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Título:
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Detection of the blazar S4 0954+65 at very-high-energy with the MAGIC telescopes during an exceptionally high optical state
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Autores:
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Barrio Uña, Juan Abel ;
Contreras González, José Luis ;
Domínguez Díaz, Alberto ;
Carreto Fidalgo, David Friedrich ;
Fonseca González, Victoria ;
López Moya, Marcos ;
Nievas Rosillo, Mireia ;
otros, ...
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Tipo de documento:
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texto impreso
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Editorial:
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EDP SCIENCES S A, 2018-09-13
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física nuclear
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Tipo = Artículo
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Resumen:
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Aims. The very high energy (VHE greater than or similar to 100 GeV) gamma-ray MAGIC observations of the blazar S4 0954+65, were triggered by an exceptionally high flux state of emission in the optical. This blazar has a disputed redshift of z = 0.368 or z >= 0.45 and an uncertain classification among blazar subclasses. The exceptional source state described here makes for an excellent opportunity to understand physical processes in the jet of S4 0954+65 and thus contribute to its classification. Methods. We investigated the multiwavelength (MWL) light curve and spectral energy distribution (SED) of the S4 0954+65 blazar during an enhanced state in February 2015 and have put it in context with possible emission scenarios. We collected photometric data in radio, optical, X-ray, and gamma-ray. We studied both the optical polarization and the inner parsec-scale jet behavior with 43 GHz data. Results. Observations with the MAGIC telescopes led to the first detection of S4 0954+65 at VHE. Simultaneous data with Fermi-LAT at high energy gamma-ray(HE, 100 MeV
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En línea:
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https://eprints.ucm.es/51288/1/ContrerasJL15preprint.pdf
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