2012A&A...539A.118A

Query : 2012A&A...539A.118A

2012A&A...539A.118A - Astronomy and Astrophysics, volume 539A, 118-118 (2012/3-1)

Discovery of VHE γ-ray emission from the BL Lacertae object B3 2247+381 with the MAGIC telescopes.

ALEKSIC J., ALVAREZ E.A., ANTONELLI L.A., ANTORANZ P., ASENSIO M., BACKES M., BARRIO J.A., BASTIERI D., BECERRA GONZALEZ J., BEDNAREK W., BERDYUGIN A., BERGER K., BERNARDINI E., BILAND A., BLANCH O., BOCK R.K., BOLLER A., BONNOLI G., BORLA TRIDON D., BRAUN I., BRETZ T., CANELLAS A., CARMONA E., CAROSI A., COLIN P., COLOMBO E., CONTRERAS J.L., CORTINA J., COSSIO L., COVINO S., DAZZI F., DE ANGELIS A., DE CANEVA G., DE CEA DEL POZO E., DE LOTTO B., DELGADO MENDEZ C., DIAGO ORTEGA A., DOERT M., DOMINGUEZ A., DOMINIS PRESTER D., DORNER D., DORO M., ELSAESSER D., FERENC D., FONSECA M.V., FONT L., FRUCK C., GARCIA LOPEZ R.J., GARCZARCZYK M., GARRIDO D., GIAVITTO G., GODINOVIC N., HADASCH D., HAFNER D., HERRERO A., HILDEBRAND D., HOEHNE-MOENCH D., HOSE J., HRUPEC D., HUBER B., JOGLER T., KELLERMANN H., KLEPSER S., KRAEHENBUEHL T., KRAUSE J., LA BARBERA A., LELAS D., LEONARDO E., LINDFORS E., LOMBARDI S., LOPEZ M., LOPEZ-ORAMAS A., LORENZ E., MAKARIEV M., MANEVA G., MANKUZHIYIL N., MANNHEIM K., MARASCHI L., MARIOTTI M., MARTINEZ M., MAZIN D., MEUCCI M., MIRANDA J.M., MIRZOYAN R., MIYAMOTO H., MOLDON J., MORALEJO A., MUNAR-ADROVER P., NIETO D., NILSSON K., ORITO R., OYA I., PANEQUE D., PAOLETTI R., PARDO S., PAREDES J.M., PARTINI S., PASANEN M., PAUSS F., PEREZ-TORRES M.A., PERSIC M., PERUZZO L., PILIA M., POCHON J., PRADA F., PRADA MORONI P.G., PRANDINI E., PULJAK I., REICHARDT I., REINTHAL R., RHODE W., RIBO M., RICO J., RUEGAMER S., SAGGION A., SAITO K., SAITO T.Y., SALVATI M., SATALECKA K., SCALZOTTO V., SCAPIN V., SCHULTZ C., SCHWEIZER T., SHAYDUK M., SHORE S.N., SILLANPAEAE A., SITAREK J., SNIDARIC I., SOBCZYNSKA D., SPANIER F., SPIRO S., STAMATESCU V., STAMERRA A., STEINKE B., STORZ J., STRAH N., SURIC T., TAKALO L., TAKAMI H., TAVECCHIO F., TEMNIKOV P., TERZIC T., TESCARO D., TESHIMA M., TIBOLLA O., TORRES D.F., TREVES A., UELLENBECK M., VANKOV H., VOGLER P., WAGNER R.M., WEITZEL Q., ZABALZA V., ZANDANEL F., ZANIN R., KADENIUS V., WEIDINGER M. and BUSON S.

Abstract (from CDS):

We study the non-thermal jet emission of the BL Lac object B3 2247+381 during a high optical state. The MAGIC telescopes observed the source during 13 nights between September 30th and October 30th 2010, collecting a total of 14.2h of good quality very high energy (VHE) γ-ray data. Simultaneous multiwavelength data was obtained with X-ray observations by the Swift satellite and optical R-band observations at the KVA-telescope. We also use high energy γ-ray (HE, 0.1-100GeV) data from the Fermi satellite. The BL Lac object B3 2247+381 (z=0.119) was detected, for the first time, at VHE γ-rays at a statistical significance of 5.6σ. A soft VHE spectrum with a photon index of -3.2±0.6 was determined. No significant short term flux variations were found. We model the spectral energy distribution using a one-zone SSC-model, which can successfully describe our data.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - BL Lacertae objects: individual: B3 2247+381

Simbad objects: 10

Full paper

View the references in ADS

Number of rows : 10

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2023	#notes
1	UGC 1841	Sy1	02 23 11.41124925	+42 59 31.3853324		15.71	14.81		~	554	2
2	8C 0716+714	BLL	07 21 53.4482942664	+71 20 36.363846516		15.5	15.50	14.27	~	1263	1
3	6C 101157+494057	BLL	10 15 04.1396533776	+49 26 00.706055496		16.56	16.15	14.58	~	353	3
4	6C 113337+702604	BLL	11 36 26.4090783600	+70 09 27.309071232		15.16	14.49	10.51	~	354	1
5	6C 121520+302351	BLL	12 17 52.0819904040	+30 07 00.634936872		16.07	15.62	13.47	~	461	1
6	3C 279	Bla	12 56 11.16657958	-05 47 21.5251510		18.01	17.75	15.87	~	2981	2
7	QSO B1553+113	BLL	15 55 43.0440048528	+11 11 24.365649948	14.91	14.72	14.57	13.99	~	537	1
8	QSO B2155-304	BLL	21 58 52.0652249880	-30 13 32.118447792		13.36	13.09	12.62	~	1698	1
9	NAME BL Lac	BLL	22 02 43.2913536816	+42 16 39.979416792		15.66	14.72		~	2215	1
10	LEDA 2126234	BLL	22 50 05.7481607616	+38 24 37.193100984			16.00	14.8	~	120	1

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