Banca de DEFESA: JÚLIO LANSE SILVERIO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JÚLIO LANSE SILVERIO
DATE: 12/02/2025
TIME: 10:00
LOCAL: Sala 302A do Bloco B do Campus de Santo André da Universidade Federal do ABC
TITLE:

Excluded volume and isospin in dense quark matter: effects on the properties of hybrid stars.

PAGES: 60
BIG AREA: Ciências Exatas e da Terra
AREA: Astronomia
SUBÁREA: Astrofísica Estelar
SUMMARY:

A systematic study of hybrid stars composed of quarks and hadrons was conducted using an equation of state for quark matter based on the QMDDM (quark-mass density-dependent model). In this model, quarks are treated as quasi-particles whose mass depends on the properties of the medium. The main advancement of this work is the extension of the QMDDM to include isospin dependence in the effective mass of quarks, as well as the effect of excluded volume due to repulsive interactions between quarks. The impact of these modifications on some global properties of hybrid stars, such as the mass-radius relation and tidal deformabilities, was analyzed. The theoretical predictions of the model were compared with the results of recent astrophysical observations, including the GW170817 gravitational wave event, associated with the merger of two neutron stars, and recent pulsar measurements.

COMMITTEE MEMBERS:
Presidente - Interno ao Programa - 1549709 - GERMAN LUGONES
Membro Titular - Examinador(a) Interno ao Programa - 2604186 - FRANCISCO EUGENIO MENDONCA DA SILVEIRA
Membro Titular - Examinador(a) Externo à Instituição - ANA GABRIELA GRUNFELD
Membro Suplente - Examinador(a) Externo à Instituição - CÉSAR HENRIQUE LENZI - ITA
Membro Suplente - Examinador(a) Externo à Instituição - CÉSAR OSWALDO VÁSQUEZ FLORES