Confronting the models of 3 : 2 QPOs with the evidence of near
extreme kerr black hole (Conference Paper)

D 2012

Confronting the models of 3 : 2 QPOs with the evidence of near extreme kerr black hole (Conference Paper)

KOTRLOVÁ, Andrea; Zdeněk STUCHLÍK; Eva ŠRÁMKOVÁ a Gabriel TÖRÖK

Základní údaje

Originální název

Confronting the models of 3 : 2 QPOs with the evidence of near extreme kerr black hole (Conference Paper)

Autoři

KOTRLOVÁ, Andrea; Zdeněk STUCHLÍK; Eva ŠRÁMKOVÁ a Gabriel TÖRÖK

Vydání

Cambridge, UK, Proceedings of the International Astronomical Union, od s. 239-240, 2 s. 2012

Nakladatel

Cambridge University Press

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10308 Astronomy

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Organizační jednotka

Filozoficko-přírodovědecká fakulta v Opavě

ISBN

978-1-107-03379-5

ISSN

DOI

https://doi.org/10.1017/S1743921312019801

EID Scopus

2-s2.0-84874423967

Klíčová slova anglicky

Accretion; Accretion disks; Black hole physics; X-rays: binaries

Štítky

sbornik, UF

Příznaky

Mezinárodní význam

Návaznosti

GPP209/12/P740, projekt VaV.

Změněno: 7. 12. 2020 14:42, Mgr. Pavlína Jalůvková

Anotace

V originále

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 Török et al. (2005, 2011). Here we briefly summarize some current points. Spectral fittingof the spin a = cJ/GM 2 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 ofthe 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 an

Citovat

KOTRLOVÁ, Andrea; Zdeněk STUCHLÍK; Eva ŠRÁMKOVÁ a Gabriel TÖRÖK. Confronting the models of 3 : 2 QPOs with the evidence of near extreme kerr black hole (Conference Paper). In Proceedings of the International Astronomical Union. Cambridge, UK: Cambridge University Press, 2012, s. 239-240. ISBN 978-1-107-03379-5. Dostupné z: https://doi.org/10.1017/S1743921312019801.

@inproceedings{42722,
   author = {Kotrlová, Andrea and Stuchlík, Zdeněk and Šrámková, Eva and Török, Gabriel},
   address = {Cambridge, UK},
   booktitle = {Proceedings of the International Astronomical Union},
   doi = {https://doi.org/10.1017/S1743921312019801},
   keywords = {Accretion; Accretion disks; Black hole physics; X-rays: binaries},
   language = {eng},
   location = {Cambridge, UK},
   isbn = {978-1-107-03379-5},
   pages = {239-240},
   publisher = {Cambridge University Press},
   title = {Confronting the models of 3 : 2 QPOs with the evidence of near extreme kerr black hole (Conference Paper)},
   year = {2012}
}

TY  - CONF
ID  - 42722
AU  - Kotrlová, Andrea - Stuchlík, Zdeněk - Šrámková, Eva - Török, Gabriel
PY  - 2012
TI  - Confronting the models of 3 : 2 QPOs with the evidence of near extreme kerr black hole (Conference Paper)
PB  - Cambridge University Press
CY  - Cambridge, UK
SN  - 9781107033795
KW  - Accretion
KW  - Accretion disks
KW  - Black hole physics
KW  - X-rays: binaries
N2  - 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 Török et al. (2005, 2011). Here we briefly summarize some current points. Spectral fittingof the spin a = cJ/GM 2 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 ofthe 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 an
ER  -

KOTRLOVÁ, Andrea; Zdeněk STUCHLÍK; Eva ŠRÁMKOVÁ a Gabriel TÖRÖK. Confronting the models of 3 : 2 QPOs with the evidence of near extreme kerr black hole (Conference Paper). In \textit{Proceedings of the International Astronomical Union}. Cambridge, UK: Cambridge University Press, 2012, s.~239-240. ISBN~978-1-107-03379-5. Dostupné z: https://doi.org/10.1017/S1743921312019801.

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