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首页> 外文期刊>New astronomy >The magnetospheric flare on compact magnetized object (neutron star or white dwarf) model for cosmological gamma-ray burst (GRB)
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The magnetospheric flare on compact magnetized object (neutron star or white dwarf) model for cosmological gamma-ray burst (GRB)

机译:紧凑型磁化物体(中子星或白矮星)模型上的磁层耀斑,用于宇宙伽马射线爆发(GRB)

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摘要

A SN explosion in a closed binary can give a magnetospheric flare possessing the properties of GRB. The SN shock, flowing around the magnetosphere of a magnetized neutron star or a white dwarf, produces a narrow magnetic tail 10~9 cm long, 10~8 cm wide and a magnetic field of 10~6 Gauss. Fast particles (γ approx= 10~4), generated in the tail by reconnection processes, radiate gamma rays of 100 KeV-1 MeV energies. The duration of radiation T < 1 s corresponds to a short GRB. Also, the powerful shock can tear and accelerate part of the tail. That is a relativistic (Γ approx= 10~4), strongly magnetized jet, producing gamma radiation and also X-ray and optic afterglow. That is a long (T > 10 s) GRB. The duration of the afterglow is inversely proportional to the photon energy and is several months for optical radiation.
机译:在封闭的二进制中进行SN爆炸可以产生具有GRB属性的磁层耀斑。 SN冲击在磁化的中子星或白矮星的磁层周围流动,产生一条长10〜9 cm,宽10〜8 cm的窄磁尾,磁场强度为10〜6 Gauss。重连接过程在尾部产生的快粒子(γ约等于10〜4)放射出100 KeV-1 MeV能量的伽马射线。辐射持续时间T <1 s对应于一个很短的GRB。同样,强大的震动会撕裂并加速尾巴的一部分。这是相对论(Γ约10〜4),强磁化射流,产生伽马射线以及X射线和光学余辉。这是一个较长的(T> 10 s)GRB。余辉的持续时间与光子能量成反比,对于光辐射而言则为数月。

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