Radio emission from the Be/black hole binary MWC 656
نویسندگان
چکیده
منابع مشابه
On the formation and evolution of the first Be star in a black hole binary MWC 656
We find that the formation of MWC 656 (the first Be binary containing a black hole) involves a common envelope phase and a supernova explosion. This result supports the idea that a rapidly rotating Be star can emerge out of a common envelope phase, which is very intriguing because this evolutionary stage is thought to be too fast to lead to significant accretion and spin up of the B star. We pr...
متن کاملThe First Simultaneous X-Ray/Radio Detection of the First Be/BH System MWC 656
MWC656 is the first known Be/black hole (BH) binary system. Be/BH binaries are important in the context of binary system evolution and sources of detectable gravitational waves because they are possible precursors of coalescing neutron star/BH binaries. X-ray observations conducted in 2013 revealed that MWC656 is a quiescent high-mass X-ray binary (HMXB), opening the possibility to explore X-...
متن کاملDiscovery of Radio Emission from the Quasar Sdss J1536+0441, a Candidate Binary Black-hole System
The radio-quiet quasar SDSS J1536+0441 shows two broad-line emission systems that Boroson & Lauer interpret as a candidate binary black-hole system with a separation of 0.1 pc (0.02 mas). From new VLA imaging at 8.5 GHz, two faint sources, separated by 0.97 (5.1 kpc), have been discovered within the quasar’s optical localization region. Each radio source is unresolved, with a diameter of less t...
متن کاملCO band emission from MWC 349
We observed the near infrared emission in the wavelength range 2.28–2.5μm from the peculiar B[e]-star MWC 349. The spectra contain besides the strong IR continuum the first overtone CO bands and most of the hydrogen recombination lines of the Pfund series, both in emission. We also modeled the spectra. The Pfund lines have a gaussian profile with a FWHM of ∼ 100 km/s, and it turned out that the...
متن کاملMAGIC observations of MWC 656, the only known Be/BH system
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. Method...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2015
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201526867