STRANGE MATTER IN CORE-COLLAPSE SUPERNOVAE

被引：7

作者：

Sagert, I. ^{[1
]}

Fischer, T. ^{[2
]}

Hempel, M. ^{[3
]}

Pagliara, G. ^{[4
,5
]}

Schaffner-Bielich, J. ^{[6
]}

Thielemann, F. -K. ^{[3
]}

Liebendoerfer, M. ^{[3
]}

机构：

[1] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48823 USA

[2] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64289 Darmstadt, Germany

[3] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland

[4] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy

[5] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy

[6] Univ Heidelberg, Inst Theoret Phys, D-69120 Heidelberg, Germany

来源：

ACTA PHYSICA POLONICA B | 2012年 / 43卷 / 04期

关键词：

PHASE-TRANSITIONS; NUCLEAR-MATTER; NEUTRON-STARS; QUARK MATTER; EXPLOSIONS; DYNAMICS; PULSARS; BINARY; STATE;

D O I：

10.5506/APhysPolB.43.741

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the possible impact of strange quark matter on the evolution of core-collapse supernovae with emphasis on low critical densities for the quark-hadron phase transition. For such cases the hot proto-neutron star can collapse to a more compact hybrid star configuration hundreds of milliseconds after core-bounce. The collapse triggers the formation of a second shock wave. The latter leads to a successful supernova explosion and leaves an imprint on the neutrino signal. These dynamical features are discussed. with respect to their compatibility with recent neutron star mass measurements which indicate a stiff high density nuclear matter equation of state.

引用

页码：741 / 748

页数：8

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