Rudy Wijnands and Michiel van der Klis reported persistent millisecond X-ray pulsations in an accreting neutron star system using a fast timing instrument.[ref]
Discovery of the first accretion-powered millisecond X-ray pulsar by Rudy Wijnands and Michiel van der Klis. Abstract: coherent pulsations detected with the Rossi X-ray Timing Explorer
A stable pulse train supplies evidence of rapid rotation that differs from a broad quasi-periodic feature. The observation connects accretion-powered systems with the spin-up interpretation of a recycled pulsar, while the origin of an individual timing feature still requires a physical model.
Rudy Wijnands is a Dutch physicist known for his work in the field of astrophysics and high-energy astrophysics. His research often focuses on phenomena related to black holes, neutron stars, and various aspects of X-ray astronomy. However, if you are looking for specific contributions or achievements of Rudy Wijnands, could you provide more context or details?
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