Middleditch 2007 SN1987A可能也是伽玛暴
主要内容:
认为SN1987A和其他很多超新星产生于双简并星的并合，也能产生长暴。
那就是认为现在的普遍模型不对咯
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文章信息:
The SN 1987A Link to Others and Gamma-Ray Bursts
(Submitted on 16 Aug 2007 (v1), last revised 26 Aug 2007 (this version, v2))
Abstract: Early measurements of SN 1987A can be interpreted in light of the beam/jet (BJ) which had to hit polar ejecta (PE) to produce the "Mystery Spot" (MS), some 22 light-days distant. Other details of SN 1987A strongly suggest that it resulted from a merger of two stellar cores of a common envelope (CE) binary, i.e. a "double degenerate" (DD)-initiated SN. Without having to blast through the CE of Sk -69 202, it is likely that the BJ would have caused a full, long-soft gamma-ray burst (lGRB) upon hitting the PE, thus DD can produce lGRBs (and, of course, MSPs). Because DD must be the overwhelmingly dominant merger/SN mechanism in elliptical galaxies, where only short, hard GRBs (sGRBs) have been observed, DD without CE or PE must also produce sGRBs, and thus the pre-CE/PE impact photon spectrum of 99% of all GRBs is known, and neutron star (NS)-NS mergers may not make GRBs as we know them, and/or be as common as previously thought. The many details of Ia's strongly suggest that these are also DD formed, and the single degenerate total thermonuclear disruption paradigm is now in serious doubt as well. This is a cause for concern in Ia Cosmology, because Type Ia SNe will appear to be Ic's when viewed from their DD merger poles, given sufficient matter above that lost to core-collapse. As a DD-initiated SN, 1987A appears to be the Rosetta Stone for 99% of SNe, GRBs and MSPs, including all recent nearby SNe except SN 1986J, and the more distant SN 2006gy. There is no for exotica, such as "collapsars," to account for GRBs.
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