Suzaku Observation : 801097010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '801097010'          / Observation identification string
OBSERVER= 'CRAIG L. SARAZIN'   / Principal Investigator
OBJECT  = 'COMA RADIO HALO'    / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             194.9575 / planned target R.A.(deg)
DEC_OBJ =              27.9664 / planned target DEC.(deg)
RA_NOM  = 1.949267000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 2.790610000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             295.2687 / nominal position angle from north to DETY(deg)
MEAN_EA1=     194.926674210484 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      62.093882074870 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     154.731295302422 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2006-05-31T20:14:41' / Start date of observations
DATE-END= '2006-06-04T17:51:19' / End date of observations
TSTART  = 2.024249210000000E+08 / time start
TSTOP   = 2.027586601798529E+08 / time stop
TELAPSE = 3.337391798529327E+05 / elapsed time
ONTIME  = 1.787132868124843E+05 / On-source time
EXPOSURE= 1.787132868124843E+05 / Exposure time
MJD-OBS = 5.388688177296296E+04 / MJD of data start time
FILIN001= 'ae801097010xi0_0_3x3n000a_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= 'ae801097010xi0_0_5x5n000a_cl.evt.gz' / Input file name
FILIN003= 'ae801097010xi1_0_3x3n001b_cl.evt.gz' / Input file name
FILIN004= 'ae801097010xi1_0_5x5n001b_cl.evt.gz' / Input file name
FILIN005= 'ae801097010xi2_0_3x3n000a_cl.evt.gz' / Input file name
FILIN006= 'ae801097010xi2_0_5x5n000a_cl.evt.gz' / Input file name
FILIN007= 'ae801097010xi3_0_3x3n000a_cl.evt.gz' / Input file name
FILIN008= 'ae801097010xi3_0_5x5n000a_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:

We will observe the central regions of the Coma cluster with the HXD/PIN to detect and characterize the nonthermal Inverse Compton (IC) emission from the radio halo. Coma has the best-studied and brightest radio halo, which makes it the best case to detect IC and the most useful one for testing theories for the origin of radio halos. Previous detections with BeppoSAX and RXTE are controversial. Suzaku is more sensitive, will avoid contamination by nearby AGNs including X Comae, and will detect IC even if it is fainter than the claimed BeppoSAX detection. The HXD/PIN data will allow the cluster magnetic field, and nonthermal energy and pressure to be derived. The XIS observations will be used to determine accurate abundances and gradients in Coma, and to test theories for ICM enrichment.