2009A&A...499..723A

Query : 2009A&A...499..723A

2009A&A...499..723A - Astronomy and Astrophysics, volume 499, 723-728 (2009/6-1)

Detection of very high energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06.

AHARONIAN F., AKHPERJANIAN A.G., ANTON G., BARRES DE ALMEIDA U., BAZER-BACHI A.R., BECHERINI Y., BEHERA B., BENBOW W., BERNLOEHR K., BOISSON C., BOCHOW A., BORREL V., BRAUN I., BRION E., BRUCKER J., BRUN P., BUEHLER R., BULIK T., BUESCHING I., BOUTELIER T., CARRIGAN S., CHADWICK P.M., CHARBONNIER A., CHAVES R.C.G., CHEESEBROUGH A., CHOUNET L.-M., CLAPSON A.C., COIGNET G., DALTON M., DANIEL M.K., DEGRANGE B., DEIL C., DICKINSON H.J., DJANNATI-ATAIE A., DOMAINKO W., DRURY L.O'C., DUBOIS F., DUBUS G., DYKS J., DYRDA M., EGBERTS K., EMMANOULOPOULOS D., ESPIGAT P., FARNIER C., FEINSTEIN F., FIASSON A., FOERSTER A., FONTAINE G., FUESSLING M., GABICI S., GALLANT Y.A., GERARD L., GIEBELS B., GLICENSTEIN J.F., GLUECK B., GORET P., HAUSER D., HAUSER M., HEINZ S., 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., JUNG I., KATARZYNSKI K., KATZ U., KAUFMANN S., KENDZIORRA E., KERSCHHAGGL M., KHANGULYAN D., KHELIFI B., KEOGH D., KOMIN N., KOSACK K., LAMANNA G., LENAIN J.-P., LOHSE T., MARANDON V., MARTIN J.M., MARTINEAU-HUYNH O., MARCOWITH A., MAURIN D., McCOMB T.J.L., MEDINA M.C., MODERSKI R., MOULIN E., NAUMANN-GODO M., DE NAUROIS M., NEDBAL D., NEKRASSOV D., NIEMIEC J., NOLAN S.J., OHM S., OLIVE J.-F., DE ONA WILHELMI E., ORFORD K.J., OSTROWSKI M., PANTER M., PAZ ARRIBAS M., PEDALETTI G., PELLETIER G., PETRUCCI P.-O., PITA S., PUEHLHOFER G., PUNCH M., QUIRRENBACH A., RAUBENHEIMER B.C., RAUE M., RAYNER S.M., RENAUD M., REIMER O., RIEGER F., RIPKEN J., ROB L., ROSIER-LEES S., ROWELL G., RUDAK B., RULTEN C.B., RUPPEL J., SAHAKIAN V., SANTANGELO A., SCHLICKEISER R., SCHOECK F.M., SCHROEDER R., SCHWANKE U., SCHWARZBURG S., SCHWEMMER S., SHALCHI A., SKILTON J.L., SOL H., SPANGLER D., STAWARZ L., STEENKAMP R., STEGMANN C., SUPERINA G., TAM P.H., TAVERNET J.-P., TERRIER R., TIBOLLA O., VAN ELDIK C., VASILEIADIS G., VENTER C., VENTER L., VIALLE J.P., VINCENT P., VIVIER M., VOELK H.J., VOLPE F., WAGNER S.J., WARD M., ZDZIARSKI A.A. and ZECH A.

Abstract (from CDS):

Detection of a γ-ray source above 300 GeV is reported, confirming the unidentified source MGRO J1908+06, discovered by the Milagro collaboration at a median energy of 20TeV. The source was observed during 27h as part of the extension of the HESS Galactic plane survey to longitudes >30°. HESS J1908+063 is detected at a significance level of 10.9σ with an integral flux above 1 TeV of (3.76±0.29_stat±0.75_sys)x10^–12ph/cm²/s, and a spectral photon index Γ= 2.10±0.07_stat±0.2_sys. The positions and fluxes of HESS J1908+063 and MGRO J1908+06 are in good agreement. Possible counterparts at other wavelengths and the origin of the γ-ray emission are discussed. The nearby unidentified GeV source, GRO J1908+0556 (GeV) which also remains unidentified and the new Fermi pulsar 0FGL J1907.5+0617, may be connected to the TeV source.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: observations

CDS comments: Abstract. 0FGL J1907.5+0617 is a probable misprint for 0FGL J1907.5+0602. Paragraph. 5. DSH J1907.4+0549 is a probable misprint for AX J1907.4+0549.

Simbad objects: 15

Full paper

View the references in ADS

Number of rows : 15

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Sp type	#ref 1850 - 2023	#notes
1	M 1	SNR	05 34 30.9	+22 00 53	~	6027	1
2	HESS J1718-385	gam	17 18 07	-38 33.0	~	31	0
3	SNR G006.4-00.1	SNR	18 01 22.7	-23 17 20	~	719	1
4	PSR B1823-13	Psr	18 26 13.06	-13 34 48.1	~	401	1
5	PSR J1856+0245	Psr	18 56 50.80	+02 45 50.2	~	36	0
6	4FGL J1857.7+0246e	Psr	18 57 11.0	+02 40 00	~	45	0
7	HESS J1858+020	gam	18 58 20.0	+02 05 24	~	39	0
8	NAME Sgr Arm	PoG	19 00	-30.0	~	615	1
9	2EG J1903+0529	gam	19 03 54.0	+05 31 17	~	29	1
10	SNR G040.5-00.5	SNR	19 07.2	+06 31	~	81	0
11	AX J1907.4+0549	X	19 07 21.3	+05 49 14	~	5	0
12	Juchert 3	OpC	19 07 33.0	+06 17 10	~	16	0
13	PSR J1907+06	Psr	19 07 54.751	+06 02 15.79	~	115	0
14	ARGO J1907+0627	gam	19 08 12.24	+06 23 30.8	~	70	0
15	ARGO J1912+1026	gam	19 12 14.9	+10 21 06	~	39	0

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