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Statements

Subject Item
n2:RIV%2F47813059%3A19240%2F11%3A%230004068%21RIV12-GA0-19240___
rdf:type
n6:Vysledek skos:Concept
dcterms:description
Exchange of dominance between twin kHz quasi-periodic oscillations (QPOs) observed in some low-mass-X-ray-binaries (LMXBs) suggests the possibility of a resonance between two oscillatory modes. We study the behaviour of the effective gravitational potential around specific resonant radii, and estimate the role of the higher-order terms governing the non-linear, anharmonic forcing. We discuss the impact it has on the mode amplitude in the linear and non-linear regimes. We also discuss a related possibility of lowering of the neutron star mass estimates from the highest observed QPO frequencies. Exchange of dominance between twin kHz quasi-periodic oscillations (QPOs) observed in some low-mass-X-ray-binaries (LMXBs) suggests the possibility of a resonance between two oscillatory modes. We study the behaviour of the effective gravitational potential around specific resonant radii, and estimate the role of the higher-order terms governing the non-linear, anharmonic forcing. We discuss the impact it has on the mode amplitude in the linear and non-linear regimes. We also discuss a related possibility of lowering of the neutron star mass estimates from the highest observed QPO frequencies.
dcterms:title
Resonant radii of kHz quasi-periodic oscillations in Keplerian discs orbiting neutron stars Resonant radii of kHz quasi-periodic oscillations in Keplerian discs orbiting neutron stars
skos:prefLabel
Resonant radii of kHz quasi-periodic oscillations in Keplerian discs orbiting neutron stars Resonant radii of kHz quasi-periodic oscillations in Keplerian discs orbiting neutron stars
skos:notation
RIV/47813059:19240/11:#0004068!RIV12-GA0-19240___
n6:predkladatel
n7:orjk%3A19240
n3:aktivita
n12:Z n12:S n12:P
n3:aktivity
P(GA202/09/0772), P(LC06014), S, Z(MSM4781305903)
n3:cisloPeriodika
A82
n3:dodaniDat
n13:2012
n3:domaciTvurceVysledku
n4:1183745 n4:5038901 n4:7083181
n3:druhVysledku
n15:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n21:predkladatel
n3:idSjednocenehoVysledku
226756
n3:idVysledku
RIV/47813059:19240/11:#0004068
n3:jazykVysledku
n19:eng
n3:klicovaSlova
accretion, accretion disks, stars: neutron, X-rays: binaries
n3:klicoveSlovo
n8:accretion n8:accretion%20disks n8:stars%3A%20neutron n8:X-rays%3A%20binaries
n3:kodStatuVydavatele
FR - Francouzská republika
n3:kontrolniKodProRIV
[69603A805324]
n3:nazevZdroje
ASTRONOMY & ASTROPHYSICS
n3:obor
n17:BE
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n10:GA202%2F09%2F0772 n10:LC06014
n3:rokUplatneniVysledku
n13:2011
n3:svazekPeriodika
525
n3:tvurceVysledku
Kotrlová, Andrea Stuchlík, Zdeněk Török, Gabriel
n3:zamer
n20:MSM4781305903
s:issn
0004-6361
s:numberOfPages
5
n18:doi
10.1051/0004-6361/201015029
n11:organizacniJednotka
19240