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Title: Strange Quark Star Crusts

Abstract

If strange quark matter is absolutely stable, some neutron stars may be strange quark stars. Strange quark stars are usually assumed to have a simple liquid surface. We show that if the surface tension of droplets of quark matter in the vacuum is sufficiently small, droplets of quark matter on the surface of a strange quark star may form a solid crust on top of the strange quark star. This solid crust can significantly modify the predictions for the photon emission for the surface in an observable way.

Authors:
 [1];  [2]
  1. Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
21056895
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 892; Journal Issue: 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 2-7 Sep 2006; Other Information: DOI: 10.1063/1.2714455; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; LIQUIDS; NEUTRON STARS; PHOTON EMISSION; QUARK MATTER; S QUARKS; SURFACE TENSION; SURFACES

Citation Formats

Steiner, Andrew W., and Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824. Strange Quark Star Crusts. United States: N. p., 2007. Web. doi:10.1063/1.2714455.
Steiner, Andrew W., & Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824. Strange Quark Star Crusts. United States. doi:10.1063/1.2714455.
Steiner, Andrew W., and Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824. Tue . "Strange Quark Star Crusts". United States. doi:10.1063/1.2714455.
@article{osti_21056895,
title = {Strange Quark Star Crusts},
author = {Steiner, Andrew W. and Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824},
abstractNote = {If strange quark matter is absolutely stable, some neutron stars may be strange quark stars. Strange quark stars are usually assumed to have a simple liquid surface. We show that if the surface tension of droplets of quark matter in the vacuum is sufficiently small, droplets of quark matter on the surface of a strange quark star may form a solid crust on top of the strange quark star. This solid crust can significantly modify the predictions for the photon emission for the surface in an observable way.},
doi = {10.1063/1.2714455},
journal = {AIP Conference Proceedings},
number = 1,
volume = 892,
place = {United States},
year = {Tue Feb 27 00:00:00 EST 2007},
month = {Tue Feb 27 00:00:00 EST 2007}
}
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  • 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 (SQS), 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 thatmore » such an ultra-energetic supernova provides a possible signature for the birth of an SQS.« less