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2004ApJ...608L..97K - Astrophys. J., 608, L97-L100 (2004/June-3)

TeV gamma-ray observations of the Galactic Center.

KOSACK K., BADRAN H.M., BOND I.H., BOYLE P.J., BRADBURY S.M., BUCKLEY J.H., CARTER-LEWIS D.A., CELIK O., CONNAUGHTON V., CUI W., DANIEL M., D'VALI M., DE LA CALLE PEREZ I., DUKE C., FALCONE A., FEGAN D.J., FEGAN S.J., FINLEY J.P., FORTSON L.F., GAIDOS J.A., GAMMELL S., GIBBS K., GILLANDERS G.H., GRUBE J., GUTIERREZ K., HALL J., HALL T.A., HANNA D., HILLAS A.M., HOLDER J., HORAN D., JARVIS A., JORDAN M., KENNY G.E., KERTZMAN M., KIEDA D., KILDEA J., KNAPP J., KRAWCZYNSKI H., KRENNRICH F., LANG M.J., LE BOHEC S., LINTON E., LLOYD-EVANS J., MILOVANOVIC A., McENERY J., MORIARTY P., MULLER D., NAGAI T., NOLAN S., ONG R.A., PALLASSINI R., PETRY D., POWER-MOONEY B., QUINN J., QUINN M., RAGAN K., REBILLOT P., REYNOLDS P.T., ROSE H.J., SCHROEDTER M., SEMBROSKI G.H., SWORDY S.P., SYSON A., VASSILIEV V.V., WAKELY S.P., WALKER G., WEEKES T.C. and ZWEERINK J.

Abstract (from CDS):

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 σ. The measured excess corresponds to an integral flux of 1.6x10–8±0.5x10–8 (stat)±0.3x10–8 (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.

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Journal keyword(s): Cosmology: Dark Matter - Galaxy: Center - Galaxy: Nucleus - Gamma Rays: Observations

Simbad objects: 7

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