Suzaku Observation : 804084010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '804084010'          / Observation identification string
OBSERVER= 'ERIC D. MILLER'     / Principal Investigator
OBJECT  = 'A1795_FAR_WEST'     / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             206.8287 / planned target R.A.(deg)
DEC_OBJ =              26.7059 / planned target DEC.(deg)
RA_NOM  = 2.068240000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 2.669500000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             300.5663 / nominal position angle from north to DETY(deg)
MEAN_EA1=     206.824001156672 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      63.304958399734 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     149.433748544769 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2009-06-26T14:01:03' / Start date of observations
DATE-END= '2009-06-27T11:07:19' / End date of observations
TSTART  = 2.993414890000000E+08 / time start
TSTOP   = 2.994160255546207E+08 / time stop
TELAPSE = 7.453655462074280E+04 / elapsed time
ONTIME  = 3.548421234661341E+04 / On-source time
EXPOSURE= 3.548421234661341E+04 / Exposure time
MJD-OBS = 5.500860131000000E+04 / MJD of data start time
FILIN001= 'ae804084010xi0_0_3x3n066a_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= 'ae804084010xi0_0_5x5n066a_cl.evt.gz' / Input file name
FILIN003= 'ae804084010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae804084010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae804084010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae804084010xi3_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:

The outer regions of clusters beyond 0.5 r200 contain a large amount of the dark matter, baryons and metals in the system, yet they are poorly understood. We propose to conduct a new test of cluster and structure formation by probing the distribution of dark matter and the thermodynamic history of the ICM in the outskirts of the cluster Abell 1795. Our previous Suzaku observations of Abell 1795 indicate deviations from hydrostatic equilibrium; we sample two disjoint regions beyond r500, detecting cluster emission in one but not the other (a difference of 5-sigma). With the proposed observations spanning r500-r200, we will obtain a more sensitive measurement of the azimuthally averaged temperature and density at this radius and search for variations over a wider range of azimuth.