2009ApJ...691L..13D

Query : 2009ApJ...691L..13D

2009ApJ...691L..13D - Astrophys. J., 691, L13-L19 (2009/January-3)

The June 2008 flare of Markarian 421 from optical to TeV energies.

DONNARUMMA I., VITTORINI V., VERCELLONE S., DEL MONTE E., FEROCI M., D'AMMANDO F., PACCIANI L., CHEN A.W., TAVANI M., BULGARELLI A., GIULIANI A., LONGO F., PUCELLA G., ARGAN A., BARBIELLINI G., BOFFELLI F., CARAVEO P., CATTANEO P.W., COCCO V., COSTA E., DE PARIS G., DI COCCO G., EVANGELISTA Y., 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., PICOZZA P., PORROVECCHIO G., PREST M., RAPISARDA M., RAPPOLDI A., RUBINI A., 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., CHEN W.P., EFIMOVA N.V., JORDAN B., KONSTANTINOVA T.S., KOPTELOVA E., KURTANIDZE O.M., LARIONOV V.M., ROS J.A., SADUN A.C., ANDERHUB H., ANTONELLI L.A., ANTORANZ P., BACKES M., BAIXERAS C., BALESTRA S., BARRIO J.A., BARTKO H., BASTIERI D., BECERRA GONZALEZ J., BECKER J.K., BEDNAREK W., BERGER K., BERNARDINI E., BILAND A., BOCK R.K., BONNOLI G., BORDAS P., BORLA TRIDON D., BOSCH-RAMON V., BRETZ T., BRITVITCH I., CAMARA M., CARMONA E., CHILINGARIAN A., COMMICHAU S., CONTRERAS J.L., CORTINA J., COSTADO M.T., COVINO S., CURTEF V., DAZZI F., DE ANGELIS A., DE CEA DEL POZO E., DE LOS REYES R., DE LOTTO B., DE MARIA M., DE SABATA F., DELGADO MENDEZ C., DOMINGUEZ A., DORNER D., DORO M., ELSAESSER D., ERRANDO M., FERENC D., FERNANDEZ E., FIRPO R., FONSECA M.V., FONT L., GALANTE N., GARCIA LOPEZ R.J., GARCZARCZYK M., GAUG M., GOEBEL F., HADASCH D., HAYASHIDA M., HERRERO A., HOHNE-MONCH D., HOSE J., HSU C.C., HUBER S., JOGLER T., KRANICH D., LA BARBERA A., LAILLE A., LEONARDO E., LINDFORS E., LOMBARDI S., LOPEZ M., LORENZ E., MAJUMDAR P., MANEVA G., MANKUZHIYIL N., MANNHEIM K., MARASCHI L., MARIOTTI M., MARTINEZ M., MAZIN D., MEUCCI M., MEYER M., MIRANDA J.M., MIRZOYAN R., MOLDON J., MOLES M., MORALEJO A., NIETO D., NILSSON K., NINKOVIC J., OYA I., PAOLETTI R., PAREDES J.M., PASANEN M., PASCOLI D., PAUSS F., PEGNA R.G., PEREZ-TORRES M.A., PERSIC M., PERUZZO L., PRADA F., PRANDINI E., PUCHADES N., RAYMERS A., RHODE W., RIBO M., RICO J., RISSI M., ROBERT A., RUGAMER S., SAGGION A., SAITO T.Y., SALVATI M., SANCHEZ-CONDE M., SARTORI P., SATALECKA K., SCALZOTTO V., SCAPIN V., SCHWEIZER T., SHAYDUK M., SHINOZAKI K., SHORE S.N., SIDRO N., SIERPOWSKA-BARTOSIK A., SILLANPAA A., SITAREK J., SOBCZYNSKA D., SPANIER F., STAMERRA A., STARK L.S., TAKALO L., TAVECCHIO F., TEMNIKOV P., TESCARO D., TESHIMA M., TLUCZYKONT M., TORRES D.F., TURINI N., VANKOV H., VENTURINI A., VITALE V., WAGNER R.M., WITTEK W., ZABALZA V., ZANDANEL F., ZANIN R., ZAPATERO J., ACCIARI V., ALIU E., ARLEN T., BEILICKE M., BENBOW W., BRADBURY S.M., BUCKLEY J.H., BUGAEV V., BUTT Y., BYRUM K., CANNON A., CESARINI A., CHOW Y.C., CIUPIK L., COGAN P., COLIN P., CUI W., DANIEL M.K., DICKHERBER R., DUKE C., ERGIN T., FEGAN S.J., FINLEY J.P., FINNEGAN G., FORTIN P., FURNISS A., GALL D., GILLANDERS G.H., GUENETTE R., GYUK G., GRUBE J., HANNA D., HOLDER J., HORAN D., HUI C.M., HUMENSKY T.B., IMRAN A., KAARET P., KARLSSON N., KERTZMAN M., KIEDA D., KILDEA J., KONOPELKO A., KRAWCZYNSKI H., KRENNRICH F., LANG M.J., LEBOHEC S., MAIER G., McCANN A., McCUTCHEON M., MILOVANOVIC A., MORIARTY P., NAGAI T., ONG R.A., OTTE A.N., PANDEL D., PERKINS J.S., PICHEL A., POHL M., RAGAN K., REYES L.C., REYNOLDS P.T., ROACHE E., ROSE H.J., SCHROEDTER M., SEMBROSKI G.H., SMITH A.W., STEELE D., SWORDY S.P., THEILING M., TONER J.A., VALCARCEL L., VARLOTTA A., WAKELY S.P., WARD J.E., WEEKES T.C., WEINSTEIN A., WILLIAMS D.A., WISSEL S., WOOD M. and ZITZER B.

Abstract (from CDS):

We present optical, X-ray, high-energy ({lap}30 GeV) and very high energy ({gap}100 GeV; VHE) observations of the high-frequency peaked blazar Mrk 421 taken between 2008 May 24 and June 23. A high-energy γ-ray signal was detected by AGILE with between June 9 and 15, with F(E>100 MeV) = 42+14–12x10–8 photons/cm2/s. This flaring state is brighter than the average flux observed by EGRET by a factor of ∼3, but still consistent with the highest EGRET flux. In hard X-rays (20-60 keV) SuperAGILE resolved a five-day flare (June 9-15) peaking at ∼55 mCrab. SuperAGILE, RXTE/ASM and Swift/BAT data show a correlated flaring structure between soft and hard X-rays. Hints of the same flaring behavior are also detected in the simultaneous optical data provided by the GASP-WEBT. A Swift/XRT observation near the flaring maximum revealed the highest 2-10 keV flux ever observed from this source, of 2.6x10–9 erg/cm2/s (i.e. >100 mCrab). A peak synchrotron energy of ∼3 keV was derived, higher than typical values of ∼0.5-1 keV. VHE observations with MAGIC and VERITAS between June 6 and 8 showed the flux peaking in a bright state, well correlated with the X-rays. This extraordinary set of simultaneous data, covering a 12-decade spectral range, allowed for a deep analysis of the spectral energy distribution as well as of correlated light curves. The γ-ray flare can be interpreted within the framework of the synchrotron self-Compton model in terms of a rapid acceleration of leptons in the jet.

Abstract Copyright: ∼

Journal keyword(s): BL Lacertae objects: individual: Mrk 421 - gamma rays: observations - galaxies: jets - radiation mechanisms: non-thermal - X-rays: galaxies

Simbad objects: 2

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Number of rows : 2
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 Z 184-50 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2841 1
2 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2

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