Hamburg 2016 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 104: Gammaastronomie V
T 104.4: Vortrag
Donnerstag, 3. März 2016, 17:30–17:45, VMP9 SR 27
The long-term broadband monitoring of the high-peaked BL Lac Mrk 501 in 2014 including the most extreme X-ray flaring activity — •Kazuma Ishio1, Josepha Becerra Gonzalez2, Koji Noda1, David Paneque1, and Fabrizio Tavecchio3 for the MAGIC collaboration — 1Max-Planck-Institut für Physik, München, Deutschland — 2NASA Goddard Space Flight Center, Maryland, USA — 3INAF Osservatorio Astronomico di Brera, Milan, Italien
Blazars emit over the entire electromagnetic spectrum and are variable on various timescales, from years down to minutes. Therefore, long and dense coverage over a wide energy range is needed for characterizing and unraveling the dynamics of blazars.
Markarian 501, a BL Lac type blazar object, located in our extragalactic neighborhood (z=0.034), is an ideal source, because of its proximity and high brightness, which allows significant detections in short observing times. I will report results from the campaign in 2014, including the very high activity in July 2014, during which the source displayed the highest X-ray fluxes detected in 10 years of operation with Swift, together with very hard spectra at X-rays and gamma-ray energies with substantial variability on day timescales.