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Analysis of Draco with EGRET

Analysis of Draco with EGRET. Larry Wai September 9, 2002. Dark Matter Search at Draco. See C.Tyler, Phys.Rev.D 66 , 023509 (2002) Location of Draco is (l,b)=(86.37 0 ,34.71 0 ) Nearest 3EG source is 41 0 distant Angle cut keeps at least 67% of photons for given energy band:

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Analysis of Draco with EGRET

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  1. Analysis of Draco with EGRET Larry Wai September 9, 2002

  2. Dark Matter Search at Draco • See C.Tyler, Phys.Rev.D 66, 023509 (2002) • Location of Draco is (l,b)=(86.370,34.710) • Nearest 3EG source is 410 distant • Angle cut keeps at least 67% of photons for given energy band: q < 5.850(E/100MeV)-0.534 • Use 60 < q < 100 annulus around Draco for background estimates • Use photon lists (qvp files) and energy/angle dependent “exposure” maps (exp files)

  3. Viewing Periods with Draco at least 100 from edge of exposure map

  4. Photon Counting at Draco

  5. Variability Analysis100 MeV – 150 MeV

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