Hamburg 2016 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 65: Gammaastronomie III

T 65.4: Vortrag

Dienstag, 1. März 2016, 17:35–17:50, VMP11 HS

Long-term studies of Markarian 421 from 2007 to 2009 — •Sonja Schröder¹, Ann-Kristin Overkemping¹, Marina Manganaro², and Diego Tescaro³ for the MAGIC collaboration — ¹TU Dortmund, Dortmund, Deutschland — ²IAC La Laguna, Teneriffa, Spanien — ³INFN, Padova, Italien

The MAGIC experiment consists of two Imaging Air shower Cherenkov Telescopes to detect and study gamma-rays from galactic and extragalactic sources. Blazars are a special type of extragalactic sources hosting an Active Galactic Nucleus (AGN) with a jet directed towards earth. The AGN Mrk 421 is one of the strongest and brightest known blazars suitable for very high-energy (VHE) observations. This talk gives an overview over long-term variability and correlation studies of the blazar Mrk 421. For this study a VHE dataset collected by MAGIC-I covering the extensive timespan from February 2007 to June 2009 was examined together with data of different wavelengths from other telescopes. These kind of studies could allow for an increase of knowledge about the possible emission processes inside Mrk 421.