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Verfasst von:Wierzcholska, Alicja [VerfasserIn]   i
Titel:Nine years of multi-frequency monitoring of the blazar PKS 0048-097
Titelzusatz:spectral and temporal variability
Verf.angabe:Alicja Wierzcholska
E-Jahr:2015
Jahr:10 August 2015
Fussnoten:Gesehen am 01.07.2020
Titel Quelle:Enthalten in: Astronomy and astrophysics
Ort Quelle:Les Ulis : EDP Sciences, 1969
Jahr Quelle:2015
Band/Heft Quelle:580(2015) Artikel-Nummer A104, 11 Seiten
ISSN Quelle:1432-0746
Abstract:Context. Blazars are highly variable, radio-loud active galactic nuclei with jets oriented at a small angle to the line of sight. The observed emission of these sources covers the whole electromagnetic spectrum from radio frequencies up to the high or even very high energy gamma-ray range. To understand the complex physics of these objects, multi-wavelength observations and studies on the variability and correlations between different wavelengths are therefore essential. Aims. The long-term multi-frequency observations of PKS 0048−097 are analysed here to investigate its spectral and temporal features. The studies includes nine years of observations of the blazar, which is well studied in the optical and radio domain, but not in the other frequencies. Methods. Multi-wavelength data collected with OVRO, KAIT, Catalina, Swift /UVOT, Swift/XRT, and Fermi/LAT were studied. Results. The performed analysis revealed strong variability in all wavelengths that is most clearly manifested in the X-ray range. The correlation studies do not exhibit any relation between different wavelengths, except for the very strong positive correlation between the optical emission in V and R bands.
DOI:doi:10.1051/0004-6361/201525649
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext ; Verlag: https://doi.org/10.1051/0004-6361/201525649
 Volltext: https://www.aanda.org/articles/aa/abs/2015/08/aa25649-15/aa25649-15.html
 DOI: https://doi.org/10.1051/0004-6361/201525649
Datenträger:Online-Ressource
Sprache:eng
K10plus-PPN:1703093178
Verknüpfungen:→ Zeitschrift

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