Suzaku Observation : 404041010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '404041010'          / Observation identification string
OBSERVER= 'EDWARD M CACKETT'   / Principal Investigator
OBJECT  = 'SKY(270, +25)'      / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             270.2842 / planned target R.A.(deg)
DEC_OBJ =              25.0792 / planned target DEC.(deg)
RA_NOM  = 2.702558000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 2.515040000000000E+01 / Declination of target (deci. deg)
PA_NOM  =              70.6538 / nominal position angle from north to DETY(deg)
MEAN_EA1=     270.255805304766 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      64.849621036079 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=      19.346223017418 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2010-03-29T13:29:17' / Start date of observations
DATE-END= '2010-03-30T07:11:15' / End date of observations
TSTART  = 3.231873233224370E+08 / time start
TSTOP   = 3.232480654601048E+08 / time stop
TELAPSE = 6.074213766771555E+04 / elapsed time
ONTIME  = 2.097571941912174E+03 / On-source time
EXPOSURE= 2.097571941912174E+03 / Exposure time
MJD-OBS = 5.528459476280598E+04 / MJD of data start time
FILIN001= 'ae404041010xi0_0_3x3b118l_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= 'ae404041010xi0_0_5x5b118l_cl.evt.gz' / Input file name
FILIN003= 'ae404041010xi1_0_3x3b121b_cl.evt.gz' / Input file name
FILIN004= 'ae404041010xi1_0_5x5b121b_cl.evt.gz' / Input file name
FILIN005= 'ae404041010xi3_0_3x3b119a_cl.evt.gz' / Input file name
FILIN006= 'ae404041010xi3_0_5x5b119a_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 has recently revealed relativistically broadened Fe Kalpha emission lines in the spectra of neutron star low-mass X-ray binaries (LMXBs). We have now seen these lines in 10 neutron star LMXBs that we have examined, allowing measurements of the inner accretion disk radius, and hence an upper limit on the neutron star radius in all these objects. Only with the sensitivity of Suzaku, its high effective area in the Fe K band, and its broad bandpass has it been possible to robustly determine the shape of the lines. With a longer-term aim of completing a census of iron lines in neutron star LMXBs, we request a total of 200 ks to observe 5 neutron star low-mass X-ray binaries to study the relativistic broadening in the Fe Kalpha emission line profiles.