Suzaku Observation : 405033010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '405033010'          / Observation identification string
OBSERVER= 'KEN EBISAWA'        / Principal Investigator
OBJECT  = 'XSS J17223-7301'    / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             259.7083 / planned target R.A.(deg)
DEC_OBJ =             -73.4241 / planned target DEC.(deg)
RA_NOM  = 2.596949000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -7.342630000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             106.6643 / nominal position angle from north to DETY(deg)
MEAN_EA1=     259.694925312979 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     163.426273990331 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     343.335742587308 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2010-04-16T03:39:49' / Start date of observations
DATE-END= '2010-04-16T14:15:17' / End date of observations
TSTART  = 3.247049270000000E+08 / time start
TSTOP   = 3.247425032455775E+08 / time stop
TELAPSE = 3.757624557745457E+04 / elapsed time
ONTIME  = 3.338611987960339E+04 / On-source time
EXPOSURE= 3.338611987960339E+04 / Exposure time
MJD-OBS = 5.530215962018519E+04 / MJD of data start time
FILIN001= 'ae405033010xi0_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= 'ae405033010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae405033010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae405033010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae405033010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae405033010xi3_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:

Recently, an ultra-deep Chandra observation was conducted to resolve the Galactic Ridge X-ray Emission (GRXE), and more than 80 percent of the GRXE was resolved into point sources in the iron energy band. However, we do not know what these point sources are, that have strong iron line emission. We have compared the GRXE iron line structure and those of cataclysmic variables (CVs) using Suzaku, and found that the CVs tend to emit stronger H-like line at 6.97 keV compared to the GRXE. We need another kind of sources which preferentially emit 6.7 keV line to explain the GRXE. We propose to study iron line structures of four active binary candidates from the XTE Slew Survey catalog, which are candidates of the 6.7 keV line sources.