2007A&A...469L...1A

Query : 2007A&A...469L...1A

2007A&A...469L...1A - Astronomy and Astrophysics, volume 469, L1-4 (2007/7-1)

Discovery of a point-like very-high-energy γ-ray source in Monoceros.

AHARONIAN F.A., AKHPERJANIAN A.G., BAZER-BACHI A.R., BEHERA B., BEILICKE M., BENBOW W., BERGE D., BERNLOEHR K., BOISSON C., BOLZ O., BORREL V., BRAUN I., BRION E., BROWN A.M., BUEHLER R., BUESCHING I., BOUTELIER T., CARRIGAN S., CHADWICK P.M., CHOUNET L.-M., COIGNET G., CORNILS R., COSTAMANTE L., DEGRANGE B., DICKINSON H.J., DJANNATI-ATAIE A., DOMAINKO W., DRURY L.O'C., DUBUS G., EGBERTS K., EMMANOULOPOULOS D., ESPIGAT P., FARNIER C., FEINSTEIN F., FIASSON A., FOERSTER A., FONTAINE G., FUNK SEB., FUNK S., FUESSLING M., GALLANT Y.A., GIEBELS B., GLICENSTEIN J.F., GLUECK B., GORET P., HADJICHRISTIDIS C., HAUSER D., HAUSER M., HEINZELMANN G., HENRI G., HERMANN G., HINTON J.A., HOFFMANN A., HOFMANN W., HOLLERAN M., HOPPE S., HORNS D., JACHOLKOWSKA A., DE JAGER O.C., KENDZIORRA E., KERSCHHAGGL M., KHELIFI B., KOMIN N., KOSACK K., LAMANNA G., LATHAM I.J., LE GALLOU R., LEMIERE A., LEMOINE-GOUMARD M., LOHSE T., MARTIN J.M., MARTINEAU-HUYNH O., MARCOWITH A., MASTERSON C., MAURIN G., McCOMB T.J.L., MOULIN E., DE NAUROIS M., NEDBAL D., NOLAN S.J., NOUTSOS A., OLIVE J.-P., ORFORD K.J., OSBORNE J.L., PANTER M., PEDALETTI G., PELLETIER G., PETRUCCI P.-O., PITA S., PUEHLHOFER G., PUNCH M., RANCHON S., RAUBENHEIMER B.C., RAUE M., RAYNER S.M., REIMER O., RIPKEN J., ROB L., ROLLAND L., ROSIER-LEES S., ROWELL G., RUPPEL J., SAHAKIAN V., SANTANGELO A., SAUGE L., SCHLENKER S., SCHLICKEISER R., SCHROEDER R., SCHWANKE U., SCHWARZBURG S., SCHWEMMER S., SHALCHI A., SOL H., SPANGLER D., STEENKAMP R., STEGMANN C., SUPERINA G., TAM P.H., TAVERNET J.-P., TERRIER R., TLUCZYKONT M., VAN ELDIK C., VASILEIADIS G., VENTER C., VIALLE J.P., VINCENT P., VOELK H.J., WAGNER S.J., WARD M., MORIGUCHI Y. and FUKUI Y.

Abstract (from CDS):

The complex Monoceros Loop SNR/Rosette Nebula region contains several potential sources of very-high-energy (VHE) γ-ray emission and two as yet unidentified high-energy EGRET sources. Sensitive VHE observations are required to probe acceleration processes in this region. The HESS telescope array has been used to search for very high-energy γ-ray sources in this region. CO data from the NANTEN telescope were used to map the molecular clouds in the region, which could act as target material for γ-ray production via hadronic interactions. We announce the discovery of a new γ-ray source, HESSJ0632+057, located close to the rim of the Monoceros SNR. This source is unresolved by HESS and has no clear counterpart at other wavelengths but is possibly associated with the weak X-ray source 1RXSJ063258.3+054857, the Be-star MWC148 and/or the lower energy γ-ray source 3EGJ0634+0521. No evidence for an associated molecular cloud was found in the CO data.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: observations

Simbad objects: 6

Full paper

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Number of rows : 6

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Sp type	#ref 1850 - 2023	#notes
1	NAME Rosette Nebula	HII	06 32 26.76	+04 47 37.1				~	486	1
2	3EG J0634+0521	gam	06 32 51.3	+05 50 43				~	25	0
3	HD 259440	HXB	06 32 59.2566076656	+05 48 01.160755848	9.17	9.63	9.15	B0pe	213	0
4	PSR J0635+0533	Psr	06 35 17.4	+05 33 21		13.81	12.83	B1IIIe-B2Ve	45	0
5	NAME MONOCEROS NEB	SNR	06 38 43	+06 30.2				~	242	0
6	NAME Galactic Center	reg	17 45 39.60213	-29 00 22.0000				~	13903	0

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