Detailed Information on Publication Record
2019
Anisotropic ultracompact Schwarzschild star by gravitational decoupling
OVALLE ARAYA, Jorge Iván, Nelson Camilo POSADA AGUIRRE and Zdeněk STUCHLÍKBasic information
Original name
Anisotropic ultracompact Schwarzschild star by gravitational decoupling
Authors
OVALLE ARAYA, Jorge Iván (152 Chile, guarantor, belonging to the institution), Nelson Camilo POSADA AGUIRRE (170 Colombia, belonging to the institution) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)
Edition
Classical and Quantum Gravity, 2019, 0264-9381
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/47813059:19240/19:A0000412
Organization unit
Faculty of Philosophy and Science in Opava
UT WoS
000488086200002
Keywords in English
black-hole; interior solution; gravitational-decoupling; gravastar
Tags
Tags
International impact, Reviewed
Links
GA19-03950S, research and development project.
Změněno: 21/4/2020 10:27, Ing. Petra Skoumalová
Abstract
V originále
We employ the minimal geometric deformation approach to gravitational decoupling (MGD-decoupling) in order to generate an exact anisotropic and non-uniform version of the ultracompact Schwarzschild star, or "gravastar", proposed by Mazur and Mottola. This new system represents an ultracompact configuration of radius R_S = 2M whose interior metric can be matched smoothly to a conformally deformed Schwarcschild exterior. Remarkably, the model satisfies some of the basic requirements to describe a physically acceptable stellar model, such as a positive density everywhere and decreasing monotonously from the centre, as well as a non-uniform and monotonic pressure.