About: A note on the slope-shift anticorrelation in the neutron star kHz QPOs data     Goto   Sponge   NotDistinct   Permalink

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  • Observations show that the upper and lower of the %22twin peak%22 high frequency QPOs in neutron star sources very along lines in a frequency-frequency plot, and that their ratios cluster near the value 3/2. This behaviour is well consistent with the predictions of the non-linear resonance model for QPOs. In this Note, we further explore our recent finding that the coefficients A, B of the frequency-frequency lines for individual sources are anticorrelated. In the (A, B) plane, they occupy rather a narrow region along the line A = 3/2 - B/600 Hz. We show that this observational property of QPOs also follows from the resonance model.
  • Observations show that the upper and lower of the %22twin peak%22 high frequency QPOs in neutron star sources very along lines in a frequency-frequency plot, and that their ratios cluster near the value 3/2. This behaviour is well consistent with the predictions of the non-linear resonance model for QPOs. In this Note, we further explore our recent finding that the coefficients A, B of the frequency-frequency lines for individual sources are anticorrelated. In the (A, B) plane, they occupy rather a narrow region along the line A = 3/2 - B/600 Hz. We show that this observational property of QPOs also follows from the resonance model. (en)
  • Pozorování ukazují, že horní $\nu_U$ a dolní $\nu_L$ „dvoupíkových“ vysokofrekvenčních QPO ve zdrojích neutronových hvězd se v grafu frekvence-frekvence mění podél přímky $\nu_U=A\nu_L+B$, a že jejich poměry $\nu_U/\nu_L $ se shlukují v blízkosti hodnoty 3/2. Toto chování je v dobrém souladu s předpovědmi nelineárního rezonančního modelu QPO. V této poznámce dále zkoumáme náš poslední poznatek, že koeficienty $A$, $B$ přímek v grafech frekvence-frekvence pro individuální zdroje jsou antikorelovány. V rovině $(A,B)$ zaujímají poměrně úzkou oblast podél linie $A=3/2-B/600$Hz. Ukazujeme, že tato observační vlastnost QPO taktéž vyplývá z rezonančního modelu. (cs)
Title
  • A note on the slope-shift anticorrelation in the neutron star kHz QPOs data
  • Poznámka k antikorelaci mezi sklonem a posuvem v kHz QPOs datech neutronových hvězd (cs)
  • A note on the slope-shift anticorrelation in the neutron star kHz QPOs data (en)
skos:prefLabel
  • A note on the slope-shift anticorrelation in the neutron star kHz QPOs data
  • Poznámka k antikorelaci mezi sklonem a posuvem v kHz QPOs datech neutronových hvězd (cs)
  • A note on the slope-shift anticorrelation in the neutron star kHz QPOs data (en)
skos:notation
  • RIV/47813059:19240/05:#0000771!RIV08-MSM-19240___
http://linked.open.../vavai/riv/strany
  • 1-9
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  • Z(MSM4781305903)
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  • 511003
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  • RIV/47813059:19240/05:#0000771
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  • LMXRB, neutron stars, X-ray variability, observations, theory (en)
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  • [6739AB15DB4A]
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  • Proceedings of RAGtime 6/7: Workshops on black holes and neutron stars
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  • Török, Gabriel
  • Abramowicz, Marek
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  • Slezská univerzita v Opavě. Filozoficko-přírodovědecká fakulta. Ústav fyziky
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  • 80-7248-334-X
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  • 19240
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