz@rssd.esa.int
------------------------------------------------------------------


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