Abstract
We report a possible detection of TeV gamma rays from the Galactic center by the Whipple 10 m gamma-ray telescope. Twenty-six hours of data were taken over an extended period from 1995 through 2003 resulting in a total significance of 3.7 sigma. The measured excess corresponds to an integral flux of 1.6 x 10(-8) + - 0.5 x 10(-8) (stat) + - 0.3 x 10(-8) (sys) photons m(-2) s(-1) above an energy of 2.8 TeV, roughly 40% of the flux from the Crab Nebula at this energy. The 95% confidence region has an angular extent of about 15 and includes the position of Sgr A*. The detection is consistent with a point source and shows no evidence of variability.
| Original language | English (Ireland) |
|---|---|
| Number of pages | 4 |
| Journal | Astrophysical Journal |
| Volume | 608 |
| Publication status | Published - 1 Jun 2004 |
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Kosack, K,Badran, HM,Bond, IH,Boyle, PJ,Bradbury, SM,Buckley, JH,Carter-Lewis, DA,Celik, O,Connaughton, V,Cui, W,Daniel, M,D'Vall, M,Perez, IDL,Duke, C,Falcone, A,Fegan, DJ,Fegan, SJ,Finley, JP,Fortson, LF,Gaidos, JA,Gammell, S,Gibbs, K,Gillanders, GH,Grube, J,Gutierrez, K,Hall, J,Hall, TA,Hanna, D,Hillas, AM,Holder, J,Horan, D,Jarvis, A,Jordan, M,Kenny, GE,Kertzman, M,Kieda, D,Kildea, J,Knapp, J,Krawczynski, H,Krennrich, F,Lang, MJ,Le Bohec, S,Linton, E,Lloyd-Evans, J,Milovanovic, A,McEnery, J,Moriarty, R,Muller, D,Nagai, T,Nolan, S,Ong, RA,Pallassini, R,Petry, D,Power-Mooney, B,Quinn, J,Quinn, M,Ragan, K,Rebillot, P,Reynolds, PT,Rose, HJ,Schroedter, M,Sembroski, GH,Swordy, SP,Syson, A,Vassiliev, VV,Wakely, SP,Walker, G,Weekes, TC,Zweerink, J