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arXiv 1402.4812astro-ph.SR
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失败的超新星形成的尘埃

Dust Formation By Failed Supernovae

C. S. Kochanek

摘要:

我们认为尘埃的形成过程中的喷射过程中的氢包层的红超巨星在一个失败的超新星(SN)创造一个黑洞。虽然密集、缓慢移动的喷出物在形成尘埃方面非常有效,但只有预测的视觉瞬变的最后阶段才会被遮挡。净颗粒产量由约0.01太阳质量的非常大的颗粒(10至1000微米)组成。这意味着SNe的失败可能是由伽利略、伽利略和雷达研究流星体再入轨迹所确定的非常大的太阳系外尘埃颗粒的来源,而不是来自与原行星或其他圆盘相关的喷射过程。

英文摘要:

We consider dust formation during the ejection of the hydrogen envelope of a red supergiant during a failed supernova (SN) creating a black hole. While the dense, slow moving ejecta are very efficient at forming dust, only the very last phases of the predicted visual transient will be obscured. The net grain production consists of ~0.01 solar masses of very large grains (10 to 1000 microns). This means that failed SNe could be the source of the very large extrasolar dust grains identified by Ulysses, Galileo and radar studies of meteoroid re-entry trails rather than their coming from an ejection process associated with protoplanetary or other disks.

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