7 citations · 17 across the 9 of their papers we have counts for
9 papers · 1 filter
Accretion geometry and spectral evolution in 1A 1118-61: a comparison of the 2009 and 2026 outbursts
Kinjal Roy, Aru Beri, Rahul Sharma +1
We present a detailed spectro-temporal study of the Be X-ray binary pulsar during its brightest recorded outburst in 2026, using \textit{Swift} and \textit{NuSTAR} o…
XMM-Newton view of pulsating iron fluorescent emission from Centaurus X3
Kinjal Roy, Hemanth Manikantan, Biswajit Paul
Cen X-3 is a bright, high-mass X-ray binary pulsar. We present a pulse phase-resolved X-ray spectral analysis of data from an archival XMM-Newton observation of Cen X-3 taken durin…
Unveiling the intensity-dependent wake structure of Vela X-1 using MAXI/GSC
Abhisek Tamang, Kinjal Roy, Hemanth Manikantan +2
Context. Vela X-1 is among the earliest discovered high-mass X-ray binary (HMXB) pulsars. In such systems, the companion's stellar wind is strongly affected by ionisation from X-ra…
Studying the X-ray absorption characteristics of Centaurus X-3 using nearly 14 years of MAXI/GSC data
Ajith Balu, Kinjal Roy, Hemanth Manikantan +2
Centaurus X-3 is a persistent high-mass X-ray binary with the long-term light curve from the source exhibiting orbit-to-orbit intensity variations with no apparent superorbital per…
Luminosity dependence of the multiple cyclotron lines in 4U 011563
Kinjal Roy, Hemanth Manikantan, Biswajit Paul
The Be X-ray binary 4U 011563 underwent a giant outburst in 2023 with the X-ray luminosity of the source reaching 10 erg s. During the outburst, two target of oppo…
Detection of a cyclotron line in the Be X-ray pulsar IGR J060742205
Kinjal Roy, Rahul Sharma, Hemanth Manikantan +1
IGR J0607.4+2205 is a transient Be X-ray binary discovered two decades ago. IGR J0607.4+2205 underwent an outburst in 2023 during which it was observed twice with \textit{NuSTAR}.…
Studying the variability of fluorescence emission and the presence of clumpy wind in HMXB GX 3012 using XMM-Newton
Kinjal Roy, Hemanth Manikantan, Biswajit Paul
We present the results from an analysis of data from an \textit{XMM-Newton} observation of the accreting high mass X-ray binary pulsar GX 3012. Spectral analysis in the non-flar…
Changes in the distribution of circum-binary material around the HMXB GX 301-2 during a rapid spin-up episode of the neutron star
Hemanth Manikantan, Biswajit Paul, Kinjal Roy +1
Some accretion powered X-ray pulsars with supergiant companion stars undergo occasional rapid spin-up episodes that last for weeks to a few months. We explore the changes in the ac…
Science with the Daksha High Energy Transients Mission
Varun Bhalerao, Disha Sawant, Archana Pai +72
We present the science case for the proposed Daksha high energy transients mission. Daksha will comprise of two satellites covering the entire sky from 1~keV to ~MeV. The prima…