TY  - JOUR
AU  - Barrio Uña, Juan Abel
AU  - Bonnefoy, Simon Francois Albert
AU  - Contreras González, José Luis
AU  - Domínguez, A.
AU  - Fidalgo, D.
AU  - Fonseca González, Mª Victoria
AU  - López, M.
AU  - Rosillo Nievas, Mirella
AU  - otros, ...
PY  - 2017
DO  - 10.3847/1538-4357/834/1/2
SN  - 0004-637X
UR  - https://hdl.handle.net/20.500.14352/17769
T2  - Astrophysical journal
AB  - Blazars are variable emitters across all wavelengths over a wide range of timescales, from months down to minutes. It is therefore essential to observe blazars simultaneously at different wavelengths, especially in the X-ray and gamma-ray bands, where...
LA  - eng
PB  - IOP Publishing LTD
KW  - BL-Lacertae objects
KW  - Active galactic nuclei
KW  - Xmm-newton
KW  - Multiwavelength observations
KW  - correlated variability
KW  - Lac objects
KW  - Blazars
KW  - Markarian-421
KW  - Telescope
KW  - Emission.
TI  - A search for spectral hysteresis and energy-dependent time lags from x-ray and TeV gamma-ray observations of Mrk 421
TY  - journal article
VL  - 834
ER  -