Asteroseismology of quasi-periodic oscillations and constraints to hybrid neutron star models

• Grant number: 17/21384-2
• Support type: Scholarships abroad - Research Internship - Post-doctor
• Effective date (Start): January 30, 2018
• Effective date (End): January 29, 2019
• Field of knowledge: Physical Sciences and Mathematics - Astronomy
• Principal Investigator: Germán Lugones
• Grantee: Jonas Pedro Pereira
• Supervisor abroad: Nils Andersson
• Home Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil
• Local de pesquisa : University of Southampton, England
• Associated to the scholarship: 15/04174-9 - Some consequences of the microphysics of volumes and surfaces in compact systems, BP.PD

Abstract

We propose a year long postdoctoral visit to the University of Southampton in order to interact with Prof. Nils Andersson on quasi-periodic oscillations (QPOs) in isolated neutron stars as axial (shear, torsional) perturbations and the constraints this brings to compact stellar models. Special attention will be paid to the imprints and byproducts of microphysical aspects of volumes and surfaces of hybrid (stratified) stars on QPOs. This is in total consonance with the current FAPESP project of the candidate and Prof. Nils Andersson's lines of research.

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE LORENCI, V. A.; FERREIRA JUNIOR, A. L.; PEREIRA, J. P. Trirefringence in nonlinear magnetoelectric metamaterials revisited. Physical Review A, v. 99, n. 5 MAY 28 2019. Web of Science Citations: 0.

PEREIRA, JONAS P.; LUGONES, GERMAN. General Relativistic Surface Degrees of Freedom in Perturbed Hybrid Stars. ASTROPHYSICAL JOURNAL, v. 871, n. 1 JAN 20 2019. Web of Science Citations: 0.

PEREIRA, JONAS P.; FLORES, CESAR V.; LUGONES, GERMAN. Phase Transition Effects on the Dynamical Stability of Hybrid Neutron Stars. ASTROPHYSICAL JOURNAL, v. 860, n. 1 JUN 10 2018. Web of Science Citations: 4.

PEREIRA, JONAS P.; COELHO, JAZIEL G.; DE LIMA, RAFAEL C. R. Born-Infeld magnetars: larger than classical toroidal magnetic fields and implications for gravitational-wave astronomy. EUROPEAN PHYSICAL JOURNAL C, v. 78, n. 5 MAY 8 2018. Web of Science Citations: 0.