Existence of hyperons in the pulsar PSRJ1614-2230

Anto Sulaksono, B. K. Agrawal

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)


The possibility of existence of hyperons in the recently measured 2M pulsar PSRJ1614-2230 is explored using a diverse set of nuclear equations of state calculated within the relativistic mean-field models. Our results indicate that the nuclear equations of state compatible with heavy-ion data allow the hyperons to exist in the PSRJ1614-2230 only for significantly larger values for the meson–hyperon coupling strengths. The maximum mass configurations for these cases contain sizable hyperon fractions (∼60%) and yet masquared their counterpart composed of only nucleonic matter.

Original languageEnglish
Pages (from-to)44-58
Number of pages15
JournalNuclear Physics A
Publication statusPublished - 1 Dec 2012


  • Dense matter
  • Neutron stars
  • Relativistic mean-field model


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