J 2008

Distribution of Kilohertz QPO Frequencies and Their Ratios in the Atoll Source 4U 1636-53

ABRAMOWICZ, Marek, Pavel BAKALA, Zdeněk STUCHLÍK a Gabriel TÖRÖK

Základní údaje

Originální název

Distribution of Kilohertz QPO Frequencies and Their Ratios in the Atoll Source 4U 1636-53

Název anglicky

Distribution of Kilohertz QPO Frequencies and Their Ratios in the Atoll Source 4U 1636-53

Autoři

Vydání

Acta Astronomica, PL - Polská republika, 2008, 0001-5237

Další údaje

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Utajení

není předmětem státního či obchodního tajemství

Organizační jednotka

Fyzikální ústav v Opavě

UT WoS

000255383600002

Klíčová slova anglicky

QPO, frequency ratio

Štítky

Příznaky

Mezinárodní význam, Recenzováno

Návaznosti

LC06014, projekt VaV. MSM4781305903, záměr.
Změněno: 6. 4. 2021 13:31, Mgr. Pavlína Jalůvková

Anotace

ORIG EN

V originále

We find that the distribution of the ratio of actually observed pairs of kHz QPO frequencies is peaked close to the 3/2 value, and possibly also close to the 5/4 ratio. To resolve the apparent contradiction between the two studies, we examine in detail the frequency distributions of the lower kHz QPO and the upper kHz QPO detected in our data set. We demonstrate that for each of the two kHz QPOs (the lower or the upper), the frequency distribution in all detections of a QPO differs from the distributionof frequency of the same QPO in the subset of observations where both the kHz QPOs are detected. We conclude that detections of individual QPOs alone should not be used for calculation of the distribution of the frequency ratios.

Anglicky

We find that the distribution of the ratio of actually observed pairs of kHz QPO frequencies is peaked close to the 3/2 value, and possibly also close to the 5/4 ratio. To resolve the apparent contradiction between the two studies, we examine in detail the frequency distributions of the lower kHz QPO and the upper kHz QPO detected in our data set. We demonstrate that for each of the two kHz QPOs (the lower or the upper), the frequency distribution in all detections of a QPO differs from the distributionof frequency of the same QPO in the subset of observations where both the kHz QPOs are detected. We conclude that detections of individual QPOs alone should not be used for calculation of the distribution of the frequency ratios.