Suzaku Observation : 805069010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '805069010'          / Observation identification string
OBSERVER= 'PHILIP JOHN HUMPHREY' / Principal Investigator
OBJECT  = 'NGC 720 OFFSET'     / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =              28.2615 / planned target R.A.(deg)
DEC_OBJ =             -13.4956 / planned target DEC.(deg)
RA_NOM  = 2.826730000000000E+01 / Right Ascension of target (deci. deg)
DEC_NOM = -1.349830000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             242.4040 / nominal position angle from north to DETY(deg)
MEAN_EA1=      28.267309973909 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     103.498287440260 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     207.595985307088 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2010-12-30T06:06:17' / Start date of observations
DATE-END= '2011-01-04T06:00:18' / End date of observations
TSTART  = 3.470043930000000E+08 / time start
TSTOP   = 3.474360045016384E+08 / time stop
TELAPSE = 4.316115016383529E+05 / elapsed time
ONTIME  = 2.239722753243446E+05 / On-source time
EXPOSURE= 2.239722753243446E+05 / Exposure time
MJD-OBS = 5.556025529148148E+04 / MJD of data start time
FILIN001= 'ae805069010xi0_0_3x3n066l_cl.evt.gz' / Input file name
SEQPNUM =                    2 / Number of times this dataset processed
PROCVER = '3.0.22.44'          / Processing script version
MK1STVER= 'mk1stfits20120530'  / Version of mk1stfits used
SOFTVER = 'Hea_08Feb2016_V6.18_Suzaku_14Nov2013_V22' / Version of HEADAS used
CALDBVER= 'hxd20110913_xis20160607_xrt20110630_xrs20060410' / Version of CALDB u
FILIN002= 'ae805069010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae805069010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae805069010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae805069010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae805069010xi3_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:

Models of galaxy formation suggest that as many as half the baryons may reside in an extended, hot halo. Detecting such a halo around a disk galaxy is, however, extremely challenging for current instrumentation. We propose instead to measure the baryon content of an isolated, X-ray bright elliptical galaxy (Mvir~6E12Msun), which provides the best opportunity to take a census of the baryons in a normal, galaxy-scale system. Currently little is known about the total baryon content of such objects, which are the likely end points of spiral galaxy merging. Combined with archival data, our offset pointing will enable the gas to be traced to ~0.75R500, comparable to what has been achieved for galaxy groups and clusters.