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首页> 外文期刊>The Astrophysical journal >PHOTON-SPLITTING LIMITS TO THE HARDNESS OF EMISSION IN STRONGLY MAGNETIZED SOFT GAMMA REPEATERS
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PHOTON-SPLITTING LIMITS TO THE HARDNESS OF EMISSION IN STRONGLY MAGNETIZED SOFT GAMMA REPEATERS

机译：强磁化软伽玛中继器的发射困难的光子分裂极限

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摘要

Soft gamma repeaters are characterized by recurrent activity consisting of short-duration outbursts of high-energy emission that is typically of temperature less than 40 keV. One recent model of repeaters is that they originate in the environs of neutron stars with superstrong magnetic fields, perhaps greater than 10~(14) G. In such fields, the exotic process of magnetic photon splitting γ → γγ acts very effectively to reprocess gamma-ray radiation down to hard X-ray energies. In this Letter, the action of photon splitting is considered in some detail, via the solution of photon kinetic equations, determining how it limits the hardness of emission in strongly magnetized repeaters, and thereby obtaining observational constraints to the field in SGR 1806 — 20.
机译：软伽玛中继器的特点是经常性活动，包括高能发射的短时爆发，通常温度低于40 keV。中继器的一种最新模型是，它们起源于具有超强磁场（可能大于10〜（14）G）的中子星周围。在这样的磁场中，磁光子γ→γγ的奇异过程非常有效地重新处理了γ射线辐射到硬X射线能量。在这封信中，通过光子动力学方程的解来详细考虑光子分裂的作用，确定其如何限制强磁化中继器的发射硬度，从而在SGR 1806-20中获得对场的观测约束。

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