197 citations · 960 across the 28 of their papers we have counts for
23 papers · 1 filter
AstroSat timing and spectral analysis of the accretion-powered millisecond X-ray pulsar IGR J17591--2342
Akshay Singh, Andrea Sanna, Sudip Bhattacharyya +5
IGR J17591--2342, a transient accretion-powered millisecond X-ray pulsar, was discovered during its 2018 outburst. Here, we present a timing and spectral analysis of the source usi…
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 view of bright atoll source GX 9+9 using IXPE and AstroSat
Rwitika Chatterjee, Vivek K. Agrawal, Kiran M. Jayasurya +1
We have carried out the first spectro-polarimetric study of the bright NS-LMXB GX 9+9 using IXPE and AstroSat observations. We report a significant detection of polarization of $1.…
Broadband X-ray properties of black holes GRS 1758-258 and 1E 1740.7-2942: AstroSat and NuSTAR results
Bhuvana G. R., Aneesha U., Radhika D. +4
We present the results on broadband X-ray properties of persistent black hole binaries GRS 1758258 and 1E 1740.72942 using AstroSat, NuSTAR and Swift-XRT observations carried…
AstroSat view of `Clocked` burster GS 1826-238:broad-band spectral nature of persistent and burst emission during soft state
Vivek Kumar Agrawal, Anuj Nandi, Tilak Katoch
In this paper, we have carried out a detailed study of the `Clocked' burster GS using 90 ks broad-band (0.7 - 60.0 keV) data obtained with {\it AstroSat} observat…