Bibcode
Aleksić, J.; Ansoldi, S.; Antonelli, L. A.; Antoranz, P.; Babic, A.; Bangale, P.; Barrio, J. A.; Becerra González, J.; Bednarek, W.; Bernardini, E.; Biasuzzi, B.; Biland, A.; Blanch, O.; Bonnefoy, S.; Bonnoli, G.; Borracci, F.; Bretz, T.; Carmona, E.; Carosi, A.; Colin, P.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Caneva, G.; De Lotto, B.; de Oña Wilhelmi, E.; Delgado Mendez, C.; Dominis Prester, D.; Dorner, D.; Doro, M.; Einecke, S.; Eisenacher, D.; Elsaesser, D.; Fidalgo, D.; Fonseca, M. V.; Font, L.; Frantzen, K.; Fruck, C.; Galindo, D.; García López, R. J.; Garczarczyk, M.; Garrido Terrats, D.; Gaug, M.; Godinović, N.; González Muñoz, A.; Gozzini, S. R.; Hadasch, D.; Hanabata, Y.; Hayashida, M.; Herrera, J.; Hildebrand, D.; Hose, J.; Hrupec, D.; Idec, W.; Kadenius, V.; Kellermann, H.; Knoetig, M. L.; Kodani, K.; Konno, Y.; Krause, J.; Kubo, H.; Kushida, J.; La Barbera, A.; Lelas, D.; Lewandowska, N.; Lindfors, E.; Lombardi, S.; Longo, F.; López, M.; López-Coto, R.; López-Oramas, A.; Lorenz, E.; Lozano, I.; Makariev, M.; Mallot, K.; Maneva, G.; Mankuzhiyil, N.; Mannheim, K.; Maraschi, L.; Marcote, B.; Mariotti, M.; Martínez, M.; Mazin, D.; Menzel, U.; Miranda, J. M.; Mirzoyan, R.; Moralejo, A.; Munar-Adrover, P.; Nakajima, D.; Neustroev, V.; Niedzwiecki, A.; Nilsson, K.; Nishijima, K.; Noda, K.; Orito, R.; Overkemping, A. et al.
Bibliographical reference
Astronomy and Astrophysics, Volume 576, id.A36, 5 pp.
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2015
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Citations
13
Refereed citations
12
Description
Context. MWC 656 has recently been established as the first
observationally detected high-mass X-ray binary system containing a Be
star and a black hole (BH). The system has been associated with a
gamma-ray flaring event detected by the AGILE satellite in July 2010.
Aims: Our aim is to evaluate whether the MWC 656 gamma-ray
emission extends to very high energy (VHE > 100 GeV) gamma rays. Methods: We observed MWC 656 with the MAGIC telescopes for ~23 h
during two observation periods: between May and June 2012, and in June
2013. During the last period, observations were performed
contemporaneously with X-ray (XMM-Newton) and optical (STELLA)
instruments. Results: We did not detect the MWC 656 binary system
at TeV energies with the MAGIC telescopes in either of the two
campaigns. Upper limits (ULs) to the integral flux above 300 GeV have
been set, as well as differential ULs at a level of ~5% of the Crab
nebula flux. The results obtained from the MAGIC observations do not
support persistent emission of VHE gamma rays from this system at a
level of 2.4% the Crab flux.
Related projects

Particle Astrophysics
The members of the Particle Astrophysics Group of the IAC participate actively in three large international collaborations of high-energy astrophysics: AMS-02 (Alpha Magnetic Spectrometer), the Cherenkov radiation telescopes MAGIC I and II and the Cherenkov Telescope Array Observatory ( CTAO). We also participate in the ASTRI mini-array, the gamma
Mónica Luisa
Vázquez Acosta