{ "id": "0907.3921", "version": "v1", "published": "2009-07-22T20:07:40.000Z", "updated": "2009-07-22T20:07:40.000Z", "title": "VERITAS Observations of LS I +61 303 in the Fermi Era", "authors": [ "Jamie Holder", "for the VERITAS Collaboration" ], "comment": "Proc 31st ICRC, Lodz, Poland, 2009", "categories": [ "astro-ph.HE", "astro-ph.GA" ], "abstract": "The high-mass X-ray binary system LS I +61 303 is well known as a rare example of a variable Galactic GeV and TeV gamma-ray emitter. Despite years of study, many aspects of the system remain unclear; the nature of the compact object, the particle acceleration mechanisms and the gamma-ray emission and absorption processes can all be modelled in a variety of different scenarios. Here we report on a deep exposure of LS I +61 303 made with the VERITAS array during the 2008-2009 observing season. These are the first TeV observations made with contemporaneous coverage at lower energies by the LAT onboard Fermi, and as such provide a new set of constraints for system models.", "revisions": [ { "version": "v1", "updated": "2009-07-22T20:07:40.000Z" } ], "analyses": { "keywords": [ "fermi era", "veritas observations", "high-mass x-ray binary system ls", "tev gamma-ray emitter", "system remain unclear" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 826582, "adsabs": "2009arXiv0907.3921H" } } }