Simultaneous multiwavelength observations of markarian 421 during outburst

V. A. Acciari; E. Aliu; T. Aune; M. Beilicke; W. Benbow; M. Böttcher; S. M. Bradbury; J. H. Buckley; V. Bugaev; Y. Butt; A. Cannon; O. Celik; A. Cesarini; Y. C. Chow; L. Ciupik; P. Cogan; P. Colin; W. Cui; R. Dickherber; C. Duke; A. D. Falcone; S. J. Fegan; J. P. Finley; G. Finnegan; P. Fortin; L. Fortson; A. Furniss; D. Gall; G. H. Gillanders; J. Grube; R. Guenette; G. Gyuk; D. Hanna; J. Holder; D. Horan; C. M. Hui; T. B. Humensky; P. Kaaret; N. Karlsson; M. Kertzman; D. Kieda; J. Kildea; A. Konopelko; H. Krawczynski; F. Krennrich; M. J. Lang; S. Lebohec; G. Maier; A. McCann; J. Millis; P. Moriarty; R. A. Ong; A. N. Otte; D. Pandel; J. S. Perkins; A. Pichel; M. Pohl; J. Quinn; K. Ragan; L. C. Reyes; P. T. Reynolds; E. Roache; H. J. Rose; M. Schroedter; G. H. Sembroski; A. W. Smith; D. Steele; S. P. Swordy; M. Theiling; J. A. Toner; A. Varlotta; S. Vincent; S. P. Wakely; J. E. Ward; T. C. Weekes; A. Weinstein; T. Weisgarber; D. A. Williams; S. Wissel; B. Zitzer; I. De La Calle Perez; A. Ibarra; P. Rodriguez H Anderhub; L. A. Antonelli; P. Antoranz; M. Backes; C. Baixeras; S. Balestra; J. A. Barrio; D. Bastieri; J. Becerra Gonzlez; J. K. Becker; W. Bednarek; K. Berger; E. Bernardini; A. Biland; R. K. Bock; G. Bonnoli; P. Bordas; D. Borla Tridon; V. Bosch-Ramon; D. Bose; I. Braun; T. Bretz; I. Britvitch; M. Camara; E. Carmona; A. Carosi; S. Commichau; J. L. Contreras; J. Cortina; M. T. Costado; S. Covino; V. Curtef; F. Dazzi; A. De Angelis; E. De Cea Del Pozo; C. Delgado Mendez; R. De Los Reyes; B. De Lotto; M. De Maria; F. De Sabata; A. Dominguez; D. Dorner; M. Doro; D. Elsaesser; M. Errando; D. Ferenc; E. Fernndez; R. Firpo; M. V. Fonseca; L. Font; N. Galante; R. J. García López; M. Garczarczyk; M. Gaug; F. Goebel; D. Hadasch; M. Hayashida; A. Herrero; D. Hildebrand; D. Höhne-Mönch; J. Hose; C. C. Hsu; T. Jogler; D. Kranich; A. La Barbera; A. Laille; E. Leonardo; E. Lindfors; S. Lombardi; F. Longo; M. López; E. Lorenz; P. Majumdar; G. Maneva; N. Mankuzhiyil; K. Mannheim; L. Maraschi; M. Mariotti; M. Martínez; D. Mazin; M. Meucci; J. M. Miranda; R. Mirzoyan; H. Miyamoto; J. Moldón; M. Moles; A. Moralejo; D. Nieto; K. Nilsson; J. Ninkovic; R. Orito; I. Oya; R. Paoletti; J. M. Paredes; M. Pasanen; D. Pascoli; F. Pauss; R. G. Pegna; M. A. Perez-Torres; M. Persic; L. Peruzzo; F. Prada; E. Prandini; N. Puchades; I. Reichardt; W. Rhode; M. Ribó; J. Rico; M. Rissi; A. Robert; S. Rügamer; A. Saggion; T. Y. Saito; M. Salvati; M. Sanchez-Conde; K. Satalecka; V. Scalzotto; V. Scapin; T. Schweizer; M. Shayduk; S. N. Shore; N. Sidro; A. Sierpowska-Bartosik; A. Sillanpää; J. Sitarek; D. Sobczynska; F. Spanier; S. Spiro; A. Stamerra; L. S. Stark; L. Takalo; F. Tavecchio; P. Temnikov; D. Tescaro; M. Teshima; M. Tluczykont; D. F. Torres; N. Turini; H. Vankov; R. M. Wagner; V. Zabalza; F. Zandanel; R. Zanin; J. Zapatero

doi:10.1088/0004-637X/703/1/169

Simultaneous multiwavelength observations of markarian 421 during outburst

V. A. Acciari, E. Aliu, T. Aune, M. Beilicke, W. Benbow, M. Böttcher, S. M. Bradbury, J. H. Buckley, V. Bugaev, Y. Butt, A. Cannon, O. Celik, A. Cesarini, Y. C. Chow, L. Ciupik, P. Cogan, P. Colin, W. Cui, R. Dickherber, C. DukeA. D. Falcone, S. J. Fegan, J. P. Finley, G. Finnegan, P. Fortin, L. Fortson, A. Furniss, D. Gall, G. H. Gillanders, J. Grube, R. Guenette, G. Gyuk, D. Hanna, J. Holder, D. Horan, C. M. Hui, T. B. Humensky, P. Kaaret, N. Karlsson, M. Kertzman, D. Kieda, J. Kildea, A. Konopelko, H. Krawczynski, F. Krennrich, M. J. Lang, S. Lebohec, G. Maier, A. McCann, J. Millis, P. Moriarty, R. A. Ong, A. N. Otte, D. Pandel, J. S. Perkins, A. Pichel, M. Pohl, J. Quinn, K. Ragan, L. C. Reyes, P. T. Reynolds, E. Roache, H. J. Rose, M. Schroedter, G. H. Sembroski, A. W. Smith, D. Steele, S. P. Swordy, M. Theiling, J. A. Toner, A. Varlotta, S. Vincent, S. P. Wakely, J. E. Ward, T. C. Weekes, A. Weinstein, T. Weisgarber, D. A. Williams, S. Wissel, B. Zitzer, I. De La Calle Perez, A. Ibarra, P. Rodriguez H Anderhub, L. A. Antonelli, P. Antoranz, M. Backes, C. Baixeras, S. Balestra, J. A. Barrio, D. Bastieri, J. Becerra Gonzlez, J. K. Becker, W. Bednarek, K. Berger, E. Bernardini, A. Biland, R. K. Bock, G. Bonnoli, P. Bordas, D. Borla Tridon, V. Bosch-Ramon, D. Bose, I. Braun, T. Bretz, I. Britvitch, M. Camara, E. Carmona, A. Carosi, S. Commichau, J. L. Contreras, J. Cortina, M. T. Costado, S. Covino, V. Curtef, F. Dazzi, A. De Angelis, E. De Cea Del Pozo, C. Delgado Mendez, R. De Los Reyes, B. De Lotto, M. De Maria, F. De Sabata, A. Dominguez, D. Dorner, M. Doro, D. Elsaesser, M. Errando, D. Ferenc, E. Fernndez, R. Firpo, M. V. Fonseca, L. Font, N. Galante, R. J. García López, M. Garczarczyk, M. Gaug, F. Goebel, D. Hadasch, M. Hayashida, A. Herrero, D. Hildebrand, D. Höhne-Mönch, J. Hose, C. C. Hsu, T. Jogler, D. Kranich, A. La Barbera, A. Laille, E. Leonardo, E. Lindfors, S. Lombardi, F. Longo, M. López, E. Lorenz, P. Majumdar, G. Maneva, N. Mankuzhiyil, K. Mannheim, L. Maraschi, M. Mariotti, M. Martínez, D. Mazin, M. Meucci, J. M. Miranda, R. Mirzoyan, H. Miyamoto, J. Moldón, M. Moles, A. Moralejo, D. Nieto, K. Nilsson, J. Ninkovic, R. Orito, I. Oya, R. Paoletti, J. M. Paredes, M. Pasanen, D. Pascoli, F. Pauss, R. G. Pegna, M. A. Perez-Torres, M. Persic, L. Peruzzo, F. Prada, E. Prandini, N. Puchades, I. Reichardt, W. Rhode, M. Ribó, J. Rico, M. Rissi, A. Robert, S. Rügamer, A. Saggion, T. Y. Saito, M. Salvati, M. Sanchez-Conde, K. Satalecka, V. Scalzotto, V. Scapin, T. Schweizer, M. Shayduk, S. N. Shore, N. Sidro, A. Sierpowska-Bartosik, A. Sillanpää, J. Sitarek, D. Sobczynska, F. Spanier, S. Spiro, A. Stamerra, L. S. Stark, L. Takalo, F. Tavecchio, P. Temnikov, D. Tescaro, M. Teshima, M. Tluczykont, D. F. Torres, N. Turini, H. Vankov, R. M. Wagner, V. Zabalza, F. Zandanel, R. Zanin, J. Zapatero

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

We report on the results of two coordinated multiwavelength campaigns that focused on the blazar Markarian 421 during its 2006 and 2008 outbursts. These campaigns obtained UV and X-ray data using the XMM-Newton satellite, while the gamma-ray data were obtained utilizing three imaging atmospheric Cerenkov telescopes, the Whipple 10 m telescope and VERITAS, both based in Arizona, as well as the MAGIC telescope, based on La Palma in the Canary Islands. The coordinated effort between the gamma-ray groups allowed for truly simultaneous data in UV/X-ray/gamma-ray wavelengths during a significant portion of the XMM-Newton observations. This simultaneous coverage allowed for a reliable search for correlations between UV, X-ray, and gamma-ray variability over the course of the observations. Investigations of spectral hysteresis and modeling of the spectral energy distributions are also presented.

Original language	English (US)
Pages (from-to)	169-178
Number of pages	10
Journal	Astrophysical Journal
Volume	703
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/703/1/169
State	Published - 2009

Keywords

Active
BL Lacertae objects
Galaxies
Gamma rays
Individual (Markarian 421)
Non-thermal
Observations
Radiation mechanisms
X-rays

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10.1088/0004-637X/703/1/169

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Acciari, V. A., Aliu, E., Aune, T., Beilicke, M., Benbow, W., Böttcher, M., Bradbury, S. M., Buckley, J. H., Bugaev, V., Butt, Y., Cannon, A., Celik, O., Cesarini, A., Chow, Y. C., Ciupik, L., Cogan, P., Colin, P., Cui, W., Dickherber, R., ... Zapatero, J. (2009). Simultaneous multiwavelength observations of markarian 421 during outburst. Astrophysical Journal, 703(1), 169-178. https://doi.org/10.1088/0004-637X/703/1/169

Acciari, VA, Aliu, E, Aune, T, Beilicke, M, Benbow, W, Böttcher, M, Bradbury, SM, Buckley, JH, Bugaev, V, Butt, Y, Cannon, A, Celik, O, Cesarini, A, Chow, YC, Ciupik, L, Cogan, P, Colin, P, Cui, W, Dickherber, R, Duke, C, Falcone, AD, Fegan, SJ, Finley, JP, Finnegan, G, Fortin, P, Fortson, L, Furniss, A, Gall, D, Gillanders, GH, Grube, J, Guenette, R, Gyuk, G, Hanna, D, Holder, J, Horan, D, Hui, CM, Humensky, TB, Kaaret, P, Karlsson, N, Kertzman, M, Kieda, D, Kildea, J, Konopelko, A, Krawczynski, H, Krennrich, F, Lang, MJ, Lebohec, S, Maier, G, McCann, A, Millis, J, Moriarty, P, Ong, RA, Otte, AN, Pandel, D, Perkins, JS, Pichel, A, Pohl, M, Quinn, J, Ragan, K, Reyes, LC, Reynolds, PT, Roache, E, Rose, HJ, Schroedter, M, Sembroski, GH, Smith, AW, Steele, D, Swordy, SP, Theiling, M, Toner, JA, Varlotta, A, Vincent, S, Wakely, SP, Ward, JE, Weekes, TC, Weinstein, A, Weisgarber, T, Williams, DA, Wissel, S, Zitzer, B, De La Calle Perez, I, Ibarra, A, Anderhub, PRH, Antonelli, LA, Antoranz, P, Backes, M, Baixeras, C, Balestra, S, Barrio, JA, Bastieri, D, Becerra Gonzlez, J, Becker, JK, Bednarek, W, Berger, K, Bernardini, E, Biland, A, Bock, RK, Bonnoli, G, Bordas, P, Borla Tridon, D, Bosch-Ramon, V, Bose, D, Braun, I, Bretz, T, Britvitch, I, Camara, M, Carmona, E, Carosi, A, Commichau, S, Contreras, JL, Cortina, J, Costado, MT, Covino, S, Curtef, V, Dazzi, F, De Angelis, A, De Cea Del Pozo, E, Delgado Mendez, C, De Los Reyes, R, De Lotto, B, De Maria, M, De Sabata, F, Dominguez, A, Dorner, D, Doro, M, Elsaesser, D, Errando, M, Ferenc, D, Fernndez, E, Firpo, R, Fonseca, MV, Font, L, Galante, N, García López, RJ, Garczarczyk, M, Gaug, M, Goebel, F, Hadasch, D, Hayashida, M, Herrero, A, Hildebrand, D, Höhne-Mönch, D, Hose, J, Hsu, CC, Jogler, T, Kranich, D, La Barbera, A, Laille, A, Leonardo, E, Lindfors, E, Lombardi, S, Longo, F, López, M, Lorenz, E, Majumdar, P, Maneva, G, Mankuzhiyil, N, Mannheim, K, Maraschi, L, Mariotti, M, Martínez, M, Mazin, D, Meucci, M, Miranda, JM, Mirzoyan, R, Miyamoto, H, Moldón, J, Moles, M, Moralejo, A, Nieto, D, Nilsson, K, Ninkovic, J, Orito, R, 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, Reichardt, I, Rhode, W, Ribó, M, Rico, J, Rissi, M, Robert, A, Rügamer, S, Saggion, A, Saito, TY, Salvati, M, Sanchez-Conde, M, Satalecka, K, Scalzotto, V, Scapin, V, Schweizer, T, Shayduk, M, Shore, SN, Sidro, N, Sierpowska-Bartosik, A, Sillanpää, A, Sitarek, J, Sobczynska, D, Spanier, F, Spiro, S, Stamerra, A, Stark, LS, Takalo, L, Tavecchio, F, Temnikov, P, Tescaro, D, Teshima, M, Tluczykont, M, Torres, DF, Turini, N, Vankov, H, Wagner, RM, Zabalza, V, Zandanel, F, Zanin, R & Zapatero, J 2009, 'Simultaneous multiwavelength observations of markarian 421 during outburst', Astrophysical Journal, vol. 703, no. 1, pp. 169-178. https://doi.org/10.1088/0004-637X/703/1/169

@article{3cf40d00907a4f4582e44c222de23244,

title = "Simultaneous multiwavelength observations of markarian 421 during outburst",

abstract = "We report on the results of two coordinated multiwavelength campaigns that focused on the blazar Markarian 421 during its 2006 and 2008 outbursts. These campaigns obtained UV and X-ray data using the XMM-Newton satellite, while the gamma-ray data were obtained utilizing three imaging atmospheric Cerenkov telescopes, the Whipple 10 m telescope and VERITAS, both based in Arizona, as well as the MAGIC telescope, based on La Palma in the Canary Islands. The coordinated effort between the gamma-ray groups allowed for truly simultaneous data in UV/X-ray/gamma-ray wavelengths during a significant portion of the XMM-Newton observations. This simultaneous coverage allowed for a reliable search for correlations between UV, X-ray, and gamma-ray variability over the course of the observations. Investigations of spectral hysteresis and modeling of the spectral energy distributions are also presented.",

keywords = "Active, BL Lacertae objects, Galaxies, Gamma rays, Individual (Markarian 421), Non-thermal, Observations, Radiation mechanisms, X-rays",

author = "Acciari, {V. A.} and E. Aliu and T. Aune and M. Beilicke and W. Benbow and M. B{\"o}ttcher and Bradbury, {S. M.} and Buckley, {J. H.} and V. Bugaev and Y. Butt and A. Cannon and O. Celik and A. Cesarini and Chow, {Y. C.} and L. Ciupik and P. Cogan and P. Colin and W. Cui and R. Dickherber and C. Duke and Falcone, {A. D.} and Fegan, {S. J.} and Finley, {J. P.} and G. Finnegan and P. Fortin and L. Fortson and A. Furniss and D. Gall and Gillanders, {G. H.} and J. Grube and R. Guenette and G. Gyuk and D. Hanna and J. Holder and D. Horan and Hui, {C. M.} and Humensky, {T. B.} and P. Kaaret and N. Karlsson and M. Kertzman and D. Kieda and J. Kildea and A. Konopelko and H. Krawczynski and F. Krennrich and Lang, {M. J.} and S. Lebohec and G. Maier and A. McCann and J. Millis and P. Moriarty and Ong, {R. A.} and Otte, {A. N.} and D. Pandel and Perkins, {J. S.} and A. Pichel and M. Pohl and J. Quinn and K. Ragan and Reyes, {L. C.} and Reynolds, {P. T.} and E. Roache and Rose, {H. J.} and M. Schroedter and Sembroski, {G. H.} and Smith, {A. W.} and D. Steele and Swordy, {S. P.} and M. Theiling and Toner, {J. A.} and A. Varlotta and S. Vincent and Wakely, {S. P.} and Ward, {J. E.} and Weekes, {T. C.} and A. Weinstein and T. Weisgarber and Williams, {D. A.} and S. Wissel and B. Zitzer and {De La Calle Perez}, I. and A. Ibarra and Anderhub, {P. Rodriguez H} and Antonelli, {L. A.} and P. Antoranz and M. Backes and C. Baixeras and S. Balestra and Barrio, {J. A.} and D. Bastieri and {Becerra Gonzlez}, J. and Becker, {J. K.} and W. Bednarek and K. Berger and E. Bernardini and A. Biland and Bock, {R. K.} and G. Bonnoli and P. Bordas and {Borla Tridon}, D. and V. Bosch-Ramon and D. Bose and I. Braun and T. Bretz and I. Britvitch and M. Camara and E. Carmona and A. Carosi and S. Commichau and Contreras, {J. L.} and J. Cortina and Costado, {M. T.} and S. Covino and V. Curtef and F. Dazzi and {De Angelis}, A. and {De Cea Del Pozo}, E. and {Delgado Mendez}, C. and {De Los Reyes}, R. and {De Lotto}, B. and {De Maria}, M. and {De Sabata}, F. and A. Dominguez and D. Dorner and M. Doro and D. Elsaesser and M. Errando and D. Ferenc and E. Fernndez and R. Firpo and Fonseca, {M. V.} and L. Font and N. Galante and {Garc{\'i}a L{\'o}pez}, {R. J.} and M. Garczarczyk and M. Gaug and F. Goebel and D. Hadasch and M. Hayashida and A. Herrero and D. Hildebrand and D. H{\"o}hne-M{\"o}nch and J. Hose and Hsu, {C. C.} and T. Jogler and D. Kranich and {La Barbera}, A. and A. Laille and E. Leonardo and E. Lindfors and S. Lombardi and F. Longo and M. L{\'o}pez and E. Lorenz and P. Majumdar and G. Maneva and N. Mankuzhiyil and K. Mannheim and L. Maraschi and M. Mariotti and M. Mart{\'i}nez and D. Mazin and M. Meucci and Miranda, {J. M.} and R. Mirzoyan and H. Miyamoto and J. Mold{\'o}n and M. Moles and A. Moralejo and D. Nieto and K. Nilsson and J. Ninkovic and R. Orito and I. Oya and R. Paoletti and Paredes, {J. M.} and M. Pasanen and D. Pascoli and F. Pauss and Pegna, {R. G.} and Perez-Torres, {M. A.} and M. Persic and L. Peruzzo and F. Prada and E. Prandini and N. Puchades and I. Reichardt and W. Rhode and M. Rib{\'o} and J. Rico and M. Rissi and A. Robert and S. R{\"u}gamer and A. Saggion and Saito, {T. Y.} and M. Salvati and M. Sanchez-Conde and K. Satalecka and V. Scalzotto and V. Scapin and T. Schweizer and M. Shayduk and Shore, {S. N.} and N. Sidro and A. Sierpowska-Bartosik and A. Sillanp{\"a}{\"a} and J. Sitarek and D. Sobczynska and F. Spanier and S. Spiro and A. Stamerra and Stark, {L. S.} and L. Takalo and F. Tavecchio and P. Temnikov and D. Tescaro and M. Teshima and M. Tluczykont and Torres, {D. F.} and N. Turini and H. Vankov and Wagner, {R. M.} and V. Zabalza and F. Zandanel and R. Zanin and J. Zapatero",

year = "2009",

doi = "10.1088/0004-637X/703/1/169",

language = "English (US)",

volume = "703",

pages = "169--178",

journal = "Astrophysical Journal",

issn = "0004-637X",

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number = "1",

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TY - JOUR

T1 - Simultaneous multiwavelength observations of markarian 421 during outburst

AU - Acciari, V. A.

AU - Aliu, E.

AU - Aune, T.

AU - Beilicke, M.

AU - Benbow, W.

AU - Böttcher, M.

AU - Bradbury, S. M.

AU - Buckley, J. H.

AU - Bugaev, V.

AU - Butt, Y.

AU - Cannon, A.

AU - Celik, O.

AU - Cesarini, A.

AU - Chow, Y. C.

AU - Ciupik, L.

AU - Cogan, P.

AU - Colin, P.

AU - Cui, W.

AU - Dickherber, R.

AU - Duke, C.

AU - Falcone, A. D.

AU - Fegan, S. J.

AU - Finley, J. P.

AU - Finnegan, G.

AU - Fortin, P.

AU - Fortson, L.

AU - Furniss, A.

AU - Gall, D.

AU - Gillanders, G. H.

AU - Grube, J.

AU - Guenette, R.

AU - Gyuk, G.

AU - Hanna, D.

AU - Holder, J.

AU - Horan, D.

AU - Hui, C. M.

AU - Humensky, T. B.

AU - Kaaret, P.

AU - Karlsson, N.

AU - Kertzman, M.

AU - Kieda, D.

AU - Kildea, J.

AU - Konopelko, A.

AU - Krawczynski, H.

AU - Krennrich, F.

AU - Lang, M. J.

AU - Lebohec, S.

AU - Maier, G.

AU - McCann, A.

AU - Millis, J.

AU - Moriarty, P.

AU - Ong, R. A.

AU - Otte, A. N.

AU - Pandel, D.

AU - Perkins, J. S.

AU - Pichel, A.

AU - Pohl, M.

AU - Quinn, J.

AU - Ragan, K.

AU - Reyes, L. C.

AU - Reynolds, P. T.

AU - Roache, E.

AU - Rose, H. J.

AU - Schroedter, M.

AU - Sembroski, G. H.

AU - Smith, A. W.

AU - Steele, D.

AU - Swordy, S. P.

AU - Theiling, M.

AU - Toner, J. A.

AU - Varlotta, A.

AU - Vincent, S.

AU - Wakely, S. P.

AU - Ward, J. E.

AU - Weekes, T. C.

AU - Weinstein, A.

AU - Weisgarber, T.

AU - Williams, D. A.

AU - Wissel, S.

AU - Zitzer, B.

AU - De La Calle Perez, I.

AU - Ibarra, A.

AU - Anderhub, P. Rodriguez H

AU - Antonelli, L. A.

AU - Antoranz, P.

AU - Backes, M.

AU - Baixeras, C.

AU - Balestra, S.

AU - Barrio, J. A.

AU - Bastieri, D.

AU - Becerra Gonzlez, J.

AU - Becker, J. K.

AU - Bednarek, W.

AU - Berger, K.

AU - Bernardini, E.

AU - Biland, A.

AU - Bock, R. K.

AU - Bonnoli, G.

AU - Bordas, P.

AU - Borla Tridon, D.

AU - Bosch-Ramon, V.

AU - Bose, D.

AU - Braun, I.

AU - Bretz, T.

AU - Britvitch, I.

AU - Camara, M.

AU - Carmona, E.

AU - Carosi, A.

AU - Commichau, S.

AU - Contreras, J. L.

AU - Cortina, J.

AU - Costado, M. T.

AU - Covino, S.

AU - Curtef, V.

AU - Dazzi, F.

AU - De Angelis, A.

AU - De Cea Del Pozo, E.

AU - Delgado Mendez, C.

AU - De Los Reyes, R.

AU - De Lotto, B.

AU - De Maria, M.

AU - De Sabata, F.

AU - Dominguez, A.

AU - Dorner, D.

AU - Doro, M.

AU - Elsaesser, D.

AU - Errando, M.

AU - Ferenc, D.

AU - Fernndez, E.

AU - Firpo, R.

AU - Fonseca, M. V.

AU - Font, L.

AU - Galante, N.

AU - García López, R. J.

AU - Garczarczyk, M.

AU - Gaug, M.

AU - Goebel, F.

AU - Hadasch, D.

AU - Hayashida, M.

AU - Herrero, A.

AU - Hildebrand, D.

AU - Höhne-Mönch, D.

AU - Hose, J.

AU - Hsu, C. C.

AU - Jogler, T.

AU - Kranich, D.

AU - La Barbera, A.

AU - Laille, A.

AU - Leonardo, E.

AU - Lindfors, E.

AU - Lombardi, S.

AU - Longo, F.

AU - López, M.

AU - Lorenz, E.

AU - Majumdar, P.

AU - Maneva, G.

AU - Mankuzhiyil, N.

AU - Mannheim, K.

AU - Maraschi, L.

AU - Mariotti, M.

AU - Martínez, M.

AU - Mazin, D.

AU - Meucci, M.

AU - Miranda, J. M.

AU - Mirzoyan, R.

AU - Miyamoto, H.

AU - Moldón, J.

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PY - 2009

Y1 - 2009

N2 - We report on the results of two coordinated multiwavelength campaigns that focused on the blazar Markarian 421 during its 2006 and 2008 outbursts. These campaigns obtained UV and X-ray data using the XMM-Newton satellite, while the gamma-ray data were obtained utilizing three imaging atmospheric Cerenkov telescopes, the Whipple 10 m telescope and VERITAS, both based in Arizona, as well as the MAGIC telescope, based on La Palma in the Canary Islands. The coordinated effort between the gamma-ray groups allowed for truly simultaneous data in UV/X-ray/gamma-ray wavelengths during a significant portion of the XMM-Newton observations. This simultaneous coverage allowed for a reliable search for correlations between UV, X-ray, and gamma-ray variability over the course of the observations. Investigations of spectral hysteresis and modeling of the spectral energy distributions are also presented.

AB - We report on the results of two coordinated multiwavelength campaigns that focused on the blazar Markarian 421 during its 2006 and 2008 outbursts. These campaigns obtained UV and X-ray data using the XMM-Newton satellite, while the gamma-ray data were obtained utilizing three imaging atmospheric Cerenkov telescopes, the Whipple 10 m telescope and VERITAS, both based in Arizona, as well as the MAGIC telescope, based on La Palma in the Canary Islands. The coordinated effort between the gamma-ray groups allowed for truly simultaneous data in UV/X-ray/gamma-ray wavelengths during a significant portion of the XMM-Newton observations. This simultaneous coverage allowed for a reliable search for correlations between UV, X-ray, and gamma-ray variability over the course of the observations. Investigations of spectral hysteresis and modeling of the spectral energy distributions are also presented.

KW - Active

KW - BL Lacertae objects

KW - Galaxies

KW - Gamma rays

KW - Individual (Markarian 421)

KW - Non-thermal

KW - Observations

KW - Radiation mechanisms

KW - X-rays

UR - http://www.scopus.com/inward/record.url?scp=70449806023&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70449806023&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/703/1/169

DO - 10.1088/0004-637X/703/1/169

M3 - Article

AN - SCOPUS:70449806023

SN - 0004-637X

VL - 703

SP - 169

EP - 178

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

Simultaneous multiwavelength observations of markarian 421 during outburst

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