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Compact star oscillations in the gravitational wave era

Grant number: 18/04281-8
Support type:Scholarships in Brazil - Master
Effective date (Start): June 01, 2018
Effective date (End): July 31, 2020
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Stellar Astrophysics
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Germán Lugones
Grantee:Lucas Tonetto Coimbra
Home Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil
Associated scholarship(s):19/15124-3 - Linking the dense matter equation of state with quasi-normal modes of compact stars, BE.EP.MS


The objective of this project is to investigate non-radial oscillations of hybrid compact stars taking into account the role of rapid and slow phase conversions at the quark-hadron interface. We will focus first on calculations within the Cowling approximation, and then we will employ the full set of relativistic equations governing the quasi-normal modes of static compact stars. We will try to identify potentially observable features that can be associated with the gravitational wave emission of compact stars. (AU)

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Scientific publications
(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)
PEREIRA, JONAS P.; BEJGER, MICHAL; TONETTO, LUCAS; LUGONES, GERMAN; HAENSEL, PAWEL; ZDUNIK, JULIAN LESZEK; SIENIAWSKA, MAGDALENA. Probing Elastic Quark Phases in Hybrid Stars with Radius Measurements. ASTROPHYSICAL JOURNAL, v. 910, n. 2 APR 2021. Web of Science Citations: 0.
TONETTO, L.; LUGONES, G. Discontinuity gravity modes in hybrid stars: Assessing the role of rapid and slow phase conversions. Physical Review D, v. 101, n. 12 JUN 29 2020. Web of Science Citations: 0.

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