# Compact stars in the QCD phase diagram VI <br><small><small>(Cosmic matter in heavy-ion collision laboratories?)</small></small>

26-29 September 2017
DUBNA
Europe/Moscow timezone

## Cooling of massive neutron stars

29 Sep 2017, 11:15
40m
Blokhintsev Hall (4rd floor, BLTP) (DUBNA)

DUBNA RUSSIA

### Speaker

Dr Hovik Grigorian (JINR)

### Description

The existence of the high mass pulsars PSR J1614-2230 and PSR J0348-0432 with masses of about 2 $M_sun$ requires a sufficiently stiff equation of state (EoS) of the stellar matter to fulfil this constraint. We succeeded to explain the thermal evolution of compact stars with stiff hadronic EoS in the framework of the nuclear medium cooling" scenario. We have also investigated the case when due to phase transition to quark matter the third family of compact stars for higher densities can exist. In this case high-mass twin stars could show different cooling behaviour. The cooling scenarios have a discriminating power for selection of optimal EoS models for compact stars.

 Slides