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arXiv 1503.01089astro-ph.HEhep-ph
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暗物质球帮助超新星爆炸

Dark Matter Balls Help Supernovae to Explode

Colin D. Froggatt, Holger B. Nielsen

摘要:

作为一个众所周知的问题的解决方案,冲击波可能负责爆炸的超新星实际上往往会失速,我们提出了一个新的能源所产生的暗物质模型。我们早期的模型提出,暗物质应该由厘米大的白矮星状物体组成,这些物体被一层皮肤分隔开两种不同的真空。这些暗物质球或珍珠将在任何恒星的整个生命周期中聚集在其中间。在超新星发展的某个阶段,球将开始吸收中子,然后是周围的其他物质。当核子进入球时,会经过10兆电子伏的势能,导致大量的热量产生--对于被球吃掉的太阳质量的物质来说,热量是10兆电子伏。铁核的温度会因此升高,将铁分裂成更小的核。这提供了一种机制,当冲击波到达时,它会复活,并使超新星爆炸真正发生。由于暗物质球而产生的加热开始首先会阻止超新星前身的坍缩。这开启了{ \em two}坍缩产生两次中微子爆发的可能性,就像在超新星SN 1987 A中明显看到的那样-一次在勃朗峰,另一次在4小时43分钟后在IMB和神冈德。

英文摘要:

As a solution to the well-known problem that the shock wave potentially responsible for the explosion of a supernova actually tends to stall, we propose a new energy source arising from our model for dark matter. Our earlier model proposed that dark matter should consist of cm-large white dwarf-like objects kept together by a skin separating two different sorts of vacua. These dark matter balls or pearls will collect in the middle of any star throughout its lifetime. At some stage during the development of a supernova the balls will begin to take in neutrons and then other surrounding material. By passing into a ball nucleons fall through a potential of order 10 MeV, causing a severe production of heat - of order 10 foe for a solar mass of material eaten by the balls. The temperature in the iron core will thereby be raised, splitting up the iron into smaller nuclei. This provides a mechanism for reviving the shock wave when it arrives and making the supernova explosion really occur. The onset of the heating due to the dark matter balls would at first stop the collapse of the supernova progenitor. This opens up the possibility of there being {\em two} collapses giving two neutrino outbursts, as apparently seen in the supernova SN1987A - one in Mont Blanc, and one 4 hours 43 minutes later in both IMB and Kamiokande.

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。

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