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astro-ph.HE2025
Variability study of classical supergiant X-ray binary 4U 1907+09 using NuSTAR
Raj Kumar, Sayantan Bhattacharya, Sudip Bhattacharyya +1
We investigate the X-ray variability of the supergiant X-ray binary 4U 1907+09 using the new NuSTAR observation of 2024. The source had a relatively stable flux level during previo…
astro-ph.HE2025
Spectro-Polarimetric Study of Weakly Magnetized Neutron Star X-ray binary GX 349+2
Raj Kumar, Subhasish Das
We report the first spectro-polarimetric investigation of the bright Z-type source GX 349+2 using simultaneous observations of \textit{IXPE}, \textit{NuSTAR} and \textit{Swift/XRT}…
astro-ph.HE2024
Very High-energy Gamma-Ray Episodic Activity of Radio Galaxy NGC 1275 in 2022-2023 Measured with MACE
S. Godambe, N. Mankuzhiyil, C. Borwankar +37
The radio galaxy NGC 1275, located at the central region of Perseus cluster, is a well-known very high-energy (VHE) gamma-ray emitter. The Major Atmospheric Cherenkov Experiment Te…