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Long-term multiwavelength studies of high-redshift blazar 0836+710

Aims. The observation of γ-ray flares from blazar 0836+710 in 2011, following a period of quiescence, offered an opportunity to study correlated activity at different wavelengths for a high-redshift (z = 2.218) active galactic nucleus.Methods. Optical and radio monitoring, plus Fermi-LAT γ-ray monit...

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Hauptverfasser: Akyuz, Adnan (VerfasserIn) , Thompson, D. J. (VerfasserIn) , Donato, D. (VerfasserIn) , Perkins, J. S. (VerfasserIn) , Fuhrmann, L. (VerfasserIn) , Angelakis, E. (VerfasserIn) , Zensus, J. A. (VerfasserIn) , Larsson, S. (VerfasserIn) , Sokolovsky, K. (VerfasserIn) , Kurtanidze, Omar M. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 30 July 2013
In: Astronomy and astrophysics
Year: 2013, Jahrgang: 556, Pages: 1-10
ISSN:1432-0746
DOI:10.1051/0004-6361/201321721
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1051/0004-6361/201321721
Verlag, lizenzpflichtig, Volltext: https://www.aanda.org/articles/aa/abs/2013/08/aa21721-13/aa21721-13.html
Volltext
Verfasserangaben:A. Akyuz, D.J. Thompson, D. Donato, J.S. Perkins, L. Fuhrmann, E. Angelakis, J.A. Zensus, S. Larsson, K. Sokolovsky, and O. Kurtanidze
Beschreibung
Zusammenfassung:Aims. The observation of γ-ray flares from blazar 0836+710 in 2011, following a period of quiescence, offered an opportunity to study correlated activity at different wavelengths for a high-redshift (z = 2.218) active galactic nucleus.Methods. Optical and radio monitoring, plus Fermi-LAT γ-ray monitoring provided 2008−2012 coverage, while Swift offered auxiliary optical, ultraviolet, and X-ray information. Other contemporaneous observations were used to construct a broad-band spectral energy distribution.Results. There is evidence of correlation but not a measurable lag between the optical and γ-ray flaring emission. In contrast, there is no clear correlation between radio and γ-ray activity, indicating radio emission regions that are unrelated to the parts of the jet that produce the γ rays. The γ-ray energy spectrum is unusual in showing a change of shape from a power law to a curved spectrum when going from the quiescent state to the active state.
Beschreibung:Gesehen am 07.05.2021
Beschreibung:Online Resource
ISSN:1432-0746
DOI:10.1051/0004-6361/201321721

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