THE SLOSHING CORE OF ABELL 496
The bright, nearby, and hot cluster Abell 496 is a unique system. Strong gas sloshing features have been observed. Simulations of the system predict that a previous north-south minor merger induced these. eROSITA detects an emission enhancement in the north-north-west direction and XRISM is ideally suited to measure corresponding gas velocities for the first time. Combining these two datasets, we will test the merger scenario and, if confirmed, constrain its parameters.
TELESCOP= 'XRISM ' / Mission name INSTRUME= 'XTEND ' / Instrument name OBS_ID = '201122010' / Observation identification string OBJECT = 'ABELL496_CENTER' / Object name OBSERVER= 'THOMAS REIPRICH' / PI name OBS_MODE= 'POINTING' / POINTING or SLEW or ALL RA_OBJ = 68.4085 / [deg] Object Right ascension DEC_OBJ = -13.2616 / [deg] Object Declination RA_PNT = 68.4107394449277 / Pointing RA DEC_PNT = -13.2598815287814 / Pointing DEC RA_NOM = 68.4087752472709 / [deg] Nominal aspect point R.A. DEC_NOM = -13.2615988789743 / [deg] Nominal aspect point Dec. PA_NOM = 278.261998457294 / [deg] Nominal aspect point roll. TELAPSE = 43387 / Elapsed time DATE-OBS= '2025-03-24T16:34:56' / Start date DATE-END= '2025-03-25T04:38:03' / Stop date ONTIME = 24950.867313 / On-source time EXPOSURE= 24950.867313 / Exposure time PROCVER = '03.00.013.010' / Processing script version MKFFF = 'ISAS/JAXA' / Origin of First FITS file ORIGIN = 'GSFC/NASA' / Origin of Processed FITS file SOFTVER = 'Hea_21Aug2024_V6.34_XRISM_21Aug2024_V001' / Version of HEADAS used CALDBVER= 'gen20241115_xtd20241115_rsl20241115' / Version of CALDB used DATE = '2025-04-10T11:38:30' / Date and time this file was created or updated SIB2_VER= 'V03.01 ' / SIB2 version JAXA