5 papers
Ultracompact X-Ray Binaries with Neon-Rich Degenerate Donors
Adrienne M. Juett, Dimitrios Psaltis, Deepto Chakrabarty
There are three low-mass X-ray binaries (4U 0614+091, 2S 0918-549, and 4U 1543-624) for which broad line emission near 0.7 keV was previously reported. A recent high-resolution obs…
A varying kHz peak separation in 4U 1608-52
M. Mendez, M. van der Klis, J. van Paradijs +6
Using a new technique to improve the sensitivity to weak Quasi-Periodic Oscillations (QPO) we discovered a new QPO peak at about 1100 Hz in the March 1996 outburst observations of…
Discovery of a second kHz QPO peak in 4U 1608-52
M. Mendez, M. van der Klis, J. van Paradijs +6
Using a new technique to improve the sensitivity to weak Quasi-Periodic Oscillations (QPO) we discovered a new QPO peak at about 1100 Hz in the March 1996 outburst observations of…
Discovery of microsecond time lags in kilohertz QPO
Brian A. Vaughan, Michiel van der Klis, Mariano Mendez +7
Using the Rossi X-ray Timing Explorer we have measured 27 microsecond time delays in 830 Hz quasi-periodic oscillations (QPO) between 4-6 keV and 11-17 keV in 4U 1608-52, with high…
Sonic-Point Model of Kilohertz Quasi-Periodic Brightness Oscillations in Low-Mass X-ray Binaries
M. Coleman Miller, Frederick K. Lamb, Dimitrios Psaltis
Strong, coherent, quasi-periodic brightness oscillations (QPOs) with frequencies ranging from about 300 Hz to 1200 Hz have been discovered with the Rossi X-ray Timing Explorer in t…