标题： 超新星遗迹中高效宇宙射线产生时的无线电和X射线轮廓 显示英文标题

标题： Radio and X-ray Profiles in Supernova Remnants Undergoing Efficient Cosmic Ray Production

摘要： 年轻超新星遗迹（SNRs）中的强激波应该会加速宇宙射线（CRs），毫无疑问，\rel 电子是在SNRs中产生的。 然而，目前尚未获得SNRs产生CR核的直接且有说服力的证据，事实上，如果当前的伽马射线观测台站没有观察到明确的π介子衰变特征，那么这种证据可能需要很长时间才能获得。 然而，观测不到π介子衰变特征并不一定意味着CR离子没有大量产生，因为离子不会有效辐射。 如果CR离子通过扩散激波加速（DSA）被高效地产生，它们的存在将会改变超新星遗迹的流体力学，并在由电子产生的辐射中产生可以明显观察到的形态效应。 我们详细描述了我们的CR-流体动力学模型，该模型将DSA与遗迹的流体力学相结合，并且对于代表Ia型和II型超新星的两种不同参数集，预计会产生同步辐射发射。 在径向剖面中出现了几个形态特征，包括前激波预震区，这些特征可以用现有的X射线观测台观测到，并且应该能够明确显示年轻SNRs是否能有效地产生CR离子。 对于SN 1006的特殊情况，正如其他人得出的结论一样，外激波附近观测到的极短的X射线尺度高度有力地证明了CR离子的高效产生。 显示英文摘要

摘要： The strong shocks in young supernova remnants (SNRs) should accelerate cosmic rays (CRs) and no doubt exists that \rel electrons are produced in SNRs. However, direct and convincing evidence that SNRs produce CR nuclei has not yet been obtained and may, in fact, be long in coming if current gamma-ray observatories do not see an unambiguous pion-decay feature. Nevertheless, the lack of an observed pion-decay feature does not necessarily mean that CR ions are not abundantly produced since ions do not radiate efficiently. If CR ions are produced efficiently by diffusive shock acceleration (DSA), their presence will modify the hydrodynamics of the SNR and produce morphological effects which can be clearly seen in radiation produced by electrons. We describe in some detail our CR-hydro model, which couples DSA with the remnant hydrodynamics, and the synchrotron emission expected for two distinct parameter sets representing type Ia and type II supernovae. Several morphological features emerge in radial profiles, including the forward shock precursor, which are observable with current X-ray observatories and which should definitively show if young SNRs produce CR ions efficiently or not. For the specific case of SN 1006, we conclude, as have others, that the extremely short X-ray scale heights observed near the outer shock argue convincingly for the efficient production of CR ions.