Abstract
We suggest a new Bayesian analysis using disjunct mass and radius constraints for extracting probability measures for cold, dense nuclear matter equations of state. One of the key issues of such an analysis is the question of a deconfinement transition in compact stars and whether it proceeds as a crossover or rather as a first order transition. The latter question is relevant for the possible existence of a critical endpoint in the QCD phase diagram under scrutiny in present and upcoming heavy-ion collision experiments.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
N. Chamel and P. Haensel, “Physics of neutron star crusts,” Living Rev. Relat. 11, 10 (2008).
I. Bednarek, “Hyperon star,” Acta Phys. Pol., B 40, 3071 (2009).
P. Demorest et al., “A two-solar-mass neutron star measured using Shapiro delay,” Nature 467, 1081 (2010).
J. Antoniadis et al., “A massive pulsar in a compact relativistic binary,” Science 340, 6131 (2013).
P. Papazoglou et al., “Chiral Lagrangian for strange hadronic matter,” Phys. Rev., C 57, 2576 (1998).
P. Papazoglou et al., “Nuclei in a chiral SU(3) model,” Phys. Rev., C 59, 411 (1999).
I. Bednarek and R. Manka, “The role of nonlinear vector meson interactions in hyperon stars,” J. Phys., G 36, 095201 (2009).
I. Bednarek et al., “Hyperons in neutron-star cores and a 2Mpulsar,” Astron. Astrophys. 543, A157 (2012).
Y. Sugahara and H. Toki, “Relativistic mean field theory for lambda hypernuclei and neutron stars,” Progr. Theor. Phys. 92, 803 (1994).
C. J. Horowitz and J. Piekarewicz, “Neutron star structure and the neutron radius of 208Pb,” Phys. Rev. Lett. 86, 5647 (2004).
J. Schaffner and I. N. Mishustin, “Hyperon-rich matter in neutron stars,” Phys. Rev., C 53, 1416 (1995).
G. A. Lalazissis et al., New parametrization for the Lagrangian density of relativistic mean field theory," Phys. Rev., C 55, 540 (1997).
B. Todd-Rutel and J. Piekarewicz, “Neutron-rich nuclei and neutron stars: a new accurately calibrated interaction for the study of neutron-rich matter,” Phys. Rev. Lett. 95, 122501 (2005).
G. Baym et al., “The ground state of matter at high densities: equation of state and stellar models,” Astrophys. J. 170, 299 (1971).
G. Baym et al., “Neutron star matter,” Nucl. Phys., A 175, 225 (1971).
S. Weissenborn et al., “Hyperons and massive neutron stars: the role of hyperon potentials,” Nucl. Phys., A 881, 62 (2012).
S. Typel, G. Röpke, T. Klähn, D. Blaschke and H. H. Wolter. Composition and thermodynamics of nuclear matter with light clusters. Phys. Rev. C 81, 015803 (2010).
S. Benic, D. Blaschke, D. E. Alvarez-Castillo, T. Fischer and S. Typel. A new quark-hadron hybrid equation of state for astrophysics I. Highmass twin compact stars. Astronomy and Astrophysics (2014), (submitted); [arXiv:1411.2856 [astro-ph.HE]].
S. Bogdanov. The Nearest Millisecond Pulsar Revisited with XMMNewton: Improved Mass-radius Constraints for PSR J0437-4715. Astrophysical J. 762, iss. 2, 96 (2013).
F. S. Kitaura, H.-Th. Janka and W. Hillebrandt. Explosions of O-NeMg cores, the Crab supernova, and subluminous type II-P supernovae. Astron. Astrophys. 450, 1, 345, (2006).
P. Podsiadlowski, J. D. M. Dewi, P. Lesaffre, J. C. Miller, W. G. Newton and J. R. Stone, The Double pulsar J0737-3039: Testing the neutron star equation of state. Mon. Not. R. Astron. Soc (2005), vol. 361, p. 1243.
D. Blaschke, D. E. Alvarez-Castillo, S. Benic, G. Contrera, R. Lastowiecki. Nonlocal PNJL models and heavy hybrid stars. PoS ConfinementX (2012), 249; [arXiv:1302.6275 [hep-ph].
D. Blaschke, D. E. Alvarez-Castillo and S. Benic, Mass-radius constraints for compact stars and a critical endpoint. PoS CPOD 2013 (2013), 063; [arXiv: 1310.3803 [nucl-th]].
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Ayriyan, A., Alvarez-Castillo, D.E., Blaschke, D. et al. New Bayesian analysis of hybrid EoS constraints with mass-radius data for compact stars. Phys. Part. Nuclei 46, 854–857 (2015). https://doi.org/10.1134/S1063779615050044
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063779615050044