arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1408.0895astro-ph.SRastro-ph.HE
收藏

超新星shock waves与星团环境相互作用的流体动力学模拟:RX J0852 .0-4622(Vela Jr)超新星遗迹的情况

Hydrodynamic simulations of the interaction of supernova shock waves with a clumpy environment: the case of the RX J0852.0-4622 (Vela Jr) supernova remnant

M. Obergaulinger, A. Iyudin, E. Müller, G. F. Smoot

摘要:

在所有电磁波段的观测表明,许多超新星遗迹(SNRs)具有非常非球面的形状。这可能是超新星爆炸或恒星周围介质不对称的结果。我们研究产生的不均匀性和混合所产生的元素从这两个来源在多维流体动力学模拟的超新星爆炸波传播到多云的环境。我们对特定SNR Vela Jr(RX J0852.0-4622)进行建模。通过将我们的结果与最近的观测结果进行比较,我们可以限制爆炸的性质。我们发现,大约800年前发生的几个10^{51} erg的高能爆炸与SNR的形状和发射相一致,以及几千年前能量接近10^{51} erg的超新星。

英文摘要:

Observations in all electromagnetic bands show that many supernova remnants (SNRs) have a very aspherical shape. This can be the result of asymmetries in the supernova explosion or a clumpy circumstellar medium. We study the generation of inhomogeneities and the mixing of elements arising from these two sources in multidimensional hydrodynamic simulations of the propagation of a supernova blast wave into a cloudy environment. We model a specific SNR, Vela Jr (RX J0852.0-4622). By comparing our results with recent observations, we can constrain the properties of the explosion. We find that a very energetic explosion of several 10^{51} erg occurring roughly about 800 years ago is consistent with the shape and emission of the SNR, as well as a supernova with an energy closer to the canonical value of 10^{51} erg a few thousand years ago.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑