GOLUCHOVÁ, Kateřina, Gabriel TÖRÖK, Martin URBANEC, Gabriela URBANCOVÁ and Eva ŠRÁMKOVÁ. Innermost stable circular orbits around compact stars: Terms that are quadratic in spin. In Z. Stuchlík, G. Török a V. Karas. 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. 1st ed. Opava (Česká republika): Slezská univerzita v Opavě, Filozoficko–přírodovědecká fakulta v Opavě, Ústav fyziky, 2017, p. 23-32. ISBN 978-80-7510-256-0.
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Basic information
Original name Innermost stable circular orbits around compact stars: Terms that are quadratic in spin
Authors GOLUCHOVÁ, Kateřina (203 Czech Republic, guarantor, belonging to the institution), Gabriel TÖRÖK (203 Czech Republic, belonging to the institution), Martin URBANEC (203 Czech Republic, belonging to the institution), Gabriela URBANCOVÁ (203 Czech Republic, belonging to the institution) and Eva ŠRÁMKOVÁ (203 Czech Republic, belonging to the institution).
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
Original 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"
WWW RAGtime 17-19
RIV identification code RIV/47813059:19240/17:A0000039
Organization Filozoficko-přírodovědecká fakulta – Slezská univerzita v Opavě – Repository
ISBN 978-80-7510-256-0
ISSN 2336-5668
Keywords in English X-rays: binaries; accretion; accretion disks; stars: neutron
Tags ASTROCOMP, GA17-16287S, GB14-37086G, LTT17003, RAGtime 17-19, SGS-15-2016, ÚF
Tags International impact, Reviewed
Links GA17-16287S, research and development project. GB14-37086G, research and development project. LTT17003, research and development project.
Changed by Changed by: Jan Hladík, učo 1305. Changed: 6/4/2018 08:26.
Abstract
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.
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