Suzaku Observation : 504031010

HTTP dir for public data including pipe-line products
SUZAKU MASTER for master database
UDON2 to quickly extract spectrum and light-curve
JUDO2 to show the pointing position and compare with other data

Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '504031010'          / Observation identification string
OBSERVER= 'AYA BAMBA'          / Principal Investigator
OBJECT  = 'HESS J1731-347 SW'  / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             263.0097 / planned target R.A.(deg)
DEC_OBJ =             -34.9500 / planned target DEC.(deg)
RA_NOM  = 2.630074000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -3.494580000000000E+01 / Declination of target (deci. deg)
PA_NOM  =              92.6086 / nominal position angle from north to DETY(deg)
MEAN_EA1=     263.007353818337 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     124.945835324522 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     357.391372724360 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2010-02-18T17:16:48' / Start date of observations
DATE-END= '2010-02-19T12:33:19' / End date of observations
TSTART  = 3.198286138987597E+08 / time start
TSTOP   = 3.198979838852535E+08 / time stop
TELAPSE = 6.936998649388552E+04 / elapsed time
ONTIME  = 4.187786981815100E+04 / On-source time
EXPOSURE= 4.187786981815100E+04 / Exposure time
MJD-OBS = 5.524572081114305E+04 / MJD of data start time
FILIN001= 'ae504031010xi0_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= 'ae504031010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae504031010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae504031010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae504031010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae504031010xi3_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:

Supernova Remnants (SNRs) detected with TeV gamma-rays and synchrotron X-rays (TeV SNRs) are the most plausible acceleration sites of Galactic cosmic rays. However, the environments of such SNRs, temperature, density, and so on, are still unknown due to the lack of thermal X-ray emission in their spectra. HESS J1731-347 is one of only 3 TeV SNRs which have a radio shell and possible thermal X-rays. With good statistics and low background observation of Suzaku XIS, we will detect thermal X-rays from the shell of HESS J1731-347 for the first time. Determining the thermal parameters will reveal us what kind of environment makes ordinal SNRs to TeV SNRs and how TeV SNRs accelerate cosmic rays in such condition.