2 citations · 2 across the 10 of their papers we have counts for
11 papers
Long-term X-ray spectral analysis of Cygnus X-1 using AstroSat
H Lalthantluanga, Akash Garg, Ranjeev Misra +2
We performed a spectral analysis of long-term observations (2016-2019) of the black hole binary Cygnus X-1 using AstroSat, covering its hard, intermediate, and soft states. During…
Spectral evolution of NS binary system GX 349+2 using AstroSat observations
Garima Tyagi, Suchismito Chattopadhyay, Sree Bhattacherjee +3
We present a broadband spectral study of the Sco-like Z source GX 349+2 using AstroSat LAXPC and SXT observations obtained during 2019 and 2024. The X-ray light curves exhibit larg…
Potential detection of ~ 4.2 keV emission line from GRS 1747-312
Amom Lanchenbi Chanu, Akash Garg, Ranjeev Misra +1
We present a broadband spectral analysis of the neutron star LMXB GRS 1747-312 using 40 ks AstroSat data. The source was observed during the decay phase of the 2017 outburst…
Neuro-Parametric Spectral Classification of Black Hole and Neutron Star X-ray Binary Systems
Akash Garg, Aman Kumar, Ajit Kembhavi +5
We perform the classification of black hole and neutron star X-ray binary systems using deep neural networks applied to archival RXTE X-ray spectral data. We first construct two ne…
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…
Probing the energy-dependent temporal nature of MAXI J1803-298 with AstroSat and NICER
Arbind Pradhan, Akash Garg, Ranjeev Misra +1
We performed the spectral and temporal analysis of MAXI J1803-298 using AstroSat/LAXPC and NICER observations taken in May 2021 during the initial phase of the outburst. We found t…
Quasi-Periodic Oscillations due to radiative feedback mechanism between the disc and corona
Akash Garg, Ranjeev Misra, Somasri Sen
Compact object systems exhibit Quasi-Periodic Oscillations (QPOs) as revealed by peaked features in their power density spectra. It has been known that stochastic variations in the…
Contemporaneous X-ray and Optical Polarization of EHSP Blazar H 1426+428
Anuvab Banerjee, Akash Garg, Divya Rawat +17
We present the first contemporaneous X-ray and optical polarimetric measurement of the extremely high synchrotron peaked (EHSP) blazar H 1426+428. The X-ray polarimetric observatio…
Spectro-temporal evolution of 4U 1702-429 using AstroSat-NICER
Suchismito Chattopadhyay, Ranjeev Misra, Soma Mandal +2
We present the broadband spectral and timing properties of the atoll source 4U 1702-429 using two observations of AstroSat with the second one having simultaneous NICER data. For b…
Modelling the Energy-dependent broadband variability in the black-hole transient GX 339-4 using Astrosat and NICER
Hitesh Tanenia, Akash Garg, Ranjeev Misra +1
We present a spectro-timing analysis of the black hole X-ray transient GX 339-4 using simultaneous observations from Astrosat and NICER during the 2021 outburst period. The combine…
Unveiling the X-ray polarimetric properties of LMC X-3 with IXPE, NICER, and Swift/XRT
Akash Garg, Divya Rawat, Mariano Méndez
The incoming Imaging X-ray Polarimetry Explorer (IXPE) observations of X-ray binaries provide a new tool to investigate the underlying accretion geometry. Here we report the first…