Compact star oscillations in the gravitational wave era

• Grant number: 18/04281-8
• Support Opportunities: Scholarships in Brazil - Master
• Start date: June 01, 2018
• End date: July 31, 2020
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Stellar Astrophysics
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Germán Lugones
• Grantee: Lucas Tonetto Coimbra
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). 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

Abstract

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.

Scientific publications

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

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. (18/04281-8)

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. (18/04281-8, 17/21384-2, 19/15124-3, 15/04174-9)

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, p. 12-pg., 2020-06-29. (18/04281-8)