5 papers
Complex Energy-Dependent Behaviour of Quasi-Periodic Oscillation Observed in GRS 1915+105
Vaibhav Sharma, Ranjeev Misra, V. Jithesh +5
We present complex energy-resolved properties of quasi-periodic oscillations (QPOs) in the black hole X-ray binary GRS 1915+105 using an observation from the LAXPC instrument onboa…
Correlations Between kHz QPOs and Spectral Parameters from Time-Resolved Spectro-Temporal Analysis of 4U 1728-34
Kewal Anand, Ranjeev Misra, J. S. Yadav +1
We present a time-resolved analysis of the persistent emission in 4U 1728--34 using AstroSat observations from 2016 to 2019. We detect kilohertz quasi-periodic oscillations (kHz QP…
Constraining Spin and Inclination Angle of XTE J2012+381 using AstroSat and NICER
Vaibhav Sharma, Ranjeev Misra, Shivani Chaudhary +2
We present a spectral analysis of a black hole X-ray binary XTE J2012+381 during its 2022 outburst, using data from NICER and AstroSat. Combining data from NICER, LAXPC20, and SXT,…
Evolution of the 2021 Outburst of GX 339-4 with AstroSat
Vaibhav Sharma, Ranjeev Misra, J S Yadav +2
We present a comprehensive study of the 2021 outburst of GX 339-4 using AstroSat observations in the hard-intermediate (HIMS) and soft-intermediate states (SIMS). Spectral and timi…
Discovery of a new flaring class in GRS 1915+105 using AstroSat
Ruchika Dhaka, JS Yadav, Ranjeev Misra +1
Highly variable Black Hole X-ray Binary (BHXB) GRS~1915+105 has shown many flaring classes when the source oscillates between the High Soft state (HS) and the Hard Intermediate sta…