A study on the long term periodicities among the X-ray binaries: Two new superorbital periods

Details A study on the long term periodicities among the X-ray binaries: Two new superorbital periods A study on the long term periodicities among the X-ray binaries: Two new superorbital periods

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010an....331..300o&link_type=abstract

Astronomische Nachrichten, Vol.331, Issue 3, p.300

Astronomy and Astrophysics

Astronomy

1

X-Rays: Binaries, X-Rays: Individuals (Gx354-0, X Persei)

Scientific paper

Long term behaviours of a few selected X-ray binaries are studied on the basis of RXTE/ASM archive covering a period of ˜13 years of continuous X-ray data. Two new superorbital periods seem to be revealed for the GX354-0 and X Persei systems as 8.7 years and 345 days, respectively. Although the X Persei system has two strongest peaks in its power density spectrum at 15.7 years and at 345 days, the latter is much more plausible. The GX354-0 system also has few additional periodicities appeared in different time intervals.

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