Circinus_Galaxy
We propose to observe the Circinus galaxy with XRISM, the most nearby (4.2 Mpc) Compton-thick AGN showing the brightest narrow Fe-Ka line among all known AGNs. The bright fluorescence lines and Compton-thick nature make it the best target for studying the torus itself through high resolution spectroscopy. We use the Compton shoulder structure of Fe-Ka and the properties of other fluorescence lines to unveil the torus structure. The Resolve spectrum will also reveal the origins and kinematics of the extended soft X-ray emission.
obsid = 000162000 / Unique Observation/Sequence Number
object = Circinus_Galaxy / Object name
pi_name = Collaboration XRISM / Proposal Principal Investigator Name
ra = 213.290109171456 / Right Ascension (Pointing Position) (deg)
dec = -65.3392728915775 / Declination (Pointing Position) (deg)
roll_angle = 114.477341559988 / Roll Angle (deg)
start_time = 2024-02-08T11:18:04 / Start Time of the Observation
stop_time = 2024-02-12T23:56:04 / Stop Time of the Observation
exposure = 328030.1406197 / Effective Total Observation Exposure (s)
public_date= 2025-08-31 / Public Date