Suzaku Observation : 404056010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '404056010'          / Observation identification string
OBSERVER= 'DAVID C MORRIS'     / Principal Investigator
OBJECT  = 'IGRJ16393-4643'     / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             249.7725 / planned target R.A.(deg)
DEC_OBJ =             -46.7033 / planned target DEC.(deg)
RA_NOM  = 2.497688000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = -4.670090000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             111.6627 / nominal position angle from north to DETY(deg)
MEAN_EA1=     249.768813919709 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     136.700920713285 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     338.337258498972 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2010-03-12T23:40:40' / Start date of observations
DATE-END= '2010-03-14T10:49:14' / End date of observations
TSTART  = 3.217545520000000E+08 / time start
TSTOP   = 3.218768870000000E+08 / time stop
TELAPSE = 1.223350000000000E+05 / elapsed time
ONTIME  = 5.056395998859406E+04 / On-source time
EXPOSURE= 5.056395998859406E+04 / Exposure time
MJD-OBS = 5.526801176138889E+04 / MJD of data start time
FILIN001= 'ae404056010xi0_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= 'ae404056010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae404056010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae404056010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae404056010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae404056010xi3_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:

Stellar winds play a critical role in several as yet poorly understood astrophysical processes. One of the best laboratories for studying winds is in wind fed Supergiant High Mass X-ray binaries. Using the neutron star (NS) as a backlight, variable absorption in X-rays measures column density variations in the secondary star wind. A recent explosion in the number of known HMXBs has defined two additional subclasses of HMXBs, potentially related through geometry and wind properties: 1) heavily obscured sources and 2) so-called Supergiant Fast X-ray Transients (SFXTs). We propose observations of 2 obscured sgHMXBs and 2 SFXTs to monitor the column density. This will test wind models and probe whether these subclasses are related to one another and to classical HMXBs through wind parameters.