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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.

Separated into two lists.

LIST 1 - General and Programmatic Topics

Number

Item Wished from HESS

Rationale

1

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.
Helps reach conclusions on LAT science topics.

3

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.

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

TInformation 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

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

Time sharing on HESS observations

HESS could open a fraction of its observation time for GLAST-LAT initiated projects (5%? more? with AO Sept. 2007?). GLAST science data products on these projects would be shared with the HESS collaboration.

2

Coordinated observation campaigns

A specific and instantly applicable policy to request VHE observations on LAT targets. Somewhat similar to (8), but data sharing may or may not be the determining issue. Min. goal: Back-to-back submissions from both collaborations. Max. goal: see (8). This gurantees that at least data will be taken on a requested source, even if not ad hoc shared.

3

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.

4

X-calibration

Joint approach in methodology, feasibility and application. Long term issue.

5

Upper limits in regions of VHE coverage

Source identification without an "a prior" on the LAT spectrum. We dont know if there are IC-reprocesses components, distinct from LAT energetic coverage. Even sources with pronounced GeV cutoff may appeal. Ideal: occasionally updated upper limit map.

13

Repeated monitoring of not firmly identified galactic VHE/GeV source associations

Investigate potential variability to aid in source identifcation.

14

VHE source spectra & lightcurves

Detailed MWL modeling of a few (t.b.d.) dedicated LAT/VHE objects.

15

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?)

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