CENTAURUS_W
The Centaurus cluster offers a unique opportunity to study the intricate interplay among the hot intracluster medium (ICM), the central galaxy (NGC 4696), and the central active galactic nucleus (AGN). Our initial analysis of XRISM Performance Verification (PV) data revealed tantalizing signatures of bulk motions and turbulence in the ICM, potentially driven by the central AGN and sloshing of the central galaxy. This proposal aims to expand upon these findings by observing offset regions, enabling a comprehensive study of the velocity structure, turbulence, and metal distribution across the cluster core. Specifically, we propose deep observations of the western (200 ksec: the 1st priority) and eastern (150 ksec: the 2nd priority) off-center regions, encompassing the detected cold fronts.
obsid = 201031010 / Unique Observation/Sequence Number
object = CENTAURUS_W / Object name
pi_name = SATO KOSUKE / Proposal Principal Investigator Name
ra = 192.148860153638 / Right Ascension (Pointing Position) (deg)
dec = -41.3343739214933 / Declination (Pointing Position) (deg)
roll_angle = 286.671201589449 / Roll Angle (deg)
start_time = 2025-06-28T03:00:04 / Start Time of the Observation
stop_time = 2025-07-02T18:23:04 / Stop Time of the Observation
exposure = 296754.18808 / Effective Total Observation Exposure (s)
public_date= 2026-07-17 / Public Date