TY - JOUR AU - Antoranz Canales, Pedro AU - Barrio Uña, Juan Abel AU - Bonnefoy, Simon Francois Albert AU - Contreras González, José Luis AU - Fonseca González, María Victoria AU - López Moya, Marcos AU - Miranda Pantoja, José Miguel AU - Nievas Rosillo, Mireia AU - Satalecka, Konstanzja AU - Scapin, Valeria PY - 2016 DO - 10.3847/0004-637X/819/2/156 SN - 0004-637X UR - https://hdl.handle.net/20.500.14352/24455 T2 - Astrophysical journal AB - We present coordinated multiwavelength observations of the bright, nearby BL Lacertae object Mrk 421 taken in 2013 January–March, involving GASP-WEBT, Swift, NuSTAR, Fermi-LAT, MAGIC, VERITAS, and other collaborations and instruments, providing data... LA - eng PB - American Astronomical Society KW - Active galactic nuclei KW - Large-area telescope KW - BL Lacertae objects KW - Particle-acceleration KW - LAC objects KW - Correlated variability KW - TEV blazars KW - Electron acceleration KW - Magnetic reconnection KW - Background-radiation. TI - Multiwavelength study of quiescent states of MrK 421 with unprecedented hard x-Ray coverage provided by NuStar in 2013 TY - journal article VL - 819 ER -