Suzaku Observation : 402039010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '402039010'          / Observation identification string
OBSERVER= 'KENJI HAMAGUCHI'    / Principal Investigator
OBJECT  = 'ETA CARINAE'        / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             161.2650 / planned target R.A.(deg)
DEC_OBJ =             -59.6845 / planned target DEC.(deg)
RA_NOM  = 1.612181000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -5.972820000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             289.0006 / nominal position angle from north to DETY(deg)
MEAN_EA1=     161.218089992910 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     149.728232047514 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     160.999378173757 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2007-06-23T05:54:08' / Start date of observations
DATE-END= '2007-06-24T21:38:14' / End date of observations
TSTART  = 2.358933206459564E+08 / time start
TSTOP   = 2.360360600000000E+08 / time stop
TELAPSE = 1.427393540435731E+05 / elapsed time
ONTIME  = 5.840404854276776E+04 / On-source time
EXPOSURE= 5.840404854276776E+04 / Exposure time
MJD-OBS = 5.427424750960598E+04 / MJD of data start time
FILIN001= 'ae402039010xi0_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= 'ae402039010xi0_0_5x5n066a_cl.evt.gz' / Input file name
FILIN003= 'ae402039010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae402039010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae402039010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae402039010xi3_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:

XMM-Newton observations in 2003 suggest that X-ray emission from Eta Carinae has a hard X-ray component above 10 keV in addition to the thermal emission with kT ~3-5 keV. The excess is apparently strongest near the 2-10 keV X-ray maximum, and possibly produced by very hot plasma or 1st-order Fermi acceleration of particles which then inverse Compton-upscatter UV seed photons from the stellar photospheres. We propose a 50 ksec observation of Eta Carinae with the Suzaku telescope during AO2, compare the X-ray spectrum with earlier observations and determine the level of emission at E >9 keV.