2 papers
astro-ph.HE2025
Discovery of a new phase-transient cyclotron line in A0535+26: Constraints on the accretion geometry
Ashwin Devaraj, Biswajit Paul, Varun Bhalerao +1
In November 2020, A0535+26 underwent one of its brightest outbursts, reaching nearly 12 Crab in X-ray flux. Observed by \textit{Insight-HXMT}, \textit{NuSTAR}, \textit{NICER}, and…
astro-ph.HE2024
Probing the energy and luminosity-dependent spectro-timing properties of RX J0440.9+4431 with AstroSat
Rahul Sharma, Manoj Mandal, Sabyasachi Pal +3
The Be/X-ray binary pulsar RX J0440.9+4431 went through a giant outburst in December 2022 with a peak flux of 2.3 Crab in 15--50 keV. We studied the broad-band timing and spe…