10 papers
Importance and Science Outcomes from the first XSPECT/XPoSat Workshop
Anuj Nandi, Rwitika Chatterjee, V. P. Shyam Prakash +49
This paper summarizes the science outcomes of the first Workshop on Data Analysis using observations from the XSPECT payload onboard the XPoSat, which brought together early-career…
Multimission Observations of GS 1354-64 during the 2025-2026 Outburst: First Results
Dipak Debnath, Hsiang-Kuang Chang, Subham Srimani +1
The Galactic transient black hole GS 1354-64 recently showed a new outburst, which has been continuously monitored by {\it MAXI}, {\it NuSTAR} and {\it Insight-HXMT} missions. The…
Time-Lag properties associated with LFQPO in X-ray variability classes of GRS 1915+105: Findings from AstroSat
Prajjwal Majumder, Broja G. Dutta, Anuj Nandi
We present a comprehensive analysis of Low Frequency Quasi-periodic Oscillation (LFQPO) associated time-lags in the persistently variable black hole binary GRS 1915+105 using 441 k…
Probing the accretion geometry of black hole X-ray binaries: A multi-mission spectro-polarimetric and timing study
Seshadri Majumder, Ankur Kushwaha, Swapnil Singh +3
We present a comprehensive spectro-polarimetric and timing analysis of twelve black hole X-ray binaries, namely Cyg X-1, 4U 1630-47, Cyg X-3, LMC X-1, 4U 1957+115, LMC X-3, Swift J…
Possible detection of HFQPOs associated with 'unknown' variability class of GRS 1915+105
Seshadri Majumder, Santabrata Das, Anuj Nandi
We present a comprehensive spectro-temporal analysis of GRS observed with AstroSat during June, . A detailed study of the temporal properties reveals the appearanc…
Revisiting Disc-Jet Coupling in Black Hole X-ray Binaries: On the Nature of Disc Dynamics and Jet Velocity
Sreetama Das Choudhury, Bhuvana G. R., Santabrata Das +1
We perform a comprehensive wide-band (keV) spectro-temporal analysis of 13 outbursting BH-XRBs, using data (quasi)simultaneous with radio observations to unravel the complex…