2005A&A...437L...7A

Query : 2005A&A...437L...7A

2005A&A...437L...7A - Astronomy and Astrophysics, volume 437, L7-10 (2005/7-1)

Detection of TeV γ-ray emission from the shell-type supernova remnant RX J0852.0-4622 with HESS.

AHARONIAN F., AKHPERJANIAN A.G., BAZER-BACHI A.R., BEILICKE M., BENBOW W., BERGE D., BERNLOEHR K., BOISSON C., BOLZ O., BORREL V., BRAUN I., BREITLING F., BROWN A.M., CHADWICK P.M., CHOUNET L.-M., CORNILS R., COSTAMANTE L., DEGRANGE B., DICKINSON H.J., DJANNATI-ATAIE A., DRURY L.O'C., DUBUS G., EMMANOULOPOULOS D., ESPIGAT P., FEINSTEIN F., FONTAINE G., FUCHS Y., FUNK S., GALLANT Y.A., GIEBELS B., GILLESSEN S., GLICENSTEIN J.F., GORET P., HADJICHRISTIDIS C., HAUSER M., HEINZELMANN G., HENRI G., HERMANN G., HINTON J.A., HOFMANN W., HOLLERAN M., HORNS D., JACHOLKOWSKA A., DE JAGER O.C., KHELIFI B., KOMIN N., KONOPELKO A., LATHAM I.J., LE GALLOU R., LEMIERE A., LEMOINE-GOUMARD M., LEROY N., LOHSE T., MARTIN J.M., MARTINEAU-HUYNH O., 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., PUEHLHOFER G., PUNCH M., RAUBENHEIMER B.C., RAUE M., RAUX J., RAYNER S.M., REIMER A., REIMER O., RIPKEN J., ROB L., ROLLAND L., ROWELL G., SAHAKIAN V., SAUGE L., SCHLENKER S., SCHLICKEISER R., SCHUSTER C., SCHWANKE U., SIEWERT M., SOL H., SPANGLER D., STEENKAMP R., STEGMANN C., TAVERNET J.-P., TERRIER R., THEORET C.G., TLUCZYKONT M., VASILEIADIS G., VENTER C., VINCENT P., VOELK H.J. and WAGNER S.J.

Abstract (from CDS):

We report the detection of TeV γ-rays from the shell-type supernova remnant RX J0852.0-4622 with data of 3.2h of live time recorded with HESS in February 2004. An excess of (700±60) events from the whole remnant with a significance of 12σ was found. The observed emission region is clearly extended with a radius of the order of 1° and the spatial distribution of the signal correlates with X-ray observations. The spectrum in the energy range between 500GeV and 15TeV is well described by a power law with a photon index of Γ=2.1±0.1stat±0.2syst and a differential flux at 1TeV of φ1TeV=(2.1±0.2stat±0.6syst)x10–11/cm2/s/TeV. The integral flux above 1TeV was measured to be Φ(E>1TeV)=(1.9±0.3stat±0.6syst)x10–11/cm2/s, which is at the level of the flux of the Crab nebula at these energies. More data are needed to draw firm conclusions on the magnetic field in the remnant and the type of the particle population creating the TeV γ-rays.

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Journal keyword(s): gamma rays: observations - supernovae: individual: RX J0852.0-4622 = G266.2-1.2

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 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1230 2
2 NAME Vela Jr SN BL? 08 52.0 -46 20           ~ 474 2
3 2XMM J085201.4-461753 X 08 52 01.4 -46 17 53           ~ 46 1
4 NGC 2736 HII 09 00.2 -45 57           ~ 18 0
5 1FGL J1711.7-3944c BL? 17 12 27 -39 41.2     12.27     ~ 723 1

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