Suzaku Observation : 504036010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '504036010'          / Observation identification string
OBSERVER= 'TAKESHI GO TSURU'   / Principal Investigator
OBJECT  = 'TORNADO '           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             265.1255 / planned target R.A.(deg)
DEC_OBJ =             -30.9473 / planned target DEC.(deg)
RA_NOM  = 2.651272000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -3.094900000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             269.1137 / nominal position angle from north to DETY(deg)
MEAN_EA1=     265.127242995902 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     120.949016012412 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     180.886279184153 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2009-08-29T12:05:20' / Start date of observations
DATE-END= '2009-09-01T00:13:24' / End date of observations
TSTART  = 3.048645208882874E+08 / time start
TSTOP   = 3.050791848587758E+08 / time stop
TELAPSE = 2.146639704884291E+05 / elapsed time
ONTIME  = 1.250772007105947E+05 / On-source time
EXPOSURE= 1.250772007105947E+05 / Exposure time
MJD-OBS = 5.507252529018851E+04 / MJD of data start time
FILIN001= 'ae504036010xi0_0_3x3n066l_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= 'ae504036010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae504036010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae504036010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae504036010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae504036010xi3_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:

The Tornado is an unusual and intense radio source located in the galactic center region. It has a polarized non-thermal radio spectrum. t has very unique morphology of elongated and loop-like structure. However, no crucial observational result determining the nature has been obtained. With the Suzaku AO3 observation of the Tornado (50ks), we found interesting signs of 2.45-keV He like S-K line, diffuse emission from the "tail" and the whole "head". The purpose of this observation is to obtain precise spectrum and spatial distribution. If the thermal S-K line is confirmed and it has a high metal abundance, the nature of the Tornado is an SNR. We also investigate the extreme structure of the tail and search for power-law component in spectra.