Suzaku Observation : 501105010

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  = '501105010'          / Observation identification string
OBSERVER= 'JAMES ANTHONY HINTON' / Principal Investigator
OBJECT  = 'HESS J1718-385'     / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             259.5542 / planned target R.A.(deg)
DEC_OBJ =             -38.6064 / planned target DEC.(deg)
RA_NOM  = 2.595512000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -3.860750000000000E+01 / Declination of target (deci. deg)
PA_NOM  =              91.2393 / nominal position angle from north to DETY(deg)
MEAN_EA1=     259.551183107320 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     128.607489456157 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     358.760726678539 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2007-02-23T08:36:38' / Start date of observations
DATE-END= '2007-02-23T18:39:24' / End date of observations
TSTART  = 2.255385320000000E+08 / time start
TSTOP   = 2.255706590000000E+08 / time stop
TELAPSE = 3.212700000000000E+04 / elapsed time
ONTIME  = 2.074400000000000E+04 / On-source time
EXPOSURE= 2.074400000000000E+04 / Exposure time
MJD-OBS = 5.415440041879629E+04 / MJD of data start time
FILIN001= 'ae501105010xi0_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= 'ae501105010xi1_0_3x3n001b_cl.evt.gz' / Input file name
FILIN003= 'ae501105010xi3_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:

HESS J1718-385 is a newly discovered TeV gamma-ray source, with an unusually hard energy spectrum, which lies in close proximity to an energetic pulsar. It is likely that this object belongs to the class of offset pulsar wind nebula (PWN), accelerating electrons and positrons up to ~100 TeV. So far no sensitive X-ray observations of this region have taken place. The synchrotron spectrum of the nebula is predicted to peak in the energy range of the Suzaku HXD. The unprecedented high energy sensitivity of this instrument is required to study the highest energy particles accelerated in this object. Spectral measurements by Suzaku would confirm the inverse-Compton origin of the VHE gamma-rays and place tight constraints on the maximum energy of accelerated electrons.