3 papers
astro-ph.HE2026
Cyclotron Line Variability and Accretion Dynamics in Vela X-1
Mohammed Tobrej, Binay Rai, Manoj Ghising +1
We present a comprehensive analysis of Vela X-1 using two new NuSTAR observations, placed in the context of four earlier datasets obtained between 2012 and 2020. The energy-resolve…
astro-ph.HE2025
Spectral-Timing Evolution of a Black hole X-ray binary Swift J1727.8-1613: Linking Disk Reflection and Type-C QPO Frequency During the 2023 Outburst
Manoj Ghising, Nirpat Subba, Mohammed Tobrej +2
We present a comprehensive spectral-timing analysis of a BHXB Swift J1727.81613 during its 2023 outburst, using five pointed \textit{NuSTAR} observations sampling the luminous h…
astro-ph.HE2025
Spectro-timing analysis of Be X-ray pulsar SMC X-2 during the 2022 outburst
Mohammed Tobrej, Binay Rai, Manoj Ghising +2
We present broadband X-ray observations of the High Mass X-ray Binary (HMXB) pulsar SMC X-2, using concurrent NuSTAR and NICER observations during its 2022 outburst. The source is…