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Pregled bibliografske jedinice broj: 713139

Časopis

Autori: Aleksić, Jelena; ...; Babić, Ana; ...; Dominis Prester, Dijana; ...; Godinović, Nikola; ...; Hrupec, Dario; ...; Lelas, Damir; ...; Puljak, Ivica; ...; Šnidarić, Iva; ...; Terzić, Tomislav; ...; Moldón, J.
Naslov: MAGIC observations of MWC 656, the only known Be/BH system
Izvornik: Astronomy and astrophysics (0004-6361) 576 (2015); A36-1-A36-5
Vrsta rada: članak
Ključne riječi: binaries: general; gamma rays: observations; gamma rays: binary; stars: individual (MWC 656); X-rays: binaries; X-rays: individual (MWC 656)
Sažetak:
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 if the MWC 656 gamma-ray emission extends to very high energy (VHE > 100 GeV) gamma rays. Methods: We have observed MWC 656 with the MAGIC telescopes for ∼23 hours during two observation periods: between May and June 2012 and June 2013. During the last period, observations were performed contemporaneously with X-ray (XMM-Newton) and optical (STELLA) instruments. Results: We have not detected the MWC 656 binary system at TeV energies with the MAGIC Telescopes in either of the two campaigns carried out. 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 very high energy gamma rays from this system at a level of 2.4% the Crab flux.
Projekt / tema: HRZZ-09/176
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Kategorija: Znanstveni
Znanstvena područja:
Fizika
Puni text rada: 713139.MWC656v2.pdf
URL Internet adrese: http://dx.doi.org/10.1051/0004-6361/201424879
http://www.aanda.org/articles/aa/abs/2015/04/aa24879-14/aa24879-14.html
http://arxiv.org/abs/1502.01529v2
Broj citata:
Altmetric:
DOI: 10.1051/0004-6361/201424879
URL cjelovitog teksta: http://dx.doi.org/10.1051/0004-6361/201424879
Google Scholar: MAGIC observations of MWC 656, the only known Be/BH system
Upisao u CROSBI: Dario Hrupec (Dario.Hrupec@irb.hr), 5. Ruj. 2014. u 19:42 sati



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