Suzaku Observation : 507027010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '507027010'          / Observation identification string
OBSERVER= 'HIROKAZU ODAKA'     / Principal Investigator
OBJECT  = 'HESS J1457-593'     / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             224.4410 / planned target R.A.(deg)
DEC_OBJ =             -59.4772 / planned target DEC.(deg)
RA_NOM  = 2.244524000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -5.947620000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             305.8997 / nominal position angle from north to DETY(deg)
MEAN_EA1=     224.452354462770 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     149.476214613497 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     144.100325188475 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2012-09-15T02:32:40' / Start date of observations
DATE-END= '2012-09-16T00:31:13' / End date of observations
TSTART  = 4.009915670882635E+08 / time start
TSTOP   = 4.010706606922408E+08 / time stop
TELAPSE = 7.909360397726297E+04 / elapsed time
ONTIME  = 3.106389372074604E+04 / On-source time
EXPOSURE= 3.106389372074604E+04 / Exposure time
MJD-OBS = 5.618510684342898E+04 / MJD of data start time
FILIN001= 'ae507027010xi0_0_3x3n066l_cl.evt.gz' / Input file name
SEQPNUM =                    2 / Number of times this dataset processed
PROCVER = '3.0.22.44'          / Processing script version
MK1STVER= 'mk1stfits20120530'  / Version of mk1stfits used
SOFTVER = 'Hea_08Feb2016_V6.18_Suzaku_14Nov2013_V22' / Version of HEADAS used
CALDBVER= 'hxd20110913_xis20160607_xrt20110630_xrs20060410' / Version of CALDB u
FILIN002= 'ae507027010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae507027010xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN004= 'ae507027010xi1_0_5x5n130b_cl.evt.gz' / Input file name
FILIN005= 'ae507027010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae507027010xi3_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 X-ray observation of the putative SNR-molecular cloud interaction HESS J1457-593 with the Suzaku XIS detector for 30 ks. The aim of the observation is to clarify whether the TeV gamma-ray emission is of a leptonic or hadronic origin by searching for an X-ray counterpart to a level down to $10^{-14}$~erg cm$^{-2}$ s$^{-1}$. A non-detection of an X-ray nebula would strongly disfavor a leptonic origin of the TeV emission and add to the already strong multi-wavelength data which all suggests a hadronic origin of the emission. Since the spectrum of this unique source extends above many tens of TeV this would mean that we see, for the first time, evidence for hadronic cosmic rays being accelerated up to PeV energies.