Suzaku Observation : 402033010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '402033010'          / Observation identification string
OBSERVER= 'ALEXANDER BROWN'    / Principal Investigator
OBJECT  = 'SIGMA GEM'          / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             115.8281 / planned target R.A.(deg)
DEC_OBJ =              28.8832 / planned target DEC.(deg)
RA_NOM  = 1.158430000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 2.894380000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             104.4403 / nominal position angle from north to DETY(deg)
MEAN_EA1=     115.843004088909 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      61.056226263225 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     345.559744227904 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2007-10-21T09:48:59' / Start date of observations
DATE-END= '2007-10-24T23:15:23' / End date of observations
TSTART  = 2.462773130000000E+08 / time start
TSTOP   = 2.465829074098736E+08 / time stop
TELAPSE = 3.055944098736346E+05 / elapsed time
ONTIME  = 1.430696822443306E+05 / On-source time
EXPOSURE= 1.430696822443306E+05 / Exposure time
MJD-OBS = 5.439443260629629E+04 / MJD of data start time
FILIN001= 'ae402033010xi0_0_3x3n090a_cl.evt.gz' / Input file name
SEQPNUM =                    4 / 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= 'ae402033010xi0_0_5x5n090a_cl.evt.gz' / Input file name
FILIN003= 'ae402033010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae402033010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae402033010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae402033010xi3_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:

Suzaku is a powerful instrument for studying the hot (>100 MK) coronal quiescent and flare emission on RS CVn binaries. We propose a 125 ksec (3-4 day elapsed time) observation of the RS CVn binary Sigma Gem. Our goals are i) to better characterize its hard (>10 keV) emission, ii) to understand the origin of coronal thermal and nonthermal plasma by studying the evolution of the coronal thermal structure, iii) to investigate the persistent and flaring nonthermal electron population using a combination of X-ray and radio cm+mm continuum data, and iv) compare long duration flares on Sigma Gem with the 6 hour flares of Sigma2 CrB. Such studies require the long duty cycle of Suzaku observations and its high sensitivity, particularly the greatly enhanced capability at 10-25 keV provided by HXD.