2004A&A...425L..13A

Query : 2004A&A...425L..13A

2004A&A...425L..13A - Astronomy and Astrophysics, volume 425, L13-17 (2004/10-1)

Very high energy gamma rays from the direction of Sagittarius A*.

AHARONIAN F., AKHPERJANIAN A.G., AYE K.-M., BAZER-BACHI A.R., BEILICKE M., BENBOW W., BERGE D., BERGHAUS P., BERNLOEHR K., BOLZ O., BOISSON C., BORGMEIER C., BREITLING F., BROWN A.M., BUSSONS GORDO J., CHADWICK P.M., CHITNIS V.R., CHOUNET L.-M., CORNILS R., COSTAMANTE L., DEGRANGE B., DJANNATI-ATAIE A., DRURY L.O'C., ERGIN T., ESPIGAT P., FEINSTEIN F., FLEURY P., FONTAINE G., FUNK S., GALLANT Y., GIEBELS B., GILLESSEN S., GORET P., GUY J., HADJICHRISTIDIS C., HAUSER M., HEINZELMANN G., HENRI G., HERMANN G., HINTON J.A., HOFMANN W., HOLLERAN M., HORNS D., DE JAGER O.C., JUNG I., KHELIFI B., KOMIN N., KONOPELKO A., LATHAM I.J., LE GALLOU R., LEMOINE M., LEMIERE A., LEROY N., LOHSE T., MARCOWITH A., MASTERSON C., McCOMB T.J.L., DE NAUROIS M., NOLAN S.J., NOUTSOS A., ORFORD K.J., OSBORNE J.L., OUCHRIF M., PANTER M., PELLETIER G., PITA S., POHL M., PUEHLHOFER G., PUNCH M., RAUBENHEIMER B.C., RAUE M., RAUX J., RAYNER S.M., REDONDO I., REIMER A., REIMER O., RIPKEN J., RIVOAL M., ROB L., ROLLAND L., ROWELL G., SAHAKIAN V., SAUGE L., SCHLENKER S., SCHLICKEISER R., SCHUSTER C., SCHWANKE U., SIEWERT M., SOL H., STEENKAMP R., STEGMANN C., TAVERNET J.-P., THEORET C.G., TLUCZYKONT M., VAN DER WALT D.J., VASILEIADIS G., VINCENT P., VISSER B., VOELK H.J. and WAGNER S.J.

Abstract (from CDS):

We report the detection of a point-like source of very high energy (VHE) γ-rays coincident within 1' of Sgr A*, obtained with the HESS array of Cherenkov telescopes. The γ-rays exhibit a power-law energy spectrum with a spectral index of -2.2±0.09±0.15 and a flux above the 165GeV threshold of (1.82±0.22)x10–7/m2/s. The measured flux and spectrum differ substantially from recent results reported in particular by the CANGAROO collaboration. gamma-rays: observations - Galaxy: centre

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Journal keyword(s):

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 M 1 SNR 05 34 30.9 +22 00 53           ~ 6193 1
2 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5261 0
3 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14419 0
4 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4392 3
5 QSO B2155-304 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1733 1

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