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From: kirklong@u.boisestate.edu
Subject: Correlating Sources
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1 followups: 1

Private message: yes  no

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Notification:


Date: Mon, 12 Aug 2019 21:39:06 +0200
From: kirklong@u.boisestate.edu
To: xmmhelp@sciops.esa.int
Subject: Correlating Sources
Full_Name: Kirk Long
Submission from: (NULL) (193.147.152.102)


Hi--this is probably a dumb question, but I'm really struggling in trying to
find an answer in existing documentation. I am an undergraduate just starting in
research and I am trying to correlate sources observed by Chandra and XMM
Newton. The files I have already analyzed from CHANDRA using CIAO are organized
by source, and I am wondering if there is a way to do a similar thing with XMM
Newton pipeline products? I also have SAS installed and used it briefly to test
generate some files. Quite frankly I've just been overwhelmed by the data and
have been drowning in the documentation for XMM Newton searching for an answer.
The professor I'm working with is great, but he doesn't have any XMM experience
and is likewise very confused, so I figured it didn't hurt to ask for help
(we've both been floundering around trying to figure this out for a few weeks
now without success).

I am simply looking for a way to obtain photon count files by source (with RA
and DEC) that I can perform FFTs on, with the goal of potentially trying to find
faint sources or changes in periodicity of existing sources by comparing results
of XMM and CHANDRA observations. 

Thanks in advance for helping a newbie out! 

Best,
Kirk


Reply 1

Resend
From: Pedro Rodriguez <xmmhelp@sciops.esa.int>
To: kirklong@u.boisestate.edu
Subject: Re: Correlating Sources (PR#85536)
Date: Wed Aug 14 08:49:52 2019
Hi,

XMM-Newton pipeline processing produces lists of detected sources per
observation for all combined there EPIC cameras (see sect 6.5.5.5 of
"Specifications for individual SSC data products" available in the XMM-Newton
Proposer's Info and Manuals web page
(https://www.cosmos.esa.int/web/xmm-newton/documentation ). The compilation of
all
sources detected in EPIC cameras makes the XMM-Newton Serendipitous source
catalogue available from XMM-Newton Science Archive
(http://nxsa.esac.esa.int/nxsa-web/) or from the XMM Science Survey Center at
IRAP (http://xmmssc.irap.omp.eu/). A detailed description of the content of the
catalogue can be found in 
https://xmmssc-www.star.le.ac.uk/Catalogue/3XMM-DR4/UserGuide_xmmcat.html)

In addition, light curves are computed for sources for which a minimum number of
counts have been detected (sect. 6.5.3 in same document).

For processing from ODF instead of using pipeline processing products you may
want to have a look to our threads
(https://www.cosmos.esa.int/web/xmm-newton/sas-threads) which include guidelines
for source detection in EPIC cameras and generation of lightcurves individual
sources.

Sincerely,

Pedro 
> Full_Name: Kirk Long
> Submission from: (NULL) (193.147.152.102)
> 
> 
> Hi--this is probably a dumb question, but I'm really struggling in trying
to
> find an answer in existing documentation. I am an undergraduate just
starting
in
> research and I am trying to correlate sources observed by Chandra and XMM
> Newton. The files I have already analyzed from CHANDRA using CIAO are
organized
> by source, and I am wondering if there is a way to do a similar thing with
XMM
> Newton pipeline products? I also have SAS installed and used it briefly to
test
> generate some files. Quite frankly I've just been overwhelmed by the data
and
> have been drowning in the documentation for XMM Newton searching for an
answer.
> The professor I'm working with is great, but he doesn't have any XMM
experience
> and is likewise very confused, so I figured it didn't hurt to ask for help
> (we've both been floundering around trying to figure this out for a few
weeks
> now without success).
> 
> I am simply looking for a way to obtain photon count files by source (with
RA
> and DEC) that I can perform FFTs on, with the goal of potentially trying to
find
> faint sources or changes in periodicity of existing sources by comparing
results
> of XMM and CHANDRA observations. 
> 
> Thanks in advance for helping a newbie out! 
> 
> Best,
> Kirk
> 
> 


Followup 1

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From: Kirk Long <kirklong@u.boisestate.edu>
Date: Wed, 14 Aug 2019 20:37:44 -0600
Subject: Re: Correlating Sources (PR#85536)
To: Pedro Rodriguez <xmmhelp@sciops.esa.int>
--000000000000a9c0bf05901ec2c3
Content-Type: text/plain; charset="UTF-8"

Thank you for your response Pedro!

On Wed, Aug 14, 2019 at 12:49 AM Pedro Rodriguez <xmmhelp@sciops.esa.int>
wrote:

> Hi,
>
> XMM-Newton pipeline processing produces lists of detected sources per
> observation for all combined there EPIC cameras (see sect 6.5.5.5 of
> "Specifications for individual SSC data products" available in the
> XMM-Newton
> Proposer's Info and Manuals web page
> (https://www.cosmos.esa.int/web/xmm-newton/documentation ). The
> compilation of
> all
> sources detected in EPIC cameras makes the XMM-Newton Serendipitous source
> catalogue available from XMM-Newton Science Archive
> (http://nxsa.esac.esa.int/nxsa-web/) or from the XMM Science Survey
> Center at
> IRAP (http://xmmssc.irap.omp.eu/). A detailed description of the content
> of the
> catalogue can be found in
> https://xmmssc-www.star.le.ac.uk/Catalogue/3XMM-DR4/UserGuide_xmmcat.html)
>
> In addition, light curves are computed for sources for which a minimum
> number of
> counts have been detected (sect. 6.5.3 in same document).
>
> For processing from ODF instead of using pipeline processing products you
> may
> want to have a look to our threads
> (https://www.cosmos.esa.int/web/xmm-newton/sas-threads) which include
> guidelines
> for source detection in EPIC cameras and generation of lightcurves
> individual
> sources.
>
> Sincerely,
>
> Pedro
> > Full_Name: Kirk Long
> > Submission from: (NULL) (193.147.152.102)
> >
> >
> > Hi--this is probably a dumb question, but I'm really struggling in
> trying to
> > find an answer in existing documentation. I am an undergraduate just
> starting
> in
> > research and I am trying to correlate sources observed by Chandra and
XMM
> > Newton. The files I have already analyzed from CHANDRA using CIAO are
> organized
> > by source, and I am wondering if there is a way to do a similar thing
> with
> XMM
> > Newton pipeline products? I also have SAS installed and used it
briefly
> to
> test
> > generate some files. Quite frankly I've just been overwhelmed by the
> data and
> > have been drowning in the documentation for XMM Newton searching for
an
> answer.
> > The professor I'm working with is great, but he doesn't have any XMM
> experience
> > and is likewise very confused, so I figured it didn't hurt to ask for
> help
> > (we've both been floundering around trying to figure this out for a
few
> weeks
> > now without success).
> >
> > I am simply looking for a way to obtain photon count files by source
> (with RA
> > and DEC) that I can perform FFTs on, with the goal of potentially
trying
> to
> find
> > faint sources or changes in periodicity of existing sources by
comparing
> results
> > of XMM and CHANDRA observations.
> >
> > Thanks in advance for helping a newbie out!
> >
> > Best,
> > Kirk
> >
> >
>
> 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).
>
>
>

--000000000000a9c0bf05901ec2c3
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Thank you for your response
Pedro!<br></div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Aug 14,
2019=
 at 12:49 AM Pedro Rodriguez &lt;<a
href=3D"mailto:xmmhelp@sciops.esa.int">=
xmmhelp@sciops.esa.int</a>&gt;
wrote:<br></div><blockquote class=3D"gmail_q=
uote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,2=
04);padding-left:1ex">Hi,<br>
<br>
XMM-Newton pipeline processing produces lists of detected sources per<br>
observation for all combined there EPIC cameras (see sect 6.5.5.5 of<br>
&quot;Specifications for individual SSC data products&quot; available in
th=
e XMM-Newton<br>
Proposer&#39;s Info and Manuals web page<br>
(<a href=3D"https://www.cosmos.esa.int/web/xmm-newton/documentation" rel=3D=
"noreferrer" target=3D"_blank">https://www.cosmos.esa.int/web/xmm-newton/do=
cumentation</a> ). The compilation of<br>
all<br>
sources detected in EPIC cameras makes the XMM-Newton Serendipitous source<=
br>
catalogue available from XMM-Newton Science Arc

Message of length 9001 truncated

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