2009ApJ...707..612A

Query : 2009ApJ...707..612A

2009ApJ...707..612A - Astrophys. J., 707, 612-620 (2009/December-2)

Multiwavelength observations of a TeV-flare from W Comae.

ACCIARI V.A., ALIU E., AUNE T., BEILICKE M., BENBOW W., BOTTCHER M., BOLTUCH D., BUCKLEY J.H., BRADBURY S.M., BUGAEV V., BYRUM K., CANNON A., CESARINI A., CIUPIK L., COGAN P., CUI W., DICKHERBER R., DUKE C., FALCONE A., FINLEY J.P., FORTIN P., FORTSON L., FURNISS A., GALANTE N., GALL D., GIBBS K., GILLANDERS G.H., GRUBE J., GUENETTE R., GYUK G., HANNA D., HOLDER J., HUI C.M., HUMENSKY T.B., KAARET P., KARLSSON N., KERTZMAN M., KIEDA D., KONOPELKO A., KRAWCZYNSKI H., KRENNRICH F., LANG M.J., LEBOHEC S., MAIER G., McARTHUR S., McCANN A., McCUTCHEON M., MILLIS J., MORIARTY P., ONG R.A., OTTE A.N., PANDEL D., PERKINS J.S., PICHEL A., POHL M., QUINN J., RAGAN K., REYES L.C., REYNOLDS P.T., ROACHE E., ROSE H.J., SEMBROSKI G.H., SMITH A.W., STEELE D., THEILING M., THIBADEAU S., VARLOTTA A., VASSILIEV V.V., VINCENT S., WAKELY S.P., WARD J.E., WEEKES T.C., WEINSTEIN A., WEISGARBER T., WILLIAMS D.A., WISSEL S., WOOD M., PIAN E., VERCELLONE S., DONNARUMMA I., D'AMMANDO F., BULGARELLI A., CHEN A.W., GIULIANI A., LONGO F., PACCIANI L., PUCELLA G., VITTORINI V., TAVANI M., ARGAN A., BARBIELLINI G., CARAVEO P., CATTANEO P.W., COCCO V., COSTA E., DEL MONTE E., DE PARIS G., DI COCCO G., EVANGELISTA Y., FEROCI M., FIORINI M., FROYSLAND T., FRUTTI M., FUSCHINO F., GALLI M., GIANOTTI F., LABANTI C., LAPSHOV I., LAZZAROTTO F., LIPARI P., MARISALDI M., MASTROPIETRO M., MEREGHETTI S., MORELLI E., MORSELLI A., PELLIZZONI A., PEROTTI F., PIANO G., PICOZZA P., PILIA M., PORROVECCHIO G., PREST M., RAPISARDA M., RAPPOLDI A., RUBINI A., SABATINI S., SOFFITTA P., TRIFOGLIO M., TROIS A., VALLAZZA E., ZAMBRA A., ZANELLO D., PITTORI C., SANTOLAMAZZA P., VERRECCHIA F., GIOMMI P., COLAFRANCESCO S., SALOTTI L., VILLATA M., RAITERI C.M., ALLER H.D., ALLER M.F., ARKHAROV A.A., EFIMOVA N.V., LARIONOV V.M., LETO P., LIGUSTRI R., LINDFORS E., PASANEN M., KURTANIDZE O.M., TETRADZE S.D., LAHTEENMAKI A., KOTIRANTA M., CUCCHIARA A., ROMANO P., NESCI R., PURSIMO T., HEIDT J., BENITEZ E., HIRIART D., NILSSON K., BERDYUGIN A., MUJICA R., DULTZIN D., LOPEZ J.M., MOMMERT M., SORCIA M. and DE LA CALLE PEREZ I.

Abstract (from CDS):

We report results from an intensive multiwavelength campaign on the intermediate-frequency-peaked BL Lacertae object W Com (z = 0.102) during a strong outburst of very high energy gamma-ray emission in 2008 June. The very high energy gamma-ray signal was detected by VERITAS on 2008 June 7-8 with a flux F(>200 GeV) =(5.7±0.6)x10–11/cm2/s, about three times brighter than during the discovery of gamma-ray emission from W Com by VERITAS in 2008 March. The initial detection of this flare by VERITAS at energies above 200 GeV was followed by observations in high-energy gamma rays (AGILE; Eγ≥ 100 MeV), X-rays (Swift and XMM-Newton), and at UV, and ground-based optical and radio monitoring through the GASP-WEBT consortium and other observatories. Here we describe the multiwavelength data and derive the spectral energy distribution of the source from contemporaneous data taken throughout the flare.

Abstract Copyright: ∼

Journal keyword(s): BL Lacertae objects: individual: W Com - gamma rays: observations

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 3C 66A BLL 02 22 39.6114771888 +43 02 07.799534304   15.71 15.21 14.5   ~ 942 2
2 RX J1217.8+3007 BLL 12 17 52.0819904040 +30 07 00.634936872   16.07 15.62 13.47   G7 516 1
3 PG 1218+304 BLL 12 21 21.9426947832 +30 10 37.158534012   16.50 15.85 15.7   ~ 497 1
4 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 924 1
5 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
6 PG 1424+240 BLL 14 27 00.3917926224 +23 48 00.037510776 14.52 14.34 14.95 14.5   ~ 420 1
7 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1

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