Working version of the things LAT would like the HESS team to share with us.
At the moment, this page is not linked to anything else. Once we have a draft, it can be linked to the TeV page in Confluence.
Proposal - for each item, provide a brief description of why LAT wants it. LIST 1 - General and Programmatic Topics
Number | Item Wished from HESS | Rationale | |
---|---|---|---|
1 | Information about telescope performance and source observability, to the extent HESS is willing to share (Olaf's list - probably expand into several items here) | Allow estimates of LAT ability to add useful data | |
2 | Information about data analysis plans and procedures, to the extent HESS is willing to share (Olaf's list - probably expand into several items here) | Help determine comptability with LAT approaches | |
3 | Observing schedule | LAT can make sure quick results on HESS target sources are available | |
4 | Derived detections or upper limits (from archive) for LAT sources with hard enough spectra to be of interest | Constrain source models and/or time variability | |
Observing schedule | Enable LAT collaboration to react in a timely way on particular objects of interest on the basis of LAT observations. Community service for HESS. | ||
2 | Observing history | Enable LAT collaboration to check if VHE exposure is present. | |
3 | 5 | Tool to show visibility/sensitivity for any sky position at any time | If LAT sees something (like a flare) of interest, this tool would determine whether HESS should be notified. In addition, this information might determine whether a pointed Target of Opportunity for GLAST might include HESS. |
6 | Notifications of observed transient events | If HESS sees a transient event we could decide whether this should trigger a pointed Target of Opportunity. This kind of information is traditionally shared among VHE observatories and could be useful for us as well. | |
4 | Information about telescope performance/sensitivity, | Enable LAT collaboration to estimate usefulness of (any/further) VHE exposure for a particular scientific problem/approach. To be used in conjunction with the visibility tool and the response rationale in 3 - ToO. | |
5 | Information about data formats and open-source analysis tools. | Enable LAT team to determine the best approaches for common analysis with the LAT FITS format data and FTOOLS- and ROOT-based analysis. | |
6 7 | A procedure to obtain science products (lightcurves and skymaps) adapted to GLAST time and spatial resolution | Having comparable science products (e.g. in terms of rebinning) optimizes the comparison of data sets. | |
7 | Personal point(s) of contact | For efficient working on a well-defined scientific topic (MWL data analysis, joint proposal planning, coordinated observation campaigns etc. ) a personal representative for easy, knowledgeable, and daily exchange. Topically distinguishable (via working groups?) |
LIST 2 - Science-Oriented Topics
Number | Item Wished from HESS | Rationale |
---|---|---|
1 | Cross-calibration | Joint approach in methodology, feasibility and application. Long term issue. |
2 | Notifications of observed transient events | If HESS sees a transient event LAT could decide whether this should trigger a pointed GLAST Target of Opportunity. This kind of information is traditionally shared among VHE observatories and could be useful for us as well. |
3 8 | Time sharing on HESS observations | HESS could open might consider to reserve a fraction of its observation time for GLAST-LAT initiated projects (5%? more? with AO Sept. 2007?), to be conducted as joint observations. |
4 | Coordinated observation campaigns | A specific and instantly applicable policy to request VHE observations on LAT targets. Somewhat similar to (3). GLAST science data products on these projects would be shared with the HESS collaboration, but data sharing may or may not be the determining issue. |
5 | Upper limits or weak detections (below threshold for stand-alone publication) in regions of VHE coverage | Constrain source models for LAT sources on case-by-case base or for systematic studies on the basis of an occasionally updated u.l.-map. |
6 | Repeated monitoring of unidentified galactic sources seen by both H.E.S.S. and LAT | Investigate potential variability to aid in source identifcation. |
7 | VHE source spectra & lightcurves | Detailed MWL modeling of a few (t.b.d.) dedicated LAT/VHE objects. |
8 | Extended VHE source templates | Actual data products of extended VHE-sources to be used as morphology templates in LAT high-GeV analysis and MWL modeling. |