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Accretion disc dynamics in extragalactic black hole X-ray binaries: A comprehensive study of M33 X-7, NGC 300 X-1 and IC 10 X-1
Bhuvana G. R., Anuj Nandi
Extragalactic Black Hole X-ray Binaries (BH-XRBs) are the most intriguing X-ray sources as some of them are `home' to the most massive stellar-mass BHs ever found. In this work, we…
Long term wide-band spectro-temporal studies of outbursting black hole candidate sources GX 339-4 and H 1743-322: AstroSat and NuSTAR results
U. Aneesha, Santabrata Das, Tilak B. Katoch +1
We present a comprehensive spectro-temporal analyses of recurrent outbursting black hole sources GX 3394 and H 1743322 using available AstroSat and NuSTAR archival observatio…
Discovery of evolving low-frequency QPOs in hard X-rays ( keV) observed in black hole Swift J1727.8-1613 with
Anuj Nandi, Santabrata Das, Seshadri Majumder +3
We report the first detection of evolving Low-Frequency Quasi-periodic Oscillation (LFQPO) frequencies in hard X-rays upto keV with during `unusual' outburst…
Spectro-polarimetric study to constrain accretion-ejection properties of MCG-5-23-16 using IXPE and NuSTAR observations
Santanu Mondal, Rwitika Chatterjee, Vivek K. Agrawal +1
We conducted a study on the X-ray polarization properties of MCG-5-23-16 by analyzing long-term monitoring data from {\it NuSTAR} jointly with {\it IXPE} observations made in May a…
First detection of X-ray polarization in Galactic ULX pulsar Swift J0243.66124 with {\it IXPE}
Seshadri Majumder, Rwitika Chatterjee, Kiran M. Jayasury +2
We report the results of first ever spectro-polarimetric analyses of the Galactic ultra-luminous X-ray pulsar Swift J0243.6 during the 2023 outburst using quasi-simultaneous…