Dear Stefan,

thanks for bringing this up. 

I like very much the idea of pursuing a heritage program with XMM, but I wonder if the X-ray properties of the Galactic TeV sources is a bit too wide to really have an impact. We can discuss further in Heidelberg, but since we need to have a preliminary proposal by the 6 of March (not sure if that’s correct?), maybe we could discuss it a bit online? Below I wrote a few thoughts...

For the general XMM follow-up of the HGPS, I see two (I guess obvious) problems: 1/ the size of the HESS are too large wrt the XMM FoV, 2/ there is already a large coverage of many of them, with different exposures. See as an example the plot below on the Galactic center region (contours are HESS on the XMM observations)


and here for a much larger region




We need a major effort to understand the coverage and the needed pointings. Maybe we could focus it on the unidentified bright sources and have a full coverage on them? 

* There are 47 sources classified as unidentified in the HGPS, from those, ~10 are bright above 1 TeV (>0.05 Crab), in which you would expect X-ray counterparts. The high energy part would give us also a better localisation of the emitter, and decrease the number of points… 


* A second possibility I can think of could be to focus on the VHE shell-like SNRs. For the brightest ones (Vela Jr., J1713) there is already quite a bit of coverage, but maybe for the new ones (or candidates) we can try to get some time? 

My 2 cents, hope this helps to shape a good proposal!
Best wishes
Emma





On 4 Feb 2020, at 20:33, Stefan Wagner <swagner@lsw.uni-heidelberg.de> wrote:

Dear all,

I cc Gerd (who will be interim chair of the new OC until the OC will elect
a chair in Obergurgl) for information.

last fall I participated again in the xmm review. In the meeting of panel
chairs we recommended the Multi-Year Heritage Programme of XMM for
continuation.
Based on the discussions among the XMM panel chairs, I thought that we may
consider this in HESS as well.

The XMM plan for Multi-Year Heritage Programms has now been approved and
has been announced (see below).

I wonder whether we should consider a proposal to study, e.g., the X-ray
properties of the Galactic TeV sources. This would combine the efforts of
the entire Galactic science in HESS. We should be clear that a proposal
would be a significant amount of work (last round's proposals were VERY
GOOD) but I think we would now have a good chance (with the published
HGPS out, etc.)

An obvious option would be to propose this effectively by HESS (Co-Is
would have to be individual HESS members). Please feel free to consider,
to comment, to  discuss in your groups. I suggest we discuss this briefly
on Feb 25/26. In case we wanted to go this way, we ought to prepare the
LOI
mentioned in the announcement at that mtg.

Best regards,
Stefan




---------------------------- Original Message ----------------------------
Subject: [SPAM?] [XMM-NEWS] XMM-NEWTON NEWS #228
From:    "XMM-Newton Newsletter" <xmm-news@sciops.esa.int>
Date:    Tue, February 4, 2020 11:51
To:      xmm-news@sciops.esa.int
--------------------------------------------------------------------------

                               News #228, 3 February 2020
           CONTENTS
            Letter of Intent for Multi-Year Heritage Programmes

       Anticipated timeline for next XMM-Newton         Announcement of
Opportunity: AO-20

       Let us know about XMM-Newton related Ph.D. and         prizes for
XMM-Newton results

           NEWS
                Letter of Intent for Multi-Year Heritage Programmes
In the next call for XMM-Newton proposals (20th Announcement of      
Opportunity) a "Multi-Year Heritage Programme" will be offered for      
the second time.

This programme seeks scientific visionary projects which require       at
least 2 Ms of observing time. A total of 6 Ms of observing       time,
spread over three years, is planned to be made available for       this
programme.

In order to organise the evaluation of "Multi-Year Heritage      
Programme" proposals, interested scientists are strongly urged to      
send an e-mail as letter of intent to the XMM-Newton Project      
Scientist (Norbert.Schartel + esa.int )            before 6 March 2020.
The e-mail should contain a       draft title, a short (up to three
sentences) description of the       respective scientific area and an
estimate of the required       observing time.
                Anticipated timeline for next XMM-Newton Announcement of
    Opportunity: AO-20
The planned key milestones for the Twentieth XMM-Newton      
"Announcement of Opportunity" have been established. Within this      
AO-20 a new call to submit proposals for observations to be      
performed with the XMM-Newton observatory will be issued.

To be prepared for this, please find below the anticipated       timeline:
                                Announcement of Opportunity            
18 August 2020                           
  Due date for Proposals             9
October 2020 (12:00 UT)                  
           Final OTAC approved programme
           mid December 2020            
                                        
                     For approved
proposals only:                          
                                        
                     Start of Phase II
proposal submission             11
January 2021                             
Closure of Phase II proposal submission
          5 February 2021               
              Start of observations     
      May 2021
The official "Announcement of Opportunity" will be made public       in
the XMM-Newton News and on the          XMM-Newton Science Operations
Centre Home Page.
                Let us know about XMM-Newton related Ph.D.
As already announced in  previous issues of this Newsletter, the      
XMM-Newton team is collecting information about the completion of      
doctorates and Ph.D. theses based on (or making use of) XMM-Newton      
observations.

We would appreciate if you - being a candidate or a supervisor       of a
doctorate - could let us know details through the page
              http://www.cosmos.esa.int/web/xmm-newton/phd-theses
Also, we would be grateful if you could inform us (via a message       to
xmmhelp@sciops.esa.int,       with subject "Ph.D. thesis work") in case
you are aware of theses       from, or supervised by, colleagues that
make use of XMM-Newton       data but are not yet included in the above
list.
           XMM-Newton Science Operations Centre at
      ESA’s European Space Astronomy Centre,
      Villanueva de la Cañada, Madrid, Spain
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