105 citations
- A. Nandi21 · h 22
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- Tata Institute of Fundamental ResearchIN17 papers
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8 papers · 1 filter
Turbulence dynamics and flow speeds in the inner solar corona: Results from radio-sounding experiments by the Akatsuki spacecraft
Richa N. Jain, R. K. Choudhary, Anil Bhardwaj +3
The solar inner corona is a region that plays a critical role in energizing the solar wind and propelling it to supersonic and supra-Alfvenic velocities. Despite its importance, th…
Multiwavelength study of radio galaxy Pictor A: detection of western hotspot in far-UV and possible origin of high energy emissions
Sanna Gulati, Debbijoy Bhattacharya, M. C. Ramadevi +2
A comprehensive study of the nucleus and western hotspot of Pictor A is carried out using AstroSat observations, 13 years of Fermi, and archival Swift observations, along with othe…
Tunneling from general Smith-Volterra-Cantor potential
Vibhav Narayan Singh, Mohammad Umar, Mohammad Hasan +1
We study the tunneling problem from general Smith-Volterra-Cantor (SVC) potential of finite length characterized by the scaling parameter and stage . We show that the SV…
IXPE and NICER view of Black hole X-ray binary 4U 1630-47: First significant detection of polarized emission in thermal state
Ankur Kushwaha, Kiran M. Jayasurya, Vivek K. Agrawal +1
We present a detailed spectro-polarimetric study of Black hole X-ray binary 4U during its outburst with IXPE and NICER observations. The source is observed in disk…
Coronal Elemental Abundances during A-class Solar Flares Observed by Chandrayaan-2 XSM
Lakshitha Nama, Biswajit Mondal, S Narendranath +1
The abundances of low First Ionisation Potential (FIP) elements are three to four times higher (FIP bias) in the closed loop active corona than in the photosphere, known as the FIP…
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.…