Fe K line in Seyfert nucleus : NGC 5033 with Chandra X-ray spectra

Karthik Balasubramaniam^1*

¹Astronomy, National Tsing Hua University, Hsinchu, Taiwan
²Astronomy, Astronomical Observatory of the Jagiellonian University, Krakow, Poland

* Presenter:Karthik Balasubramaniam, email:kab241291@gapp.nthu.edu.tw

We report imaging and spectroscopic analysis of the Seyfert 1.8 galaxy NGC 5033 obtained from combined Chandra ACIS-S observations.
The spiral galaxy NGC 5033 has an extended central X-ray source and a Seyfert 1.8 type nucleus that can be detected at high inclination. The
galaxy is roughly 14.7 Mpc away from Earth. Using spatially resolved spectroscopy, we visualized the tens of parsecs
of the source's circumnuclear environment, which is substantially absorbed. With regard to the X-ray source, detailed investigation
allowed us to identify the Fe K alpha emission line at 6.4 keV, which may originate from reprocessed material. The unresolved core emission is
found to vary when measurements made over a period of years are taken into account.

Keywords: X-ray active galactic nuclei, Fe K line, Chandra Observatory, circumnuclear envirnoment, Seyfert galaxy