Suzaku Observation : 403046010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '403046010'          / Observation identification string
OBSERVER= 'KATJA POTTSCHMIDT'  / Principal Investigator
OBJECT  = 'CENTAURUS X-3'      / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             170.3158 / planned target R.A.(deg)
DEC_OBJ =             -60.6230 / planned target DEC.(deg)
RA_NOM  = 1.703244000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -6.057210000000000E+01 / Declination of target (deci. deg)
PA_NOM  =              97.3521 / nominal position angle from north to DETY(deg)
MEAN_EA1=     170.324382659652 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     150.572118582575 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     352.647873732116 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2008-12-08T06:55:36' / Start date of observations
DATE-END= '2008-12-10T05:00:19' / End date of observations
TSTART  = 2.820345464497600E+08 / time start
TSTOP   = 2.821993450000000E+08 / time stop
TELAPSE = 1.647985502399802E+05 / elapsed time
ONTIME  = 4.846081629657745E+04 / On-source time
EXPOSURE= 4.846081629657745E+04 / Exposure time
MJD-OBS = 5.480828947492778E+04 / MJD of data start time
FILIN001= 'ae403046010xi0_0_3x3b093a_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= 'ae403046010xi0_0_5x5b093a_cl.evt.gz' / Input file name
FILIN003= 'ae403046010xi1_0_3x3b107b_cl.evt.gz' / Input file name
FILIN004= 'ae403046010xi1_0_5x5b107b_cl.evt.gz' / Input file name
FILIN005= 'ae403046010xi3_0_3x3b096a_cl.evt.gz' / Input file name
FILIN006= 'ae403046010xi3_0_5x5b096a_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:

We ask for a 90 ks observation (which will be performed within typically 180 ks taking Suzaku's duty cycle into account) of the accreting HMXB Centaurus X-3 to conduct the most sensitive study to date of the wide range of changes of its broad band spectrum over one 2.1 binary orbit and with pulse phase. Especially we will determine the evolution of the hydrogen absorption column over the orbit and test whether signatures of the tidal wake observed with RXTE can be confirmed. The variable Fe line complex will be studied. The cyclotron resonance scattering feature of Cen X-3 at ~30 keV is especially well suited to test new physical models describing phase-resolved line profiles, since it is very variable over the pulse, with the line centroid spanning an energy range from 28 to 39 keV.