scholarly journals Detection of a Low-frequency Quasi-periodic Oscillation in the Soft State of Cygnus X-1 with Insight-HXMT

2021 ◽  
Vol 919 (1) ◽  
pp. 46
Author(s):  
Zhen Yan ◽  
Stefano Rapisarda ◽  
Wenfei Yu
Keyword(s):  
Low Frequency ◽  
Periodic Oscillation ◽  
Quasi Periodic Oscillation ◽  
Soft State

scholarly journals A NICER Discovery of a Low-frequency Quasi-periodic Oscillation in the Soft-intermediate State of MAXI J1535–571

2018 ◽  
Vol 865 (2) ◽  
pp. L15 ◽  
Author(s):  
A. L. Stevens ◽  
P. Uttley ◽  
D. Altamirano ◽  
Z. Arzoumanian ◽  
P. Bult ◽  
...  
Keyword(s):  
Intermediate State ◽  
Low Frequency ◽  
Periodic Oscillation ◽  
Quasi Periodic Oscillation

On the origin of the low-frequency QPO in GRS 1915+105 ρ state

2012 ◽  
Vol 8 (S291) ◽  
pp. 565-567
Author(s):  
Shu-Ping Yan ◽  
Na Wang ◽  
Guo-Qiang Ding
Keyword(s):  
Spectral Study ◽  
Timing Analysis ◽  
Low Frequency ◽  
Periodic Oscillation ◽  
Quasi Periodic Oscillation ◽  
Contrast Analysis

AbstractWe performed a phase-resolved timing analysis of GRS 1915+105 in its ρ state and identify detailed ρ cycle evolution of frequency, amplitude and coherence of the low-frequency quasi-periodic oscillation (LFQPO). We combined our timing results with the spectral study by Neilsen et al. (2011) to do an elaborate contrast analysis. The results are naturally explained by tying the LFQPO to the corona.

scholarly journals LOW-FREQUENCY QUASI-PERIODIC OSCILLATION FROM THE 11 Hz ACCRETING PULSAR IN TERZAN 5: NOT FRAME DRAGGING

2012 ◽  
Vol 759 (1) ◽  
pp. L20 ◽  
Author(s):  
D. Altamirano ◽  
A. Ingram ◽  
M. van der Klis ◽  
R. Wijnands ◽  
M. Linares ◽  
...  
Keyword(s):  
Low Frequency ◽  
Periodic Oscillation ◽  
Quasi Periodic Oscillation ◽  
Frame Dragging

scholarly journals Evidence for an Optical Low-frequency Quasi-periodic Oscillation in the Kepler Light Curve of an Active Galaxy

2018 ◽  
Vol 860 (1) ◽  
pp. L10 ◽  
Author(s):  
Krista Lynne Smith ◽  
Richard F. Mushotzky ◽  
Patricia T. Boyd ◽  
Robert V. Wagoner
Keyword(s):  
Light Curve ◽  
Low Frequency ◽  
Periodic Oscillation ◽  
Active Galaxy ◽  
Quasi Periodic Oscillation
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