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Linking the dense matter equation of state with quasi-normal modes of compact stars

Grant number: 19/15124-3
Support type:Scholarships abroad - Research Internship - Master's degree
Effective date (Start): October 01, 2019
Effective date (End): March 20, 2020
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Stellar Astrophysics
Principal Investigator:Germán Lugones
Grantee:Lucas Tonetto Coimbra
Supervisor abroad: Leonardo Gualtieri
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 : Università degli Studi di Roma La Sapienza, Italy  
Associated to the scholarship:18/04281-8 - Compact star oscillations in the gravitational wave era, BP.MS


Within the present project, we will analyze the quasi-normal modes of compact stars using an equation of state which has been obtained within non-relativistic many-body theory, using an updated and improved version of the effective interaction based on the Argonne-Urbana nuclear Hamiltonian, derived using the formalism of correlated basis functions and the cluster expansion technique. The main goal is to devise a way of extracting information on the equation of state of neutron stars from observations of its gravitational wave emission, in particular the frequencies and damping times of its quasi-normal modes.