About: Confronting the Models of 3:2 QPOs with the Evidence of Near Extreme Kerr Black Hole

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://journals.cambridge.org/article_S1743921312019801
Description	The black hole mass and spin estimates assuming various specific models of the 3 : 2 high frequency quasi-periodic oscillations (HF QPOs) have been carried out in T¨or¨ok et al. (2005, 2011). Here we briefly summarize some current points. Spectral fitting of the spin a=cJ/GM2 in the microquasar GRS 1915+105 reveals that this system can contain a near extreme rotating black hole (e.g., McClintock et al., 2011). Confirming the high value of the spin would have significant consequences for the theory of the HF QPOs. The estimate of a > 0.9 is almost inconsistent with the relativistic precession (RP), tidal disruption (TD), and the warped disc (WD) model. The epicyclic resonance (Ep) and discoseismic models assuming the c- and g- modes are instead favoured. However, consideration of all three microquasars that display the 3 : 2 HF QPOs leads to a serious puzzle because the differences in the individual spins, such as a = 0.9 compared to a = 0.7, represent a generic problem almost for any unified orbital 3:2 QPO model. The black hole mass and spin estimates assuming various specific models of the 3 : 2 high frequency quasi-periodic oscillations (HF QPOs) have been carried out in T¨or¨ok et al. (2005, 2011). Here we briefly summarize some current points. Spectral fitting of the spin a=cJ/GM2 in the microquasar GRS 1915+105 reveals that this system can contain a near extreme rotating black hole (e.g., McClintock et al., 2011). Confirming the high value of the spin would have significant consequences for the theory of the HF QPOs. The estimate of a > 0.9 is almost inconsistent with the relativistic precession (RP), tidal disruption (TD), and the warped disc (WD) model. The epicyclic resonance (Ep) and discoseismic models assuming the c- and g- modes are instead favoured. However, consideration of all three microquasars that display the 3 : 2 HF QPOs leads to a serious puzzle because the differences in the individual spins, such as a = 0.9 compared to a = 0.7, represent a generic problem almost for any unified orbital 3:2 QPO model. (en)
Title	Confronting the Models of 3:2 QPOs with the Evidence of Near Extreme Kerr Black Hole Confronting the Models of 3:2 QPOs with the Evidence of Near Extreme Kerr Black Hole (en)
skos:prefLabel	Confronting the Models of 3:2 QPOs with the Evidence of Near Extreme Kerr Black Hole Confronting the Models of 3:2 QPOs with the Evidence of Near Extreme Kerr Black Hole (en)
skos:notation	RIV/47813059:19240/13:#0004627!RIV14-GA0-19240___
http://linked.open...avai/predkladatel	Filozoficko-přírodovědecká fakulta
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GPP209/12/P740)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Török, Gabriel Stuchlík, Zdeněk Šrámková, Eva Kotrlová, Andrea
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Slezská univerzita v Opavě / Filozoficko-přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	66726
http://linked.open...ai/riv/idVysledku	RIV/47813059:19240/13:#0004627
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	accretion; accretion disks; X-rays: binaries; black hole physics (en)
http://linked.open.../riv/klicoveSlovo	X-rays: binaries accretion accretion disks black hole physics
http://linked.open...ontrolniKodProRIV	[17350DA6323D]
http://linked.open...v/mistoKonaniAkce	Beijing, China
http://linked.open...i/riv/mistoVydani	Cambridge, UK
http://linked.open...i/riv/nazevZdroje	Proceedings of the International Astronomical Union, Symposium No. 290: Feeding compact objects: Accretion on all scales
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	High frequency quasi-periodic oscillations and compact object properties: theory vs. observation
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Kotrlová, Andrea Stuchlík, Zdeněk Šrámková, Eva Torok, Gabriel
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-08-20 (xsd:date)
issn	1743-9221
number of pages	2 (xsd:int)
http://bibframe.org/vocab/doi	10.1017/S1743921312019801
http://purl.org/ne...btex#hasPublisher	Cambridge University Press
https://schema.org/isbn	978-1-107-03379-5
http://localhost/t...ganizacniJednotka	19240

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