TY - JOUR AU - Antoranz Canales, Pedro AU - Barrio Uña, Juan Abel AU - Contreras González, José Luis AU - Fonseca González, María Victoria AU - Miranda Pantoja, José Miguel AU - Nieto Castaño, Daniel PY - 2009 DO - 10.1088/0004-637X/703/1/169 SN - 0004-637X UR - https://hdl.handle.net/20.500.14352/43954 T2 - Astrophysical journal 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... LA - eng M2 - 169 PB - IOP Publishing KW - Active Galaxy Markarian-421 KW - Ray Spectral Variability KW - XMM-Newton KW - Correlated Variability KW - Magic Telescope KW - Galactic Nuclei KW - TEV Photons KW - Gamma-Rays KW - Energy KW - Radiation. TI - Simultaneous multiwavelength observations of Markarian 421 during outburst TY - journal article VL - 703 ER -