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Prog. Theor. Phys. Vol. 83 No. 3 (1990) pp. 499-521

[ Full Text PDF : FREE ACCESS (1349K) ]

Static and Dynamical Properties of Neutron Stars with Combined π0-πc Condensation

— Consequences from the First Order Phase Transition —

Takumi Muto and Toshitaka Tatsumi*

Research Institute for Fundamental Physics, Kyoto University, Kyoto 606
*Department of Physics, Kyoto University, Kyoto 606

(Received November 6, 1989)

Abstract:

Static and dynamical properties of neutron stars, in which combined π0-πc condensed core is contained, are investigated on the basis of the chiral symmetry approach. The first order nature of the phase transition is emphasized in studying these properties. For static properties, significant softening of the equation of state mainly due to the π0 condensate brings about a large change of internal structure from that of the normal phase. Effects on dynamical properties, especially mini-collapse associated with the first order phase transition from the metastable (supercompressed) πc condensed core to the stable combined π0-πc condensed core, are investigated in some detail. Energy release and lifetime of the metastable core are estimated and their implications on astronomical phenomena, especially 5 March 1979 event, are discussed.


URL : http://ptp.ipap.jp/link?PTP/83/499/
DOI : 10.1143/PTP.83.499

[ Full Text PDF : FREE ACCESS (1349K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 85 No. 2 (1991) pp. 321-334 :
    Implications of the H-Dihyperon in High Density Hadronic Matter
    Ryozo Tamagaki
  2. Progress of Theoretical Physics Vol. 86 No. 1 (1991) pp. 57-71 :
    Phase Transition of Hot Neutron Matter to π0-Condensed State
    Mariko Takahara, Tatsuyuki Takatsuka and Katsuhiko Sato
  3. Progress of Theoretical Physics Supplement No.112 (1993) pp. 221-275 :
    Chapter VIII. Implications of Various Hadron Phases to Neutron Star Phenomena
    Takumi Muto, Tatsuyuki Takatsuka, Ryozo Tamagaki and Toshitaka Tatsumi
  4. Progress of Theoretical Physics Supplement No.120 (1995) pp. 111-133 :
    Kaon Condensation and Neutron Stars
    Toshitaka Tatsumi

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