We report the discovery of a kilohertz quasi-periodic oscillation (kHz QPO) in the low-mass X-ray binary (LMXB) 2S 0918-549. The kHz QPO has a frequency of 1156 ± 9 Hz, an FWHM of 70 ± 20 Hz, and a fractional rms amplitude of 18% ± 2%. We also detected for the first time a type I X-ray burst in this source. The compact object must therefore be a neutron star. Finally, we were able to classify the source as an atoll source exhibiting the full complement of spectral/timing states of this class (island and banana). From the peak burst flux, an upper limit on the persistent luminosity can be derived of 0.5% of the Eddington luminosity, making 2S 0918-549 one of the least luminous LMXBs showing a kHz QPO. We compare the fractional rms amplitudes...
We report the discovery with the RXTE/PCA of twin kHz QPOs in Cir X-1. Eleven cases of simultaneous ...
We report three RXTE/PCA observations of the low-mass X-ray binary 4U 0614+09. They show strong ( ~3...
We discovered a single kHz quasi-periodic oscillation (QPO) near 1150 Hz in the Rossi X-ray Timing E...
We report the discovery of a kilohertz quasi-periodic oscillation (kHz QPO) in the low-mass X-ray bi...
We report the discovery of millihertz quasi-periodic oscillations (mHz QPOs) from the bursting, high...
We have observed the ultracompact low-mass X-ray binary (LMXB) 1A 1246-588 with the Rossi X-ray Timi...
We study the energy-dependent time lags and rms fractional amplitude of the kilohertz quasi-periodic...
We report three RXTE/PCA observations of the low-mass X-ray binary 4U 0614+09. They show strong (~30...
In observations with the Rossi X-ray Timing Explorer we have discovered quasi-periodic oscillations ...
We report the discovery of millihertz quasi-periodic oscillations (mHz QPOs) from the bursting, high...
Using archival Rossi X-ray Timing Explorer (RXTE) data, we studied the low-frequency quasi-periodic ...
We report the discovery with the RXTE/PCA of twin kHz QPOs in Cir X-1. Eleven cases of simultaneous ...
We report three RXTE/PCA observations of the low-mass X-ray binary 4U 0614+09. They show strong ( ~3...
We discovered a single kHz quasi-periodic oscillation (QPO) near 1150 Hz in the Rossi X-ray Timing E...
We report the discovery of a kilohertz quasi-periodic oscillation (kHz QPO) in the low-mass X-ray bi...
We report the discovery of millihertz quasi-periodic oscillations (mHz QPOs) from the bursting, high...
We have observed the ultracompact low-mass X-ray binary (LMXB) 1A 1246-588 with the Rossi X-ray Timi...
We study the energy-dependent time lags and rms fractional amplitude of the kilohertz quasi-periodic...
We report three RXTE/PCA observations of the low-mass X-ray binary 4U 0614+09. They show strong (~30...
In observations with the Rossi X-ray Timing Explorer we have discovered quasi-periodic oscillations ...
We report the discovery of millihertz quasi-periodic oscillations (mHz QPOs) from the bursting, high...
Using archival Rossi X-ray Timing Explorer (RXTE) data, we studied the low-frequency quasi-periodic ...
We report the discovery with the RXTE/PCA of twin kHz QPOs in Cir X-1. Eleven cases of simultaneous ...
We report three RXTE/PCA observations of the low-mass X-ray binary 4U 0614+09. They show strong ( ~3...
We discovered a single kHz quasi-periodic oscillation (QPO) near 1150 Hz in the Rossi X-ray Timing E...