Detailed Information on Publication Record
2021
Where is Love? Tidal deformability in the black hole limit
POSADA AGUIRRE, Nelson Camilo, Cecilia CHIRENTI and Victor GUEDESBasic information
Original name
Where is Love? Tidal deformability in the black hole limit
Authors
POSADA AGUIRRE, Nelson Camilo, Cecilia CHIRENTI and Victor GUEDES
Edition
RAGtime 23: 6-10 September, 2021 - Workshop on Black Holes and Neutron Stars, 2021
Other information
Language
English
Type of outcome
Prezentace na konferencích
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Organization unit
Institute of physics in Opava
Tags
Tags
International impact
Změněno: 14/11/2021 20:22, Ing. Petra Ryšavá
Abstract
V originále
One of the macroscopically measurable effects of gravity is the tidal deformability of astrophysical objects, which can be quantified by their tidal Love numbers. For planets and stars, these numbers measure the resistance of their material against the tidal forces, and the resulting contribution to their gravitational multipole moments. According to GR, nonrotating deformed BHs, instead, show no addition to their gravitational multipole moments, and all of their Love numbers are zero. Here I will discuss different configurations of nonrotating compact and ultracompact objects to bridge the compactness gap between BHs an NSs and calculate their Love number. For the first time we compute the Love number for uniform density ultracompact stars with compactness beyond the Buchdahl limit, and we find that the Love number approaches smoothly to zero as the compactness approaches the Schwarzschild limit. Our results provide insight on the zero tidal deformability limit.