Models of quasi-periodic oscillations related to mass and spin of the GRO J1655-40 black hole

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F16%3AN0000024" target="_blank" >RIV/47813059:19240/16:N0000024 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.aanda.org/articles/aa/abs/2016/02/aa26095-15/aa26095-15.html" target="_blank" >http://www.aanda.org/articles/aa/abs/2016/02/aa26095-15/aa26095-15.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201526095" target="_blank" >10.1051/0004-6361/201526095</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Models of quasi-periodic oscillations related to mass and spin of the GRO J1655-40 black hole

Popis výsledku v původním jazyce

Frequencies of the three quasi-periodic oscillation (QPO) modes observed simultaneously in the accreting black hole GRO J1655-40 are compared with the predictions of models. Models in which all three QPO signals are produced at the same radius are considered: these include different versions of relativistic precession, epicyclic resonance, tidal disruption, and warped disc models. Models that were originally proposed to interpret only the twin high-frequency QPOs are generalized here to interpret also the low-frequency QPO in terms of relativistic nodal precession. Inferred values of the black hole mass and spin from each QPO model are compared with the mass measured from optical observations and the spin inferred from X-ray spectroscopy techniques. We find that along with the relativistic precession model predicting $M = (5.3 +/- 0.1) M_{circle dot}$, $a = 0.286 +/- 0.004$, the so-called total precession model ($M = (5.5 +/- 0.1) M_{circle dot}$, $a = 0.276 +/- 0.003$), and the resonance epicyclic model with beat frequency ($M = (5.1 +/- 0.1) M_{circle dot}$, $a = 0.274 +/- 0.003$) also satisfy the optical mass test.

Název v anglickém jazyce

Models of quasi-periodic oscillations related to mass and spin of the GRO J1655-40 black hole

Popis výsledku anglicky

Frequencies of the three quasi-periodic oscillation (QPO) modes observed simultaneously in the accreting black hole GRO J1655-40 are compared with the predictions of models. Models in which all three QPO signals are produced at the same radius are considered: these include different versions of relativistic precession, epicyclic resonance, tidal disruption, and warped disc models. Models that were originally proposed to interpret only the twin high-frequency QPOs are generalized here to interpret also the low-frequency QPO in terms of relativistic nodal precession. Inferred values of the black hole mass and spin from each QPO model are compared with the mass measured from optical observations and the spin inferred from X-ray spectroscopy techniques. We find that along with the relativistic precession model predicting $M = (5.3 +/- 0.1) M_{circle dot}$, $a = 0.286 +/- 0.004$, the so-called total precession model ($M = (5.5 +/- 0.1) M_{circle dot}$, $a = 0.276 +/- 0.003$), and the resonance epicyclic model with beat frequency ($M = (5.1 +/- 0.1) M_{circle dot}$, $a = 0.274 +/- 0.003$) also satisfy the optical mass test.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

—

Projekt

<a href="/cs/project/GB14-37086G" target="_blank" >GB14-37086G: Centrum Alberta Einsteina pro gravitaci a astrofyziku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomy & Astrophysics

ISSN

1432-0746

e-ISSN

—

Svazek periodika

586

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

6

Strana od-do

'A130-1'-'A130-6'

Kód UT WoS článku

000369715900140

EID výsledku v databázi Scopus

2-s2.0-84957599016