2017
Innermost stable circular orbits around compact stars: Terms that are quadratic in spin
GOLUCHOVÁ, Kateřina; Gabriel TÖRÖK; Martin URBANEC; Gabriela URBANCOVÁ; Eva ŠRÁMKOVÁ et. al.Basic information
Original name
Innermost stable circular orbits around compact stars: Terms that are quadratic in spin
Authors
Edition
1. vyd. Opava (Česká republika), Proceedings of RAGtime 17–19: Workshops on black holes and neutron stars, 17–19/23–26 Oct., 1–5 Nov. 2015/2016/2017, Opava, Czech Republic, p. 23-32, 10 pp. 2017
Publisher
Slezská univerzita v Opavě, Filozoficko–přírodovědecká fakulta v Opavě, Ústav fyziky
Other information
Language
English
Type of outcome
Proceedings paper
Field of Study
10308 Astronomy
Country of publisher
Czech Republic
Confidentiality degree
is not subject to a state or trade secret
Publication form
printed version "print"
References:
RIV identification code
RIV/47813059:19240/17:A0000039
Organization unit
Faculty of Philosophy and Science in Opava
ISBN
978-80-7510-256-0
ISSN
EID Scopus
2-s2.0-85041838028
Keywords in English
X-rays: binaries; accretion; accretion disks; stars: neutron
Tags
International impact, Reviewed
Links
GA17-16287S, research and development project. GB14-37086G, research and development project. LTT17003, research and development project.
Changed: 6/4/2018 08:26, RNDr. Jan Hladík, Ph.D.
Abstract
In the original language
Orbital motion close to a rotating compact star is largely affected by strong gravity. Location of the innermost stable circular orbit (ISCO) is determined trough interplay between the effects of general relativity and the effects of Newtonian physics that are associated to oblateness of the compact star. The Keplerian frequency at this orbit may increase as well as decrease when the compact star angular momentum increases. In this context we explore behaviour of the ISCO frequency for compact star models calculated within the Hartle-Thorne spacetime approximation.