Suzaku Observation : 705039010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '705039010'          / Observation identification string
OBSERVER= 'DANIEL A EVANS'     / Principal Investigator
OBJECT  = 'NGC 6251'           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             248.1328 / planned target R.A.(deg)
DEC_OBJ =              82.5378 / planned target DEC.(deg)
RA_NOM  = 2.482903000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 8.253910000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             182.5432 / nominal position angle from north to DETY(deg)
MEAN_EA1=     248.290257288411 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=       7.460941508392 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     267.456823702594 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2010-12-02T05:44:15' / Start date of observations
DATE-END= '2010-12-04T00:49:14' / End date of observations
TSTART  = 3.445844528092699E+08 / time start
TSTOP   = 3.447364310000000E+08 / time stop
TELAPSE = 1.519781907300949E+05 / elapsed time
ONTIME  = 8.707056242448092E+04 / On-source time
EXPOSURE= 8.707056242448092E+04 / Exposure time
MJD-OBS = 5.553224672445914E+04 / MJD of data start time
FILIN001= 'ae705039010xi0_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= 'ae705039010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae705039010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae705039010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae705039010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae705039010xi3_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:

We propose an 85-ks Suzaku observation of NGC 6251, the brightest example of a low-excitation radio galaxy (LERG). We have previously suggested that LERGs violate conventional AGN unification schemes: they may lack an obscuring torus and are likely to accrete in a radiatively inefficient manner, with almost all of the energy released by the accretion process being channeled into powerful jets. However, Suzaku observations at low and high energies are needed to test this model directly. We will use the XIS and HXD to search for the signatures of accretion-related X-ray emission: (1) the 6.4 keV Fe Ka line, (2) heavily absorbed X-ray emission, and (3) the >10 keV Compton reflection bump. These results will have important implications for models of accretion and feedback in radio-loud AGN.