Suzaku Observation : 807024010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '807024010'          / Observation identification string
OBSERVER= 'MADOKA KAWAHARADA'  / Principal Investigator
OBJECT  = 'A2256N  '           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             256.1155 / planned target R.A.(deg)
DEC_OBJ =              79.0057 / planned target DEC.(deg)
RA_NOM  = 2.561941000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 7.899610000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             219.8042 / nominal position angle from north to DETY(deg)
MEAN_EA1=     256.194066926262 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      11.003889464336 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     230.195816098799 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2012-11-03T20:51:27' / Start date of observations
DATE-END= '2012-11-05T04:30:18' / End date of observations
TSTART  = 4.052927079031298E+08 / time start
TSTOP   = 4.054042278876612E+08 / time stop
TELAPSE = 1.115199845313430E+05 / elapsed time
ONTIME  = 6.228546112501621E+04 / On-source time
EXPOSURE= 6.228546112501621E+04 / Exposure time
MJD-OBS = 5.623488856582326E+04 / MJD of data start time
FILIN001= 'ae807024010xi0_0_3x3n066l_cl.evt.gz' / Input file name
SEQPNUM =                    2 / Number of times this dataset processed
PROCVER = '3.0.22.44'          / Processing script version
MK1STVER= 'mk1stfits20120530'  / Version of mk1stfits used
SOFTVER = 'Hea_08Feb2016_V6.18_Suzaku_14Nov2013_V22' / Version of HEADAS used
CALDBVER= 'hxd20110913_xis20160607_xrt20110630_xrs20060410' / Version of CALDB u
FILIN002= 'ae807024010xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN003= 'ae807024010xi3_0_3x3n066a_cl.evt.gz' / Input file name
COMMENT -------------------------
COMMENT BITPIX compressed from 32 to 8.
COMMENT Pixel values greater than 255 was set to 255.
COMMENT This file was made for JUDO-Suzaku.
COMMENT -------------------------
COMMENT   FITS (Flexible Image Transport System) format is defined in 'Astronomy

Abstract:

We observe outskirts of the famous merging cluster of galaxies A2256 with 4 pointings (60ks for each), and obtain spatial distributions of temperature, electron density, pressure and entropy. In a recent study, the thermal profiles after a merger are thought to be similar to those at cluster formation age. By comparing the spatial distributions of A2256 with those of nearby relaxed clusters, we observationally study the evolution of thermal spatial properties of the ICM in the course of cluster evolution.