Abstract
We reported the discovery of a new, third kHz quasi-periodic oscillation (kHz QPO) in the power spectra of three atoll sources. This new kHz QPO is present simultaneously with the previously-known kHz QPO pair. The new kHz QPO is found at a frequency that is 52.8±0.9 Hz, 64±2 Hz, 58.4±1.9 Hz higher than the frequency of the lower kHz QPO in the neutron star low-mass X-ray binaries 4U 1608-52, 4U 1728-34, and 4U 1636-53, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.