Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997atel....1....1k&link_type=abstract
The Astronomer's Telegram, #1
Astronomy and Astrophysics
Astronomy
3
X-Ray, Binaries, Pulsars
Scientific paper
The low-mass X-ray binary pulsar 4U 1626-67 shows quasi-periodic oscillations (QPOs) with a centroid frequency of 0.048 Hz and red noise variability as well as coherent pulsations at the 0.130 Hz neutron star rotation frequency. In power density spectra of observations made with the Rossi X-ray Timing Explorer, we have found significant sidebands at the frequencies (n*f_0 - f_qpo) and (n*f_0 + f_qpo), where f_0 = 0.130 Hz is the pulsar spin frequency, f_qpo = 0.048 Hz is the QPO frequency, and n = 1,2,3...
Chakrabarty Deepto
Kommers J.
Lewin Walter H. G.
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