Multiwavelength observations of a TeV-Flare from W Comae

la Calle Perez, I.; Veritas, Collaboration; Team, Agile; Sabatini P. Soffitta, S.; Cannon, A.; Cesarini, A.; Ciupik, L.; Cui, W.; Dickherber, R.; Duke, C.; Cogan, P.; Falcone, A.; Finley, J.~P P.; Fortin, P.; Fortson, L.; Soffitta, S.~S.~P; Furniss, A.; Galante, N.; Gall, D.; Gibbs, K.; Gillanders, Gary H.; Grube, J.; Guenette, R.; Gyuk, G.; Reynolds, P.~T T.; Hanna, D.; Pian, E.; Roache, E.; Holder, J.; Rose, H.~J J.; Acciari, V.~A A.; Hui, C.~M M.; Aliu, E.; Sembroski, G.~H H.; Humensky, T.~B B.; Aune, T.; Smith, A.~W W.; Kaaret, P.; Karlsson, N.; Steele, D.; Beilicke, M.; Kertzman, M.; Theiling, M.; Kieda, D.; Benbow, W.; Buckley, J.~H H.; Thibadeau, S.; Konopelko, A.; Varlotta, A.; Böttcher, M.; Krawczynski, H.; Bradbury, S.~M M.; Vassiliev, V. V.; Krennrich, F.; Boltuch, D.; Vincent, S.; Lang, Mark J.; Byrum, K.; LeBohec, S.; Wakely, S.~P P.; Pian, Agile Team: E; Ward, J.~E E.; McCann, A.; Bugaev, V.; McCutcheon, M.; Weekes, T.~C C.; Millis, J.; Moriarty, P.; Weinstein, A.; Ong, R.~A A.; Maier, G.; Weisgarber, T.; Otte, A.~N N.; Pandel, D.; Williams, D.~A A.; McArthur, S.; Perkins, J.~S S.; Wissel, S.; Pichel, A.; Wood, M.; Pohl, M.; Quinn, J.; Vercellone, S.; Ragan, K.; Reyes, L.~C C.; Paris, G. D.; Vittorini, V.; Tavani, M.; Donnarumma, I.; D'Ammando, F.; Chen, A.~W W.; Giuliani, A.; Longo, F.; Pacciani, L.; Pucella, G.; Cattaneo, P.~W W.; Cocco, V.; Costa, E.; Rubini, A.; Caraveo, P.; Monte, E. Del; Soffitta, S. Sabatini P.; De Paris, G.; Trifoglio, M.; Cocco, G. Di; Trois, A.; Evangelista, Y.; Feroci, M.; Vallazza, E.; Bulgarelli, A.; Fiorini, M.; Zambra, A.; Froysland, T.; Zanello, D.; Frutti, M.; Fuschino, F.; Galli, M.; Mereghetti, S.; Santolamazza, P.; Perez, I. D.; Gianotti, F.; Argan, A.; Labanti, C.; Verrecchia, F.; Lapshov, I.; Barbiellini, G.; Lazzarotto, F.; Salotti, L.; Lipari, P.; Marisaldi, M.; Villata, M.; Mastropietro, M.; Morelli, E.; Morselli, A.; Pellizzoni, A.; Perotti, F.; Piano, G.; Picozza, P.; Tetradze, S.~D D.; Pilia, M.; Porrovecchio, G.; Del Monte, E.; Prest, M.; Rapisarda, M.; Romano, P.; Rappoldi, A.; Pittori, C.; Di Cocco, G.; Giommi, P.; Colafrancesco, S.; Sorcia, M.; Raiteri, C.~M M.; Efimova, N. V.; Larionov, V.~M M.; Leto, P.; Ligustri, R.; Lindfors, E.; Aller, H.~D D.; Pasanen, M.; Aller, M.~F F.; Kurtanidze, O.~M M.; Arkharov, A.~A A.; Lahteenmaki, A.; Nilsson, K.; Kotiranta, M.; Heidt, J.; Cucchiara, A.; Nesci, R.; Pursimo, T.; Hiriart, D.; Mujica, R.; Dultzin, D.; Benitez, E.; Lopez, J.~M M.; Bottcher, M.; Berdyugin, A.; Mommert, M.; :.,

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C. M. Hui
la Calle Perez et al., 2009

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American Astronomical Society, Astrophysical Journal, 1(707), p. 612-620, 2009

DOI: 10.1088/0004-637x/707/1/612

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@article{la Calle Perez2009,
  abstract = {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 June 2008. The very high energy gamma-ray signal was detected by VERITAS on 2008 June 7-8 with a flux F(&gt;200 GeV) = (5.7+-0.6)x10^-11 cm-2s-1, 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, E&gt;100 MeV), and 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 (SED) of the source from contemporaneous data taken throughout the flare. Comment: 26 pages, 5 figures; Accepted for publication by The Astrophysical Journal},
  author = {la Calle Perez, I. and Veritas, Collaboration and Team, Agile and Sabatini P. Soffitta, S. and Cannon, A. and Cesarini, A. and Ciupik, L. and Cui, W. and Dickherber, R. and Duke, C. and Cogan, P. and Falcone, A. and Finley, J.~P P. and Fortin, P. and Fortson, L. and Soffitta, S.~S.~P and Furniss, A. and Galante, N. and Gall, D. and Gibbs, K. and Gillanders, Gary H. and Grube, J. and Guenette, R. and Gyuk, G. and Reynolds, P.~T T. and Hanna, D. and Pian, E. and Roache, E. and Holder, J. and Rose, H.~J J. and Acciari, V.~A A. and Hui, C.~M M. and Aliu, E. and Sembroski, G.~H H. and Humensky, T.~B B. and Aune, T. and Smith, A.~W W. and Kaaret, P. and Karlsson, N. and Steele, D. and Beilicke, M. and Kertzman, M. and Theiling, M. and Kieda, D. and Benbow, W. and Buckley, J.~H H. and Thibadeau, S. and Konopelko, A. and Varlotta, A. and Böttcher, M. and Krawczynski, H. and Bradbury, S.~M M. and Vassiliev, V. V. and Krennrich, F. and Boltuch, D. and Vincent, S. and Lang, Mark J. and Byrum, K. and LeBohec, S. and Wakely, S.~P P. and Pian, Agile Team: E and Ward, J.~E E. and McCann, A. and Bugaev, V. and McCutcheon, M. and Weekes, T.~C C. and Millis, J. and Moriarty, P. and Weinstein, A. and Ong, R.~A A. and Maier, G. and Weisgarber, T. and Otte, A.~N N. and Pandel, D. and Williams, D.~A A. and McArthur, S. and Perkins, J.~S S. and Wissel, S. and Pichel, A. and Wood, M. and Pohl, M. and Quinn, J. and Vercellone, S. and Ragan, K. and Reyes, L.~C C. and Paris, G. D. and Vittorini, V. and Tavani, M. and Donnarumma, I. and D'Ammando, F. and Chen, A.~W W. and Giuliani, A. and Longo, F. and Pacciani, L. and Pucella, G. and Cattaneo, P.~W W. and Cocco, V. and Costa, E. and Rubini, A. and Caraveo, P. and Monte, E. Del and Soffitta, S. Sabatini P. and De Paris, G. and Trifoglio, M. and Cocco, G. Di and Trois, A. and Evangelista, Y. and Feroci, M. and Vallazza, E. and Bulgarelli, A. and Fiorini, M. and Zambra, A. and Froysland, T. and Zanello, D. and Frutti, M. and Fuschino, F. and Galli, M. and Mereghetti, S. and Santolamazza, P. and Perez, I. D. and Gianotti, F. and Argan, A. and Labanti, C. and Verrecchia, F. and Lapshov, I. and Barbiellini, G. and Lazzarotto, F. and Salotti, L. and Lipari, P. and Marisaldi, M. and Villata, M. and Mastropietro, M. and Morelli, E. and Morselli, A. and Pellizzoni, A. and Perotti, F. and Piano, G. and Picozza, P. and Tetradze, S.~D D. and Pilia, M. and Porrovecchio, G. and Del Monte, E. and Prest, M. and Rapisarda, M. and Romano, P. and Rappoldi, A. and Pittori, C. and Di Cocco, G. and Giommi, P. and Colafrancesco, S. and Sorcia, M. and Raiteri, C.~M M. and Efimova, N. V. and Larionov, V.~M M. and Leto, P. and Ligustri, R. and Lindfors, E. and Aller, H.~D D. and Pasanen, M. and Aller, M.~F F. and Kurtanidze, O.~M M. and Arkharov, A.~A A. and Lahteenmaki, A. and Nilsson, K. and Kotiranta, M. and Heidt, J. and Cucchiara, A. and Nesci, R. and Pursimo, T. and Hiriart, D. and Mujica, R. and Dultzin, D. and Benitez, E. and Lopez, J.~M M. and Bottcher, M. and Berdyugin, A. and Mommert, M. and :., },
  doi = {10.1088/0004-637x/707/1/612},
  journal = {Astrophysical Journal},
  month = {jan},
  pages = {612-620},
  title = {Multiwavelength observations of a TeV-Flare from W Comae},
  url = {https://doi.org/10.1088/0004-637x/707/1/612},
  volume = {707},
  year = {2009}
}

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Multiwavelength observations of a TeV-Flare from W Comae

Journal article published in 2009 by I. la Calle Perez, Collaboration Veritas, Agile Team, S. Sabatini P. Soffitta, A. Cannon, A. Cesarini, L. Ciupik, W. Cui, R. Dickherber, C. Duke, P. Cogan, A. Falcone, J.~P P. Finley, P. Fortin, L. Fortson and other authors. I. la Calle Perez, Collaboration Veritas, Agile Team, S. Sabatini P. Soffitta, A. Cannon, A. Cesarini, L. Ciupik, W. Cui, R. Dickherber, C. Duke, P. Cogan, A. Falcone, J.~P P. Finley, P. Fortin, L. Fortson, S.~S.~P Soffitta, A. Furniss, N. Galante, D. Gall, K. Gibbs, Gary H. Gillanders, J. Grube, R. Guenette, G. Gyuk, P.~T T. Reynolds, D. Hanna, E. Pian, E. Roache, J. Holder, H.~J J. Rose, V.~A A. Acciari, C.~M M. Hui

, E. Aliu, G.~H H. Sembroski, T.~B B. Humensky, T. Aune, A.~W W. Smith, P. Kaaret, N. Karlsson, D. Steele, M. Beilicke, M. Kertzman, M. Theiling, D. Kieda, W. Benbow, J.~H H. Buckley, S. Thibadeau, A. Konopelko, A. Varlotta, M. Böttcher, H. Krawczynski

, S.~M M. Bradbury, V. V. Vassiliev, F. Krennrich, D. Boltuch, S. Vincent, Mark J. Lang, K. Byrum, S. LeBohec, S.~P P. Wakely, Agile Team: E Pian, J.~E E. Ward, A. McCann, V. Bugaev, M. McCutcheon, T.~C C. Weekes, J. Millis, P. Moriarty, A. Weinstein, R.~A A. Ong, G. Maier, T. Weisgarber, A.~N N. Otte, D. Pandel, D.~A A. Williams, S. McArthur, J.~S S. Perkins, S. Wissel, A. Pichel, M. Wood, M. Pohl, J. Quinn

, S. Vercellone, K. Ragan, L.~C C. Reyes, G. D. Paris, V. Vittorini, M. Tavani, I. Donnarumma

, F. D'Ammando, A.~W W. Chen

, A. Giuliani

, F. Longo, L. Pacciani, G. Pucella, P.~W W. Cattaneo, V. Cocco, E. Costa

, A. Rubini, P. Caraveo, E. Del Monte, S. Sabatini P. Soffitta

, G. De Paris, M. Trifoglio, G. Di Cocco, A. Trois, Y. Evangelista

, M. Feroci, E. Vallazza, A. Bulgarelli

, M. Fiorini, A. Zambra, T. Froysland, D. Zanello, M. Frutti, F. Fuschino, M. Galli

, S. Mereghetti, P. Santolamazza, I. D. Perez, F. Gianotti, A. Argan

, C. Labanti

, F. Verrecchia, I. Lapshov, G. Barbiellini, F. Lazzarotto, L. Salotti, P. Lipari, M. Marisaldi, M. Villata, M. Mastropietro, E. Morelli, A. Morselli, A. Pellizzoni

, F. Perotti, G. Piano

, P. Picozza, S.~D D. Tetradze, M. Pilia, G. Porrovecchio, E. Del Monte, M. Prest, M. Rapisarda, P. Romano, A. Rappoldi, C. Pittori, G. Di Cocco, P. Giommi, S. Colafrancesco, M. Sorcia, C.~M M. Raiteri, N. V. Efimova

, V.~M M. Larionov, P. Leto

, R. Ligustri, E. Lindfors, H.~D D. Aller, M. Pasanen, M.~F F. Aller, O.~M M. Kurtanidze, A.~A A. Arkharov, A. Lahteenmaki, K. Nilsson, M. Kotiranta, J. Heidt, A. Cucchiara, R. Nesci, T. Pursimo, D. Hiriart, R. Mujica, D. Dultzin, E. Benitez, J.~M M. Lopez, M. Bottcher, A. Berdyugin, M. Mommert, :.

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Abstract

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 June 2008. 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 cm-2s-1, 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, E>100 MeV), and 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 (SED) of the source from contemporaneous data taken throughout the flare. Comment: 26 pages, 5 figures; Accepted for publication by The Astrophysical Journal

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Multiwavelength observations of a TeV-Flare from W Comae

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