Suzaku Observation : 503108010

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  = '503108010'          / Observation identification string
OBSERVER= 'GERD R. PUEHLHOFER' / 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 =             -38.4581 / planned target DEC.(deg)
RA_NOM  = 2.595578000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -3.845840000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             266.9006 / nominal position angle from north to DETY(deg)
MEAN_EA1=     259.557787213379 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     128.458406313069 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     183.099359696551 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2008-08-28T05:36:23' / Start date of observations
DATE-END= '2008-08-28T22:17:14' / End date of observations
TSTART  = 2.732170440000000E+08 / time start
TSTOP   = 2.732752580000000E+08 / time stop
TELAPSE = 5.821400000000000E+04 / elapsed time
ONTIME  = 2.350970718991756E+04 / On-source time
EXPOSURE= 2.350970718991756E+04 / Exposure time
MJD-OBS = 5.470623504842592E+04 / MJD of data start time
FILIN001= 'ae503108010xi0_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= 'ae503108010xi0_0_5x5n066a_cl.evt.gz' / Input file name
FILIN003= 'ae503108010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae503108010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae503108010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae503108010xi3_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:

HESS J1718-385 is a newly discovered Very High Energy (VHE) source with an unusually hard energy spectrum, close to an energetic pulsar. The classification as a VHE Pulsar Wind Nebula (PWN) was confirmed by observations of the region with XMM-Newton and Suzaku. XMM showed a compact X-ray PWN around the pulsar, whereas Suzaku revealed low surface brightness emission close to the VHE source. To morphologically connect this low surface brightness emission to the X-ray PWN, we propose another short, 20 ksec Suzaku pointing, aiming between the VHE source center and the pulsar location. The data will allow to identify the new Suzaku source with the compact X-ray PWN. The spectra will be used to investigate the unusual particle energy distribution that is derived from the hard VHE spectrum.