Suzaku Observation : 800017010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '800017010'          / Observation identification string
OBSERVER= 'Suzaku SWG'         / Principal Investigator
OBJECT  = 'NGC4388 '           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             186.4454 / planned target R.A.(deg)
DEC_OBJ =              12.6620 / planned target DEC.(deg)
RA_NOM  = 1.864461000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 1.266740000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             119.6220 / nominal position angle from north to DETY(deg)
MEAN_EA1=     186.446050945154 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      77.332602951730 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     330.378006587124 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2005-12-24T09:04:19' / Start date of observations
DATE-END= '2005-12-27T06:00:14' / End date of observations
TSTART  = 1.887305220000000E+08 / time start
TSTOP   = 1.889783978162625E+08 / time stop
TELAPSE = 2.478758162625134E+05 / elapsed time
ONTIME  = 1.258462220264673E+05 / On-source time
EXPOSURE= 1.258462220264673E+05 / Exposure time
MJD-OBS = 5.372838178453704E+04 / MJD of data start time
FILIN001= 'ae800017010xi0_0_3x3n000a_cl.evt.gz' / Input file name
SEQPNUM =                    3 / 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= 'ae800017010xi0_0_5x5n000a_cl.evt.gz' / Input file name
FILIN003= 'ae800017010xi1_0_3x3n001b_cl.evt.gz' / Input file name
FILIN004= 'ae800017010xi1_0_5x5n001b_cl.evt.gz' / Input file name
FILIN005= 'ae800017010xi2_0_3x3n000a_cl.evt.gz' / Input file name
FILIN006= 'ae800017010xi2_0_5x5n000a_cl.evt.gz' / Input file name
FILIN007= 'ae800017010xi3_0_3x3n000a_cl.evt.gz' / Input file name
FILIN008= 'ae800017010xi3_0_5x5n000a_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:

Large-scale X-ray nebulae up to a few tens of kpc have been often found in starburst galaxies, which is thermally heated up by the superwind from the starburst nucleus. Iwasawa et al. (2003) found a large X-ray nebula up to 16kpc around NGC4388, which is photoiionized by Seyfert nucleus. Thus, this result suggests that the hard X-ray emission from active galactic nucleus could be a prime heat source of nebula. The goals of this observation are (1) to see how far the X-ray nebula is extended, (2) to obtain its precise X-ray spectrum, (3) to determine what is the X-ray emission mechanism, and (4) to exam if the photoionization by AGN could be a prime heat source of the galactic halo. We determine the photon index and the high energy cut-off of the power-law component from the HXD spectrum.