XRISM RESOLVE observation 201031010

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Title

UNVEILING THE COMPLEX DYNAMICS OF THE INTRACLUSTER MEDIUM IN THE CENTAURUS CLUSTER WITH XRISM

Abstract

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.

FITS header

TELESCOP= 'XRISM   '           / Mission name
INSTRUME= 'RESOLVE '           / Instrument name
FILTER  = 'FE55    '           / Filter name used
OBS_ID  = '201031010'          / Observation identification string
OBJECT  = 'CENTAURUS_W'        / Object name
OBSERVER= 'KOSUKE SATO'        / PI name
OBS_MODE= 'POINTING'           / POINTING or SLEW or ALL
RA_OBJ  =             192.1482 / [deg] Object Right ascension
DEC_OBJ =             -41.3343 / [deg] Object Declination
RA_PNT  =     192.154219489157 / Pointing RA
DEC_PNT =    -41.3350901521819 / Pointing DEC
RA_NOM  =     192.148860153638 / [deg] Nominal aspect point R.A.
DEC_NOM =    -41.3343739214933 / [deg] Nominal aspect point Dec.
PA_NOM  =     286.671201589449 / [deg] Nominal aspect point roll.
TELAPSE =     400476.348123014 / Elapsed time
DATE-OBS= '2025-06-28T03:07:20.093750' / Start date
DATE-END= '2025-07-02T18:21:56.441873' / Stop date
ONTIME  =         18813.292138 / On-source time
EXPOSURE=         18813.292138 / Exposure time
PROCVER = '03.02.014.010'      / Processing script version
MKFFF   = 'ISAS/JAXA'          / Origin of First FITS file
ORIGIN  = 'GSFC/NASA'          / Origin of Processed FITS file
SOFTVER = 'Hea_12Mar2025_V6.35_XRISM_28Feb2025_V002' / Version of HEADAS used
CALDBVER= 'gen20241115_xtd20241115_rsl20241115' / Version of CALDB used
DATE    = '2025-07-13T05:56:23' / Date and time this file was created or updated
SIB2_VER= 'V04.00  '           / SIB2 version JAXA

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