Suzaku Observation : 406040010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '406040010'          / Observation identification string
OBSERVER= 'KENJI HAMAGUCHI'    / Principal Investigator
OBJECT  = 'GAMMA CASSIOPEIAE'  / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =              14.1772 / planned target R.A.(deg)
DEC_OBJ =              60.7168 / planned target DEC.(deg)
RA_NOM  = 1.415980000000000E+01 / Right Ascension of target (deci. deg)
DEC_NOM = 6.073560000000000E+01 / Declination of target (deci. deg)
PA_NOM  =              72.5084 / nominal position angle from north to DETY(deg)
MEAN_EA1=      14.159766544091 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      29.264350437331 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=      17.491605379554 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2011-07-13T00:05:36' / Start date of observations
DATE-END= '2011-07-14T08:00:22' / End date of observations
TSTART  = 3.638322160000000E+08 / time start
TSTOP   = 3.639434028222593E+08 / time stop
TELAPSE = 1.111868222593069E+05 / elapsed time
ONTIME  = 5.539397599565983E+04 / On-source time
EXPOSURE= 5.539397599565983E+04 / Exposure time
MJD-OBS = 5.575502176138889E+04 / MJD of data start time
FILIN001= 'ae406040010xi0_0_3x3n066l_cl.evt.gz' / Input file name
SEQPNUM =                    3 / 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= 'ae406040010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae406040010xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN004= 'ae406040010xi1_0_5x5n130b_cl.evt.gz' / Input file name
FILIN005= 'ae406040010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae406040010xi3_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:

We propose a 50 ks Suzaku observation to obtain for the first time the hard X-ray spectrum of the classical Be star Gamma Cas. This star is a prototype of the "Gamma Cas stars" class, whose nature is not yet understood. Earlier XMM-Newton and Swift BAT observations gave a hint of the presence of the hard X-ray emission above 10 keV. The broadband Suzaku spectrum will allow to establish its X-ray emission mechanism - non-thermal emission or reflection of thermal emission from a neutral surface. On this basis, we will be able to discriminate the mechanisms between the magnetic disk dynamo and the accretion on a compact star. These new data will be pivotal in solving the enigma of Gamma Cas and revealing the true nature of this astrophysically important object.