$\text{Insights}$ into the phase-dependent cyclotron line feature in XTE J1946+274: An $\text{AstroSat}$ and $\text{Insight}$-HXMT view

Ashwin Devaraj, Rahul Sharma, Shwetha Nagesh +1

XTE J1946+274 is a Be/X-ray binary with a 15.8s spin period and 172 d orbital period. Using $\text{RXTE/PCA}$ data of the 1998 outburst, a cyclotron line around 37 keV was report…