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From: Christopher Dessert <dessert@umich.edu>
Subject: Region with Energy-Dependent Extraction Regions
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From: Christopher Dessert <dessert@umich.edu>
Date: Mon, 13 May 2019 12:57:02 -0400
Subject: Region with Energy-Dependent Extraction Regions
To: Jan-Uwe Ness <xmmhelp@sciops.esa.int>
--000000000000c08c290588c7ce83
Content-Type: text/plain; charset="UTF-8"

Hi,

I am performing data reduction on, for example, 0106260201. I am using the
SAS task region with radiusstyle=enfrac and energyfraction=.9 to extract
the spectra of the target source. I was wondering what energy is this
energyfraction calculated at? In principle, I would like to extract from a
region with energy-dependent size such that I am getting 90% of the flux at
every energy (as I believe the PSF gets worse at larger energies). Is there
a possible way to do something like this? Can region calculate the radius
of the extraction region I need at each energy?

Thanks,

Chris

--000000000000c08c290588c7ce83
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Hi,</div><div><br></div><div>I
am performing data red=
uction on, for example, 0106260201. I am using the SAS task region with rad=
iusstyle=3Denfrac and energyfraction=3D.9 to extract the spectra of the tar=
get source. I was wondering what energy is this energyfraction calculated a=
t? In principle, I would like to extract from a region with energy-dependen=
t size such that I am getting 90% of the flux at every energy (as I believe=
 the PSF gets worse at larger energies). Is there a possible way to do some=
thing like this? Can region calculate the radius of the extraction region I=
 need at each energy?
<br></div><div><br></div><div>Thanks,</div><div><br><=
/div><div>Chris<br></div></div>

--000000000000c08c290588c7ce83--


Reply 1

Resend
From: Ignacio de la Calle <xmmhelp@sciops.esa.int>
To: dessert@umich.edu
Subject: Re: Region with Energy-Dependent Extraction Regions (PR#84932)
Date: Wed May 15 16:18:35 2019
Dear Christopher,

Region simply defines a single region, it doesn't have the capability to 
produce an energy dependent area. In fact none of the SAS tasks can handle
such an extraction. 

The energy, or range, used to derive the 90% flux value I will have to 
come back to you on that.

Regards,

Ignacio de la Calle
XMM-Newton SOC

> --000000000000c08c290588c7ce83
> Content-Type: text/plain; charset="UTF-8"
> 
> Hi,
> 
> I am performing data reduction on, for example, 0106260201. I am using the
> SAS task region with radiusstyle=enfrac and energyfraction=.9 to extract
> the spectra of the target source. I was wondering what energy is this
> energyfraction calculated at? In principle, I would like to extract from a
> region with energy-dependent size such that I am getting 90% of the flux
at
> every energy (as I believe the PSF gets worse at larger energies). Is
there
> a possible way to do something like this? Can region calculate the radius
> of the extraction region I need at each energy?
> 
> Thanks,
> 
> Chris
> 
> --000000000000c08c290588c7ce83
> Content-Type: text/html; charset="UTF-8"
> Content-Transfer-Encoding: quoted-printable
> 
> <div dir=3D"ltr"><div>Hi,</div><div><br></div><div>I
am performing data red=
> uction on, for example, 0106260201. I am using the SAS task region with
rad=
> iusstyle=3Denfrac and energyfraction=3D.9 to extract the spectra of the
tar=
> get source. I was wondering what energy is this energyfraction calculated
a=
> t? In principle, I would like to extract from a region with
energy-dependen=
> t size such that I am getting 90% of the flux at every energy (as I
believe=
>  the PSF gets worse at larger energies). Is there a possible way to do
some=
> thing like this? Can region calculate the radius of the extraction region
I=
>  need at each energy?
<br></div><div><br></div><div>Thanks,</div><div><br><=
> /div><div>Chris<br></div></div>
> 
> --000000000000c08c290588c7ce83--
> 
> 


Reply 2

Resend
From: Ignacio de la Calle <xmmhelp@sciops.esa.int>
To: dessert@umich.edu
Subject: Re: Region with Energy-Dependent Extraction Regions (PR#84932)
Date: Fri May 17 16:31:45 2019
Dear Christopher,

Regarding the energy at which the 90% of encircled energy is derived,
by default is 500 eV. It is not possible to change this via parameter
to make it energy dependent. Up to 2 keV the dependence with energy 
varies very little.

Regards,

Ignacio de la Calle
XMM-Newton SOC


Followup 1

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From: Christopher Dessert <dessert@umich.edu>
Date: Fri, 17 May 2019 13:45:25 -0400
Subject: Re: Region with Energy-Dependent Extraction Regions (PR#84932)
To: Ignacio de la Calle <xmmhelp@sciops.esa.int>
--0000000000004ee066058918f383
Content-Type: text/plain; charset="UTF-8"

Dear Ignacio,

Thanks for your help.

On Fri, May 17, 2019 at 10:31 AM Ignacio de la Calle
<xmmhelp@sciops.esa.int>
wrote:

> Dear Christopher,
>
> Regarding the energy at which the 90% of encircled energy is derived,
> by default is 500 eV. It is not possible to change this via parameter
> to make it energy dependent. Up to 2 keV the dependence with energy
> varies very little.
>
> Regards,
>
> Ignacio de la Calle
> XMM-Newton SOC
>
> This message is intended only for the recipient(s) named above. It may
> contain proprietary information and/or
> protected content. Any unauthorised disclosure, use, retention or
> dissemination is prohibited. If you have received
> this e-mail in error, please notify the sender immediately. ESA applies
> appropriate organisational measures to protect
> personal data, in case of data privacy queries, please contact the ESA
> Data Protection Officer (dpo@esa.int).
>
>
>

--0000000000004ee066058918f383
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Dear
Ignacio,</div><div><br></div><div>Thanks for you=
r help.</div></div><br><div
class=3D"gmail_quote"><div dir=3D"ltr" class=3D=
"gmail_attr">On Fri, May 17, 2019 at 10:31 AM Ignacio de la Calle
&lt;<a hr=
ef=3D"mailto:xmmhelp@sciops.esa.int">xmmhelp@sciops.esa.int</a>&gt;
wrote:<=
br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px
0px 0.8e=
x;border-left:1px solid rgb(204,204,204);padding-left:1ex">Dear Christopher=
,<br>
<br>
Regarding the energy at which the 90% of encircled energy is derived,<br>
by default is 500 eV. It is not possible to change this via parameter<br>
to make it energy dependent. Up to 2 keV the dependence with energy <br>
varies very little.<br>
<br>
Regards,<br>
<br>
Ignacio de la Calle<br>
XMM-Newton SOC<br>
<br>
This message is intended only for the recipient(s) named above. It may cont=
ain proprietary information and/or<br>
protected content. Any unauthorised disclosure, use, retention or dissemina=
tion is prohibited. If you have received<br>
this e-mail in error, please notify the sender immediately. ESA applies app=
ropriate organisational measures to protect<br>
personal data, in case of data privacy queries, please contact the ESA Data=
 Protection Officer (<a href=3D"mailto:dpo@esa.int"
target=3D"_blank">dpo@e=
sa.int</a>).<br>
<br>
<br>
</blockquote></div>

--0000000000004ee066058918f383--


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