The energy dependence of the centroid frequency and phase lag of the QPOs in GRS 1915+105

Abstract

We present a study of the centroid frequencies and phase lags of the quasi-periodic oscillations (QPOs) as functions of photon energy for GRS 1915+105. It is found that the centroid frequencies of the 0.5-10 Hz QPOs and their phase lags are both energy dependent, and there exists an anti-correlation between the QPO frequency and phase lag. These new results challenge the popular QPO models, because none of them can fully explain the observed properties. We suggest that the observed QPO phase lags are partially due to the variation of the QPO frequency with energy, especially for those with frequency higher than 3.5 Hz.

Accepted for publication by the ApJ; 29 pages, 5 figures, 5 tables

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• Evidence for a Link Between Fe K-alpha Emission Line Strength and QPO Phase in a Black Hole
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• Hydrodynamic simulations of viscous accretion flows around black holes
• ALMA/NICER observations of GRS 1915+105 indicate a return to a hard state
• Quasi-periodic oscillations under wavelet microscope: the application of Matching Pursuit algorithm
• A Systematic Study on Energy Dependence of Quasi-Periodic Oscillation Frequency in GRS 1915+105
• Alternating lags of QPO harmonics : A Generic model and its application to the 67 millihertz QPO of GRS 1915+105
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• State transitions of GX 339-4 during its outburst rising phase
• Stochastic variability in X-ray emission from the black hole binary GRS 1915+105
• Temporal Evolution of Photon Energy emitted from Two Component Advective Flows: Origin of Time Lag
• Anti-correlated Soft Lags in the Intermediate State of Black Hole Source GX 339-4
• The evolution of the high-frequency variability in the black hole candidate GRS 1915+105 as seen by RXTE
• Evolution of Accretion Disc Geometry of GRS~1915+105 during its $\chi$ state as revealed by TCAF solution
• Determination of QPO properties in the presence of strong broad-band noise: a case study on the data of MAXI J1820+070
• Disc-corona interaction in the heartbeat state of GRS 1915+105
• A timing view of the heartbeat state of GRS 1915+105
• An Insight-HXMT view of the mHz quasi-regular modulation phenomenon in the black hole X-ray binary 4U 1630-47
• The NuSTAR View of a QPO Evolution of GRS 1915+105
• The X-ray view of black-hole candidate Swift J1842.5-1124 during its 2008 outburst
• Phase-resolved spectral analysis of the 11 millihertz quasi-periodic oscillation in the black-hole candidate H1743-322
• Phase-Resolved Timing Analysis of GRS 1915+105 in Its ρ State
• Detection of QPO Soft Lag during Outburst of Swift J1727.8-1613: Estimation of Instrinsic Parameters from Spectral Study
• The cross-correlation analysis in Z source GX 349+2
• Probing black-hole accretion through time variability
• Evolution of QPOs in GX 339-4 and EXO 1846-031 with Insight-HXMT and NICER
• The accretion rate independence of horizontal branch oscillation in XTE J1701-462
• Spectro-temporal Investigation of Quasi-periodic Oscillations From Black Hole X-ray Binary 4U 1630-472 Using $\text{NICER}$
• Black-hole X-ray binary Swift J1727.8$-$1613 shows simultaneous Type-B and Type-C quasi-periodic oscillations across the hard-intermediate and soft-intermediate states
• The 2009 outburst from the new X-ray transient and black-hole candidate XTE J1652$-$453
• The mHz quasi-regular modulations of 4U 1630--47 during its 1998 outburst
• Radiative feedbacks as drivers for quasi-periodic-oscillation activity in black-hole X-ray binaries
• Search for the Highest-energy Quasiperiodic Oscillation in the Black Hole X-Ray Binary Candidate Swift J1727.8-1613
• Investigating the connection between Quasi Periodic Oscillations and spectral components with NuSTAR data of GRS 1915+105