The Structure and Signals of Neutron Stars, from Birth to Death

Session

Evening session - Parallel A

27 Mar 2014, 16:15

Conveners

Evening session - Parallel A

• Nathalie Degenaar (Ann Arbor, Michigan Univ., USA)

66. Neutron stars with hyperon cores: stellar radii and EOS near nuclear density

Prof. Pawel Haensel (Nicholaus Copernicus Astronomical Centre, Warsaw, Poland)

27/03/2014, 16:15

We study the impact of the presence of a hyperon core on the R-M relation for neutron stars (NS). Using observational constraint Mmax>2Msun, and available EOSs, we show difference between R-M relation in the mass range 1.2 - 1.6 Msun between NS with nucleon cores and those based on EOS that allow for sizable hyperon cores in high mass NS. We find correlation between pressure at...

2. The neutron star radius and the dense-matter equation of state

Sebastien Guillot (M)

27/03/2014, 16:35

A physical understanding of the behaviour of cold ultra-dense matter - at and above nuclear density - can only be achieved by the study of neutron stars, and the thermal emission from quiescent low-mass X-ray binaries inside globular clusters have proven very useful for that purpose. The recent 1.97±0.04 Msun measurement for the radio pulsar PSR 1614-2230 suggests that strange quark matter and...

101. The birth of quark stars

Giuseppe Pagliara

27/03/2014, 16:55

The possible existence of two families of compact stars, neutron stars and quark stars, naturally leads to a scenario in which a conversion process between the two stellar objects occurs with a consequent release of energy of the order of 10^53 erg. We discuss recent hydrodynamical simulations of the burning process and neutrino diffusion simulations of cooling of a newly formed strange star....