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首页> 外文期刊>The Astrophysical journal >EFFECTS OF THERMAL CONDUCTION ON THE X-RAY AND SYNCHROTRON EMISSION FROM SUPERNOVA REMNANTS
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EFFECTS OF THERMAL CONDUCTION ON THE X-RAY AND SYNCHROTRON EMISSION FROM SUPERNOVA REMNANTS

机译：热传导对超新星残留物的X射线和同步加速器发射的影响

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摘要

Several physical mechanisms have been studied in order to explain why composite supernova remnants (SNRs) have shell-like morphologies in the radio continuum while their X-ray emission is centrally peaked. One of the proposed mechanisms has been the presence of thermal conduction, which can raise the density at the center of SNRs, increasing the X-ray emission from these regions. In this work, we have carried out axisym-metric numerical simulations with the adaptive grid Yguazu-a code, which includes advection of the magnetic field and thermal conduction. We have considered cases with anisotropic and isotropic thermal conduction, as well as with no conduction. We have simulated X-ray (as well as radio synchrotron) emission maps from our numerical simulations, which can be directly compared with observations.
机译：为了解释为什么复合超新星残留物（SNRs）在X射线的发射达到峰值时在无线电连续体中具有壳状形态的原因，已经研究了几种物理机制。所提出的机制之一是存在热传导，它可以提高SNR中心的密度，从而增加这些区域的X射线发射。在这项工作中，我们使用自适应网格Yguazu-a代码进行了轴对称数值模拟，其中包括磁场的平流和热传导。我们考虑了各向异性和各向同性导热以及无导热的情况。我们已经从数值模拟中模拟了X射线（以及无线电同步加速器）发射图，可以直接与观测结果进行比较。

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