Suzaku Observation : 802082010

QL FITS Image

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Fits Header
TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '802082010'          / Observation identification string
OBSERVER= 'JOEL N BREGMAN'     / Principal Investigator
OBJECT  = 'COMA11  '           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             194.6319 / planned target R.A.(deg)
DEC_OBJ =              28.4037 / planned target DEC.(deg)
RA_NOM  = 1.946305000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 2.839390000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             292.5148 / nominal position angle from north to DETY(deg)
MEAN_EA1=     194.630453611526 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      61.606148369744 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     157.485193990462 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2007-06-19T15:27:37' / Start date of observations
DATE-END= '2007-06-21T00:11:14' / End date of observations
TSTART  = 2.355821590000000E+08 / time start
TSTOP   = 2.356992750000000E+08 / time stop
TELAPSE = 1.171160000000000E+05 / elapsed time
ONTIME  = 5.302173948279023E+04 / On-source time
EXPOSURE= 5.302173948279023E+04 / Exposure time
MJD-OBS = 5.427064610166667E+04 / MJD of data start time
FILIN001= 'ae802082010xi0_0_3x3n066a_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= 'ae802082010xi0_0_5x5n066a_cl.evt.gz' / Input file name
FILIN003= 'ae802082010xi1_0_3x3n069b_cl.evt.gz' / Input file name
FILIN004= 'ae802082010xi1_0_5x5n069b_cl.evt.gz' / Input file name
FILIN005= 'ae802082010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae802082010xi3_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:

Several authors have claimed to detect soft X-ray excesses toward some clusters of galaxies, but most are contested by other studies. The only exception is the Coma cluster, where all investigators agree on the presence of the excess, which is especially bright toward one off-centered region, a potential cosmic filament draining into Coma. This excess has bright OVIII emission, so the gas must be thermal, and at the distance of Coma, the mass is of cosmological importance. However, it is possible that this soft excess is due to emission from the halo of the Milky Way, as Coma lies in a valley of particularly low Galactic column density. We propose to distinguish between the Milky Way and Coma origins by measuring the redshift of the OVIII emission line.