Research PapersNo Access

PROTONEUTRON STAR MODEL WITH NONZERO STRANGENESS CORE

Department of Astrophysics and Cosmology, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40-007 Katowice, Poland

Search for more papers by this author

MARCIN KȨSKA

Department of Astrophysics and Cosmology, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40-007 Katowice, Poland

Search for more papers by this author

, and

RYSZARD MAŃKA

Department of Astrophysics and Cosmology, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40-007 Katowice, Poland

Search for more papers by this author

https://doi.org/10.1142/S0218271804004499Cited by:3 (Source: Crossref)

Abstract

Protoneutron stars are hot and lepton rich objects formed in type II supernovae. It is natural to regard the evolution of these stars as taking place in several stages. This paper describes results of analysis of protoneutron star evolution for models incorporating an strangeness-rich, neutrino opaque matter equation of state. Of special interest in this paper is the comparison of protoneutron star models for two different phases. One characterized by neutrino trapping and by the value of entropy s=1 and the other, formed when neutrinos leak out of the system, described as a hot deleptonized star. The equation of state adequate for the protoneutron star has been constructed. It has been shown that the maximum stable protoneutron star mass is close to 1.44 M_⊙.

Keywords:

You currently do not have access to the full text article.
Recommend the journal to your library today!

References

M. Prakashet al., Phys. Rep. 280, 1 (1997). Crossref, Web of Science, ADS, Google Scholar
J. M. Lattimer and M. Prakash, Astrophys. J. 550, 426 (2001). Crossref, Web of Science, ADS, Google Scholar
J. A. Ponset al., Phys. Rev. C62, 035803 (2000). Google Scholar
A. Burrows and J. M. Lattimer, Astrophys. J. 307, 178 (1986). Crossref, Web of Science, ADS, Google Scholar
B. D. Serot and J. D. Walecka, Adv. Nucl. Phys. 16, 1 (1986); Int. J. Mod. Phys. E6, 515 (1997) . Google Scholar
P.-G. Reinhardet al., Z. Phys. — Atomic Nuclei A323, 13 (1986). Google Scholar
Y. Sugahara and H. Toki, Prog. Theor. Phys. 92, 803 (1994). Crossref, Web of Science, ADS, Google Scholar
I. Bednarek and R. Manka, Int. J. Mod. Phys. D10, 607 (2001). ADS, Google Scholar
S. Kubis and M. Kutschera, Phys. Lett. B399, 191 (1997). ADS, Google Scholar
N. K. Glendenning, Astrophys. J. 293, 470 (1985); also see in Compact Stars by N. K. Glendenning (Springer-Verlag, New York, 1997) . Google Scholar
J. Zimanyi and S. A. Moszkowski, Phys. Rev. C42, 1416 (1990). ADS, Google Scholar
S. Bartet al., Phys. Rev. Lett. 83, 5238 (1999). Crossref, Web of Science, ADS, Google Scholar
J. Mareset al., Nucl. Phys. A584, 311 (1995). Google Scholar