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Title: | THE JUNE 2008 FLARE OF MARKARIAN 421 FROM OPTICAL TO TeV ENERGIES |
Authors: | Donnarumma,I;Vittorini,V;Vercellone,S;Del Monte,E;Feroci,M;D'Ammando,F;Pacciani,L;Chen,AW;Tavani,M;Bulgarelli,A;Giuliani,A;Longo,F;Pucella,G;Argan,A;Barbiellini,G;Boffelli,F;Caraveo,P;Cattaneo,PW;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,CM;Chen,WP;Efimova,NV;Jordan,B;Konstantinova,TS;Koptelova,E;Kurtanidze,OM;Larionov,VM;Ros,JA;Sadun,AC;Anderhub,H;Antonelli,LA;Antoranz,P;Backes,M;Baixeras,C;Balestra,S;Barrio,JA;Bartko,H;Bastieri,D;Gonzalez,JB;Becker,JK;Bednarek,W;Berger,K;Bernardini,E;Biland,A;Bock,RK;Bonnoli,G;Bordas,P;Tridon,DB;Bosch-Ramon,V;Bretz,T;Britvitch,I;Camara,M;Carmona,E;Chilingarian,A;Commichau,S;Contreras,JL;Cortina,J;Costado,MT;Covino,S;Curtef,V;Dazzi,F;De Angelis,A;Del Pozo,ED;Reyes,RD;De Lotto,B;De Maria,M;De Sabata,F;Mendez,CD;Dominguez,A;Dorner,D;Doro,M;Elsaesser,D;Errando,M;Ferenc,D;Fernandez,E;Firpo,R;Fonseca,MV;Font,L;Galante,N;Lopez,RJG;Garczarczyk,M;Gaug,M;Goebel,F;Hadasch,D;Hayashida,M;Herrero,A;Hohne-Monch,D;Hose,J;Hsu,CC;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,JM;Mirzoyan,R;Moldon,J;Moles,M;Moralejo,A;Nieto,D;Nilsson,K;Ninkovic,J;Oya,I;Paoletti,R;Paredes,JM;Pasanen,M;Pascoli,D;Pauss,F;Pegna,RG;Perez-Torres,MA;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,TY;Salvati,M;Sanchez-Conde,M;Sartori,P;Satalecka,K;Scalzotto,V;Scapin,V;Schweizer,T;Shayduk,M;Shinozaki,K;Shore,SN;Sidro,N;Sierpowska-Bartosik,A;Sillanpaa,A;Sitarek,J;Sobczynska,D;Spanier,F;Stamerra,A;Stark,LS;Takalo,L;Tavecchio,F;Temnikov,P;Tescaro,D;Teshima,M;Tluczykont,M;Torres,DF;Turini,N;Vankov,H;Venturini,A;Vitale,V;Wagner,RM;Wittek,W;Zabalza,V;Zandanel,F;Zanin,R;Zapatero,J;Acciari,V;Aliu,E;Arlen,T;Beilicke,M;Benbow,W;Bradbury,SM;Buckley,JH;Bugaev,V;Butt,Y;Byrum,K;Cannon,A;Cesarini,A;Chow,YC;Ciupik,L;Cogan,P;Colin,P;Cui,W;Daniel,MK;Dickherber,R;Duke,C;Ergin,T;Fegan,SJ;Finley,JP;Finnegan,G;Fortin,P;Furniss,A;Gall,D;Gillanders,GH;Guenette,R;Gyuk,G;Grube,J;Hanna,D;Holder,J;Horan,D;Hui,CM;Humensky,TB;Imran,A;Kaaret,P;Karlsson,N;Kertzman,M;Kieda,D;Kildea,J;Konopelko,A;Krawczynski,H;Krennrich,F;Lang,MJ;LeBohec,S;Maier,G;McCann,A;McCutcheon,M;Milovanovic,A;Moriarty,P;Nagai,T;Ong,RA;Otte,AN;Pandel,D;Perkins,JS;Pichel,A;Pohl,M;Ragan,K;Reyes,LC;Reynolds,PT;Roache,E;Rose,HJ;Schroedter,M;Sembroski,GH;Smith,AW;Steele,D;Swordy,SP;Theiling,M;Toner,JA;Valcarcel,L;Varlotta,A;Wakely,SP;Ward,JE;Weekes,TC;Weinstein,A;Williams,DA;Wissel,S;Wood,M;Zitzer,B |
Contributors: | 天文研究所 |
Keywords: | BL-LACERTAE OBJECTS;X-RAY-SPECTRA;MAGIC TELESCOPE;LAC OBJECTS;GAMMA-RAYS;XMM-NEWTON;BLAZARS;WEBT;OUTBURST;CAMPAIGN |
Date: | 2009 |
Issue Date: | 2010-06-29 19:35:20 (UTC+8) |
Publisher: | 中央大學 |
Abstract: | We present optical, X-ray, high-energy ((sic) 30 GeV) and very high energy ((sic) 100 GeV; VHE) observations of the high-frequency peaked blazar Mrk 421 taken between 2008 May 24 and June 23. A high-energy gamma-ray signal was detected by AGILE with root TS = 4.5 between June 9 and 15, with F(E > 100 MeV) = 42(-12)(+14) x 10(-8) photons cm(-2) s(-1). This flaring state is brighter than the average flux observed by EGRET by a factor of similar to 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 similar to 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 2.6 x 10(-9) erg cm(-2) s(-1) (i.e. > 100 mCrab). A peak synchrotron energy of similar to 3 keV was derived, higher than typical values of similar to 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 gamma-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. |
Relation: | ASTROPHYSICAL JOURNAL LETTERS |
Appears in Collections: | [天文研究所] 期刊論文
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