Suzaku Observation : 500015010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '500015010'          / Observation identification string
OBSERVER= 'Suzaku SWG'         / Principal Investigator
OBJECT  = 'MBM12   '           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =              44.0000 / planned target R.A.(deg)
DEC_OBJ =              19.4900 / planned target DEC.(deg)
RA_NOM  = 4.400420000000000E+01 / Right Ascension of target (deci. deg)
DEC_NOM = 1.948700000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             253.4644 / nominal position angle from north to DETY(deg)
MEAN_EA1=      44.004249784662 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      70.513026661979 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     196.535637279219 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2006-02-03T23:02:29' / Start date of observations
DATE-END= '2006-02-06T15:30:18' / End date of observations
TSTART  = 1.923277736023754E+08 / time start
TSTOP   = 1.925526460000000E+08 / time stop
TELAPSE = 2.248723976246417E+05 / elapsed time
ONTIME  = 1.029371232177019E+05 / On-source time
EXPOSURE= 1.029371232177019E+05 / Exposure time
MJD-OBS = 5.377001664104601E+04 / MJD of data start time
FILIN001= 'ae500015010xi0_0_3x3n000c_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= 'ae500015010xi0_0_5x5n000c_cl.evt.gz' / Input file name
FILIN003= 'ae500015010xi1_0_3x3n001b_cl.evt.gz' / Input file name
FILIN004= 'ae500015010xi1_0_5x5n001b_cl.evt.gz' / Input file name
FILIN005= 'ae500015010xi2_0_3x3n000c_cl.evt.gz' / Input file name
FILIN006= 'ae500015010xi2_0_5x5n000c_cl.evt.gz' / Input file name
FILIN007= 'ae500015010xi3_0_3x3n000c_cl.evt.gz' / Input file name
FILIN008= 'ae500015010xi3_0_5x5n000c_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 can potentially determine the time since the nearby supernova that created (or reheated) the Local Hot Bubble (LHB) by measuring the ratio of the O VII/O VIII lines emitted by the LHB. The LHB temperature is ~10^6 K, and in equilibrium we would expect no O VIII emission. However, the LHB is almost certainly not in equilibrium, and it is quite possible that significant O^{+7} is still recombining (and emitting O VIII) following its creation in the most recent local supernova 2-4 Myr ago. We propose to measure these lines from the LHB using the nearby molecular cloud MBM12 as a curtain to shadow more distant emission. Even if O VIII is not detected, the O VII measurement will be the first unambiguous measurement of a line from the LHB.