activity
20232026
most citedIXPE and NICER view of Black hole X-ray binary 4U 1630-47: First significant detection of polarized emission in thermal state

29 citations · 71 across the 11 of their papers we have counts for

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astro-ph.HE2026

Exploring the multi-wavelength properties of the high energetic event ZTF20abbiixp/GRB 200524A: from prompt emission to afterglow

A. Ghosh, Dimple, K. Misra +32

We conducted a comprehensive multi-wavelength analysis of a high energetic long-duration ZTF20abbiixp / GRB~200524A detected by \textit{Fermi} Gamma Ray Burst Monitor (GBM). Our st…

astro-ph.HE2026

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…

astro-ph.HE2026

Discovery of a Candidate 2 keV Cyclotron Resonance Scattering Feature in the HLX NGC 3583 X-1

Kiran M. Jayasurya, Aman Upadhyay, Vikram Rana

We present a broadband X-ray study of the transient hyperluminous X-ray source (HLX), 2SXPS J111416.1+481833, in the galaxy NGC 3583, using archival XMM-Newton, NuSTAR, Chandra dat…

astro-ph.HE2026

Photometric and late-time spectropolarimetric observations of GRB 250129A afterglow

A. Ghosh, S. Razzaque, J. Barnard +15

Gamma-Ray Burst (GRB) afterglows arise from the interaction of relativistic ejecta with the circumburst medium and are observed across the electromagnetic spectrum. Afterglow polar…

astro-ph.HE2025

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…

astro-ph.HE2024

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…

astro-ph.HE2023

Spectro-polarimetry of 4U 1957+115 with IXPE: Effects of spin and returning radiation on polarised emission of black hole in thermal state

Ankur Kushwaha, Kiran M. Jayasurya, Anuj Nandi

We present a comprehensive spectro-polarimetric study of persistent Black hole X-ray binary 4U with {\it IXPE} and {\it NICER} observations. The source is observed i…

astro-ph.HE2023★ 29 cited

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…

astro-ph.HE2023★ 21 cited

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.…

astro-ph.HE2023★ 16 cited

Detection of significant X-ray polarization from transient NS-LMXB XTE J1701-462 with IXPE and its implication on the coronal geometry

Kiran M. Jayasurya, Vivek K. Agrawal, Rwitika Chatterjee

In this paper, we performed a spectro-polarimetric analysis of the transient NS-LMXB XTE J1701-462 using IXPE, NICER, and NuSTAR data during its 2022 outburst. We report the signif…