Suzaku Observation : 709003010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '709003010'          / Observation identification string
OBSERVER= 'YOSHIHIRO UEDA'     / Principal Investigator
OBJECT  = 'NGC 2655'           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             133.9071 / planned target R.A.(deg)
DEC_OBJ =              78.2231 / planned target DEC.(deg)
RA_NOM  = 1.339038000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 7.820940000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             275.5561 / nominal position angle from north to DETY(deg)
MEAN_EA1=     133.903790801983 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      11.790593765166 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     174.443884638244 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2014-05-12T10:16:35' / Start date of observations
DATE-END= '2014-05-14T01:45:22' / End date of observations
TSTART  = 4.532072570000000E+08 / time start
TSTOP   = 4.533454488493865E+08 / time stop
TELAPSE = 1.381918493864536E+05 / elapsed time
ONTIME  = 7.683714239770174E+04 / On-source time
EXPOSURE= 7.683714239770174E+04 / Exposure time
MJD-OBS = 5.678945510629629E+04 / MJD of data start time
FILIN001= 'ae709003010xi0_0_3x3n066l_cl.evt.gz' / Input file name
SEQPNUM =                    3 / 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= 'ae709003010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae709003010xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN004= 'ae709003010xi1_0_5x5n130b_cl.evt.gz' / Input file name
FILIN005= 'ae709003010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae709003010xi3_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 number of Compton thick AGNs is the biggest issue in the origin of the X-ray background and AGN evolution. According to population synthesis models, its estimate is strongly coupled with the broad band spectral shape of Compton thin AGNs. Swift/BAT has provided the first unbiased AGN sample above 15 keV, which includes many hard X-ray bright AGNs that can be best followed-up with Suzaku. Here we propose to observe two of the lowest luminosity BAT AGNs to measure the amount of the reflection component with unpreceded accuracy, a key parameter to determine the contribution of Compton thick AGNs to the X-ray background. We will also study how the torus structure of low luminosity AGNs differs from that of more luminous AGNs.