Suzaku Observation : 501010010

QL FITS Image

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Fits Header
TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '501010010'          / Observation identification string
OBSERVER= 'RYO YAMAZAKI'       / Principal Investigator
OBJECT  = 'HESS J1745-303'     / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             266.2600 / planned target R.A.(deg)
DEC_OBJ =             -30.3700 / planned target DEC.(deg)
RA_NOM  = 2.662629000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -3.037220000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             263.6011 / nominal position angle from north to DETY(deg)
MEAN_EA1=     266.262914419405 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     120.372245262606 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     186.398884847975 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2006-10-07T02:16:52' / Start date of observations
DATE-END= '2006-10-08T10:19:19' / End date of observations
TSTART  = 2.135049270000000E+08 / time start
TSTOP   = 2.136174870000000E+08 / time stop
TELAPSE = 1.125600000000000E+05 / elapsed time
ONTIME  = 5.067069807872176E+04 / On-source time
EXPOSURE= 5.067069807872176E+04 / Exposure time
MJD-OBS = 5.401512258314814E+04 / MJD of data start time
FILIN001= 'ae501010010xi0_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= 'ae501010010xi1_0_3x3n001b_cl.evt.gz' / Input file name
FILIN003= 'ae501010010xi2_0_3x3n000a_cl.evt.gz' / Input file name
FILIN004= 'ae501010010xi3_0_3x3n000a_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:

So far, the evidence for hadron acceleration up to near the knee energy has not yet obtained. Recent galactic plane survey in the TeV gamma-ray band reveals several new unidentified sources like HESS J1745-303. It is extended, hence likely a supernova remnant. Also it coincides with an EGRET unidentified source (3EG J1744-3011), which may suggest that it is a source of accelerated protons. However, HESS J1745-303 shows rather hard spectrum that cannot be explained by the simplest version of the diffusive shock acceleration model. X-ray study on HESS J1745-303 is necessary for further discussions. We might find that observed data requires modification of the common picture that young supernova remnants are the dominant source of high-energy protons.