Suzaku Observation : 807049010

QL FITS Image

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Fits Header
TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '807049010'          / Observation identification string
OBSERVER= '        '           / Principal Investigator
OBJECT  = 'FG25    '           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             234.9617 / planned target R.A.(deg)
DEC_OBJ =              30.7178 / planned target DEC.(deg)
RA_NOM  = 2.349579000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 3.070580000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             294.6599 / nominal position angle from north to DETY(deg)
MEAN_EA1=     234.957907974569 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      59.294244208209 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     155.340141112705 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2012-07-28T18:06:02' / Start date of observations
DATE-END= '2012-07-29T01:58:21' / End date of observations
TSTART  = 3.968172377432786E+08 / time start
TSTOP   = 3.968420150000000E+08 / time stop
TELAPSE = 2.477725672143698E+04 / elapsed time
ONTIME  = 1.063925751358271E+04 / On-source time
EXPOSURE= 1.063925751358271E+04 / Exposure time
MJD-OBS = 5.613679284638054E+04 / MJD of data start time
FILIN001= 'ae807049010xi0_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= 'ae807049010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae807049010xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN004= 'ae807049010xi1_0_5x5n130b_cl.evt.gz' / Input file name
FILIN005= 'ae807049010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae807049010xi3_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:

Optical and X-ray measurements of fossil groups/clusters (FGs) suggest that they are old and relaxed systems. If FGs are assembled at higher redshift, there is enough time for intermediate-luminosity galaxies to merge, resulting in the formation of the brightest system galaxy. We carry out the first, systematic study of a large sample of FGs, the ``FOssil Group Origins'' (FOGO) based on an International Time Project at the Roque de los Muchachos Observatory. For ten FOGO FGs we propose to measure the temperature of the hot intracluster gas (ICM) and to evaluate Lx-Tx, Lopt-Tx, and sigmaV-Tx relations as compared to the non fossil systems. By combining these observations with hydrodynamical simulations we will open a new window into the study of the ICM and the nature of fossil systems.