TY  - INPR
A1  - Lyra, Felipe Palmeira
A1  - Moreira, Lourival
A1  - Negreiros, Rodrigo Picanco
A1  - Gomes, Rosana de Oliveira
A1  - Dexheimer, Verônica Antocheviz
T1  - Compactness in the thermal evolution of twin stars
T2  - arXiv
N2  - In this work, we study for the first time the thermal evolution of twin star pairs, i.e., stars that present the same mass but different radius and compactness. We collect available equations of state that give origin to a second branch of stable compact stars with quarks in their core. For each equation of state, we investigate the particle composition inside stars and how differently each twin evolves over time, which depends on the central density/pressure and consequent crossing of the threshold for the Urca cooling process. We find that, although the general stellar thermal evolution depends on mass and particle composition, withing one equation of state, only twin pairs that differ considerably on compactness can be clearly distinguished by how they cool down.
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/86414
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-864147
UR  - https://arxiv.org/abs/2206.01679v1
IS  - 2206.01679v1
PB  - arXiv
ER  -