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arXiv · 1807.09509

VHE observations of binary systems performed with the MAGIC telescopes

Alicia López-Oramas·Oscar Blanch·Emma de Oña Wilhelmi·Alba Fernández-Barral·Daniela Hadasch·Elena Moretti·Pere Munar-Adrover·Josep Maria Paredes·Marc Ribó·Diego F. Torres·Pol Bordas·François Brun·Jorge Casares·Roberta Zanin
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Abstract

The improvement on the Imaging Air Cherenkov Technique (IACT) led to the discovery of a new type of sources that can emit at very high energies: the gamma-ray binaries. Only six systems are part of this exclusive class. We summarize the latest results from the observations performed with the MAGIC telescopes on different systems as the gamma-ray binary LS I +61$^{\circ}$ 303 and the microquasars SS433, V404 Cygni and Cygnus X-1, which are considered potential VHE gamma-ray emitters. The binary system LS I +61$^{\circ}$ 303 has been observed by MAGIC in a long-term monitoring campaign. We show the newest results of our search for super-orbital variability also in context of contemporaneous optical observations. Besides, we will present the results of the only super-critical accretor known in our galaxy: SS 433. We will introduce the VHE results achieved with MAGIC after 100 hours of observations on the microquasar Cygnus X-1 and report on the microquasar V404 Cyg, which has been observed with MAGIC after it went through a series of exceptional X-ray outbursts in June 2015.

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Alicia López-Oramas, Oscar Blanch, Emma de Oña Wilhelmi, Alba Fernández-Barral, Daniela Hadasch, Elena Moretti, Pere Munar-Adrover, Josep Maria Paredes, Marc Ribó, Diego F. Torres, Pol Bordas, François Brun, Jorge Casares, Roberta Zanin. 2018-07-25. VHE observations of binary systems performed with the MAGIC telescopes. https://doi.org/10.1142/s0218271818440108

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