Suzaku Observation : 501106010

QL FITS Image

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Fits Header
TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '501106010'          / Observation identification string
OBSERVER= 'MASARU UENO'        / Principal Investigator
OBJECT  = 'G156.2+5.7 CENTER'  / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =              74.7208 / planned target R.A.(deg)
DEC_OBJ =              51.7422 / planned target DEC.(deg)
RA_NOM  = 7.472300000000000E+01 / Right Ascension of target (deci. deg)
DEC_NOM = 5.173420000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             273.4473 / nominal position angle from north to DETY(deg)
MEAN_EA1=      74.722974018491 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      38.265834063718 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     176.552698173650 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2007-02-17T18:09:49' / Start date of observations
DATE-END= '2007-02-18T22:00:24' / End date of observations
TSTART  = 2.250524025512236E+08 / time start
TSTOP   = 2.251512097923088E+08 / time stop
TELAPSE = 9.880724108523130E+04 / elapsed time
ONTIME  = 5.123022249478102E+04 / On-source time
EXPOSURE= 5.123022249478102E+04 / Exposure time
MJD-OBS = 5.414877392054657E+04 / MJD of data start time
FILIN001= 'ae501106010xi0_0_3x3n066a_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= 'ae501106010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN003= 'ae501106010xi3_0_3x3n066a_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:

Recent observations revealed that about 10 shell-like supernova remnants (SNRs) exhibit power-law X-ray spectra with no emission line which are considered to be synchrotron radiation from high-energy electrons (larger than 1 TeV). However, all those samples are young SNRs (ages about 300-2000 yr). G156.2+5.7 is an old SNR (age about 10^4 year), but emits hard X-rays in addition to usual thin thermal emission (about 0.5 keV temperature). We propose a Suzaku observation on a center region of this SNR, where diffuse hard X-rays were detected with ASCA and XMM. Our primary objective is to determine whether or not the hard tail is synchrotron X-rays, and study cosmic-ray acceleration in this old SNR.