RESOLVING THE ICM VELOCITY STRUCTURE OF ABELL 1795 WITH XRISM
We propose two XRISM Resolve pointings toward the bright cool-core cluster Abell 1795, one centered on the cluster and one offset 3 arcmin (220 kpc) to the north, with a primary goal of measuring the line-of-sight bulk motion and velocity broadening inside the disturbed central region and in a more relaxed region outside the core. These observations will also provide an initial baseline for future long observations to measure turbulence out to larger radius; probe the effects of gas dynamics on the distribution of metals in the ICM; and provide a deep Xtend observation to measure thermodynamic profiles out to R200.
TELESCOP= 'XRISM ' / Mission name INSTRUME= 'RESOLVE ' / Instrument name FILTER = 'FE55 ' / Filter name used OBS_ID = '201088010' / Observation identification string OBJECT = 'ABELL1795_NORTH' / Object name OBSERVER= 'ERIC MILLER' / PI name OBS_MODE= 'POINTING' / POINTING or SLEW or ALL RA_OBJ = 207.2186 / [deg] Object Right ascension DEC_OBJ = 26.6431 / [deg] Object Declination RA_PNT = 207.213496805792 / Pointing RA DEC_PNT = 26.642807017477 / Pointing DEC RA_NOM = 207.218039647335 / [deg] Nominal aspect point R.A. DEC_NOM = 26.643275195017 / [deg] Nominal aspect point Dec. PA_NOM = 90.0011722627646 / [deg] Nominal aspect point roll. TELAPSE = 223651.765625 / Elapsed time DATE-OBS= '2025-01-20T04:42:16.234375' / Start date DATE-END= '2025-01-22T18:49:48' / Stop date ONTIME = 3860.2282519 / On-source time EXPOSURE= 3860.2282519 / 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 = '2025-01-28T06:18:11' / Date and time this file was created or updated SIB2_VER= 'V03.01 ' / SIB2 version JAXA