Suzaku Observation : 506005010

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  = '506005010'          / Observation identification string
OBSERVER= 'AYA BAMBA'          / Principal Investigator
OBJECT  = 'HB21 SOUTH'         / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             311.2500 / planned target R.A.(deg)
DEC_OBJ =              50.5833 / planned target DEC.(deg)
RA_NOM  = 3.112512000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 5.060160000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             105.4920 / nominal position angle from north to DETY(deg)
MEAN_EA1=     311.251230202468 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      39.398367110643 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     344.507986752896 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2011-04-09T08:30:06' / Start date of observations
DATE-END= '2011-04-11T19:34:21' / End date of observations
TSTART  = 3.556548555503597E+08 / time start
TSTOP   = 3.558656437687627E+08 / time stop
TELAPSE = 2.107882184030414E+05 / elapsed time
ONTIME  = 1.323709494932294E+05 / On-source time
EXPOSURE= 1.323709494932294E+05 / Exposure time
MJD-OBS = 5.566037638581434E+04 / MJD of data start time
FILIN001= 'ae506005010xi0_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= 'ae506005010xi0_0_5x5n066h_cl.evt.gz' / Input file name
FILIN003= 'ae506005010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN004= 'ae506005010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN005= 'ae506005010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN006= 'ae506005010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN007= 'ae506005010xi3_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:

Over-ionization in SNRs is one of the biggest mystery Suzaku discovered. It affects a lot the study on chemical and thermal evolution of universe, but the origin is still unknown. HB21 is an old SNR with molecular cloud interaction and GeV gamma-rays, which remind us typical over-ionization SNRs. On the other hand, the interacting molecular cloud is much smaller or thinner than those interacting with over-ionization SNRs, and as a result, HB21 can be the key target to study the origin of over-ionization. Suzaku deep observation of HB21 south (interacting point) will determine the condition of plasma and judge whether it is in over-ionization or not, which will show us the origin of over-ionizing plasma.