Gamma-ray binaries involves gamma-ray emitting binary systems where a compact object orbits around a massive stellar companion. Only a handful of such systems are known to date, and only in one case the compact object is confirmed to be a pulsar: PSR B1259-63/LS 2883. The high-energy emissions of pulsar gamma-ray binaries are believed to be resulting from the interaction between the pulsar wind and stellar wind. The pulsar wind properties, especially its magnetization, is a long-standing problem in astrophysics. Since the orbits of long period gamma-ray binaries are typically highly eccentric, studying the high-energy emissions from pulsar gamma-ray binaries will help us to probe pulsar winds at various length scales. In this talk, I will report on the recent observations of Pulsar/Be Binary System PSR J2032+4127/MT91 213 at high energies, which likely has an orbital period of about 50 years.

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高能天体物理组

云南天文台学术委员会

邀请人：毛基荣 13629437174

1月16日