Suzaku Observation : 502018010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '502018010'          / Observation identification string
OBSERVER= 'RYO YAMAZAKI'       / Principal Investigator
OBJECT  = 'HESS J1745-303 3'   / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             266.0604 / planned target R.A.(deg)
DEC_OBJ =             -30.2424 / planned target DEC.(deg)
RA_NOM  = 2.660567000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -3.024130000000000E+01 / Declination of target (deci. deg)
PA_NOM  =              69.0003 / nominal position angle from north to DETY(deg)
MEAN_EA1=     266.056717785582 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     120.241302699248 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=      20.999676713495 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2008-03-08T16:02:17' / Start date of observations
DATE-END= '2008-03-10T21:00:19' / End date of observations
TSTART  = 2.583073424609694E+08 / time start
TSTOP   = 2.584979900567517E+08 / time stop
TELAPSE = 1.906475957822800E+05 / elapsed time
ONTIME  = 7.904022701516747E+04 / On-source time
EXPOSURE= 7.904022701516747E+04 / Exposure time
MJD-OBS = 5.453366905839085E+04 / MJD of data start time
FILIN001= 'ae502018010xi0_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= 'ae502018010xi0_0_5x5n066a_cl.evt.gz' / Input file name
FILIN003= 'ae502018010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae502018010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae502018010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae502018010xi3_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:

A TeV gamma-ray source HESS J1745-303 shows the hardest TeV spectrum, which cannot be explained by diffusive shock acceleration theory at adiabatic shocks. This source may accelerate protons of 100TeV or more. This TeV source is extended, hence likely a supernova remnant (SNR). There are two scenarios on the nature of this source: one is a young SNR in which the proton acceleration is so efficient, and the other is an old SNR with radiative shock. We have already observed this source by Suzaku AO-1, and found a faint, diffuse, nonthermal X-ray emission. However, the current data prevents us from concluding which scenario is favorable since entire region is not yet covered by X-ray observation. In order to clarify the nature of this source, we propose X-ray mapping observations by Suzaku.