Suzaku Observation : 805084010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '805084010'          / Observation identification string
OBSERVER= 'MATTHEW R GEORGE'   / Principal Investigator
OBJECT  = 'PKS 0745-191'       / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             116.7016 / planned target R.A.(deg)
DEC_OBJ =             -18.9033 / planned target DEC.(deg)
RA_NOM  = 1.167033000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -1.890480000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             294.0011 / nominal position angle from north to DETY(deg)
MEAN_EA1=     116.703341800050 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     108.904779102490 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     155.998863726042 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2010-04-29T20:46:16' / Start date of observations
DATE-END= '2010-04-30T15:24:16' / End date of observations
TSTART  = 3.258906590000000E+08 / time start
TSTOP   = 3.259549720000000E+08 / time stop
TELAPSE = 6.431300000000000E+04 / elapsed time
ONTIME  = 3.483557892197371E+04 / On-source time
EXPOSURE= 3.483557892197371E+04 / Exposure time
MJD-OBS = 5.531588337018518E+04 / MJD of data start time
FILIN001= 'ae805084010xi0_0_3x3n066l_cl.evt.gz' / Input file name
SEQPNUM =                    2 / Number of times this dataset processed
PROCVER = '3.0.22.43'          / Processing script version
MK1STVER= 'mk1stfits20120530'  / Version of mk1stfits used
SOFTVER = 'Hea_08Feb2016_V6.18_Suzaku_14Nov2013_V22' / Version of HEADAS used
CALDBVER= 'hxd20110913_xis20151005_xrt20110630_xrs20060410' / Version of CALDB u
FILIN002= 'ae805084010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae805084010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae805084010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae805084010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae805084010xi3_0_5x5n066a_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:

Suzaku has enabled us to make the first measurement of the temperature profile beyond the virial radius of any cluster. The gas in the outskirts of galaxy clusters presents information of astrophysical and cosmological importance. Measurements at the virial radius, where the dominant gas behavior switches from infall to equilibrium, can improve cluster mass estimates. Temperature and entropy profiles in the outskirts describe the accretion history and energy balance of clusters, near where they must match the background properties of the Universe. But these observations are just beginning. How do clusters grow? Are there large scale accretion shocks? To what extent are clusters relaxed? Here we propose to continue our study of PKS 0745-191 using Suzaku's unique capability to map this area.