XRISM XTEND observation 201100010

Title

DECIPHERING THE DYNAMICS AND CHEMICAL ENRICHMENT OF THE TRIPLE-MERGING SYSTEM ABELL 85

Abstract

Galaxy clusters are known to grow and assemble via gas accretion and mergers. Somewhere in-between is the case of minor mergers, resulting in dynamical processes such as cold fronts, sloshing, and ram-pressure stripping, all susceptible to impact turbulence and gas (thermo-) dynamics, hence the entire evolution of large scale structures in our Universe. We propose a deep XRISM observation of the triple-merging system Abell 85, with Resolve pointings at the cluster (cool) core and in the two merging sub clusters. This study will be essential to map gas dynamics in this complex system (also with regard to its dark matter distribution), but also to understand the impact of minor mergers on the turbulent support in relaxed clusters.

FITS header

TELESCOP= 'XRISM   '           / Mission name
INSTRUME= 'XTEND   '           / Instrument name
OBS_ID  = '201100010'          / Observation identification string
OBJECT  = 'ABELL85_SW'         / Object name
OBSERVER= 'FRANCOIS MERNIER'   / PI name
OBS_MODE= 'POINTING'           / POINTING or SLEW or ALL
RA_OBJ  =              10.3979 / [deg] Object Right ascension
DEC_OBJ =              -9.3667 / [deg] Object Declination
RA_PNT  =     10.3961733968266 / Pointing RA
DEC_PNT =    -9.36885745814413 / Pointing DEC
RA_NOM  =     10.3973884417653 / [deg] Nominal aspect point R.A.
DEC_NOM =    -9.36658432245783 / [deg] Nominal aspect point Dec.
PA_NOM  =     78.0012845754773 / [deg] Nominal aspect point roll.
TELAPSE =               409900 / Elapsed time
DATE-OBS= '2025-06-04T17:34:46' / Start date
DATE-END= '2025-06-09T11:26:26' / Stop date
ONTIME  =         225849.34111 / On-source time
EXPOSURE=         225849.34111 / 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    = '2025-07-14T10:05:01' / Date and time this file was created or updated
SIB2_VER= 'V03.01  '           / SIB2 version JAXA

Links

• For Quick look
  • IMAGE PNG
  • IMAGE FITS
  • EVENT FITS
• MASTER DATA - for master database
• XTEND DATA - for XTEND database
• UDON3 - to quickly extract spectrum and light-curve
• JUDO2 - to compare with XMM, MAXI, ASCA and other data