http://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=25399.0極超新星爆炸 ASASSN-15lh 離38億光年外 現在有一說跟夸克星有關係 ?
http://arxiv.org/abs/1508.07745The Most Luminous Supernova ASASSN-15lh: Signature of a Newborn Rapidly-Rotating Strange Quark Star
Z. G. Dai, S. Q. Wang, J. S. Wang, L. J. Wang, Y. W. Yu
(Submitted on 31 Aug 2015 (v1), last revised 23 Dec 2015 (this version, v3))
In this paper we show that the most luminous supernova discovered very recently, ASASSN-15lh, could have been powered by a newborn ultra-strongly-magnetized pulsar, which initially rotates near the Kepler limit. We find that if this pulsar is a neutron star, its rotational energy could be quickly lost as a result of gravitational-radiation-driven r-mode instability; if it is a strange quark star, however, this instability is highly suppressed due to a large bulk viscosity associated with the nonleptonic weak interaction among quarks and thus most of its rotational energy could be extracted to drive ASASSN-15lh. Therefore, we conclude that such an ultra-energetic supernova provides a possible signature for the birth of a strange quark star.
Comments: 6 pages, title changed, one figure added, conclusions unchanged, accepted for publication in ApJ
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE)
Cite as: arXiv:1508.07745 [astro-ph.HE]
(or arXiv:1508.07745v3 [astro-ph.HE] for this version)
Submission history
From: Zigao Dai [view email]
[v1] Mon, 31 Aug 2015 09:52:29 GMT (334kb)
[v2] Mon, 12 Oct 2015 12:11:10 GMT (388kb)
[v3] Wed, 23 Dec 2015 11:56:24 GMT (462kb)
