A quantum electrodynamics model for non‐thermal emission from soft gamma repeaters and anomalous X‐ray pulsars
A quantum electrodynamics model for non‐thermal emission from soft gamma repeaters and anomalous X‐ray pulsars
复制标题
软伽马中继器和反常 X 射线脉冲星非热发射的量子电动力学模型
DOI：
10.1111/j.1365-2966.2005.09338.x
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发表时间：
2005
影响因子：
4.8
通讯作者：
L. Hernquist
中科院分区：
文献类型：
--
作者：
J. Heyl;L. Hernquist
以前，我们已经证明，由于量子电动力学(QED)的影响，足够强的磁流体动力学快模在穿越强磁化中子星的磁层时会破裂，形成电子-正电子对。快模式的大部分能量推动了电子-正电子火球的发展。然而，一小部分能量(∼10 33erg)可以在远离恒星的地方产生非热分布的电子和正电子，但可能是可以观察到的。在本文中，我们研究了这些粒子的冷却和辐射输出。我们还研究了在没有火球的情况下非热发射的性质，以了解不产生光学厚度对等离子体的快模式的击穿。这种与快速模式击穿相关的静态非热辐射可能解释了最近观测到的几个反常X射线脉冲星和软伽马中继器的非热辐射。KEYWODS：MHD辐射机制，非热脉冲星，一般。
Previously, we showed that, owing to effects arising from quantum electrodynamics (QED), magnetohydrodynamic fast modes of sufficient strength will break down to form electron‐ positron pairs while traversing the magnetospheres of strongly magnetized neutron stars. The bulk of the energy of the fast mode fuels the development of an electron‐positron fireball. However, a small, but potentially observable, fraction of the energy (∼10 33 erg) can generate a non-thermal distribution of electrons and positrons far from the star. In this paper, we examine the cooling and radiative output of these particles. We also investigate the properties of nonthermal emission in the absence of a fireball to understand the breakdown of fast modes that do not yield an optically thick pair plasma. This quiescent, non-thermal radiation associated with fast-mode breakdown may account for the recently observed non-thermal emission from several anomalous X-ray pulsars and soft gamma repeaters. Ke yw ords: MHD ‐ radiation mechanisms, non-thermal ‐ pulsars, general.
影响因子：
4.9
作者：
Kuiper, L;Hermsen, W;Mendez, M
通讯作者：
Mendez, M