Is there a link between the neutron-star spin and the frequency of the kilohertz quasi-periodic oscillations?

Mariano Méndez*, Tomaso Belloni

*Bijbehorende auteur voor dit werk

    Onderzoeksoutput: ArticleAcademicpeer review

    53 Citaten (Scopus)
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    There is a general consensus that the frequencies of the kilohertz quasi-periodic oscillations (kHz QPOs) in neutron-star low-mass X-ray binaries are directly linked to the spin of the neutron star. The root of this idea is the apparent clustering of the ratio of the frequency difference of the kHz QPOs, and the neutron-star spin frequency, Δν/νs, at around 0.5 and 1 in 10 systems for which these two quantities have been measured. Here, we re-examine all available data of sources for which there exist measurements of two simultaneous kHz QPOs and spin frequencies, and we advance the possibility that Δν and νs are not related to each other. We discuss ways in which this possibility could be tested with current and future observations.

    Originele taal-2English
    Pagina's (van-tot)790-796
    Aantal pagina's7
    TijdschriftMonthly Notices of the Royal Astronomical Society
    Nummer van het tijdschrift2
    StatusPublished - okt.-2007

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