Suzaku Observation : 807046010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '807046010'          / Observation identification string
OBSERVER= 'MICHAEL LOEWENSTEIN' / Principal Investigator
OBJECT  = 'SEGUE 1 '           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             151.7667 / planned target R.A.(deg)
DEC_OBJ =              16.0819 / planned target DEC.(deg)
RA_NOM  = 1.517658000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 1.608620000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             110.8027 / nominal position angle from north to DETY(deg)
MEAN_EA1=     151.765780784655 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      73.913764597708 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     339.197261708020 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2012-11-17T01:46:39' / Start date of observations
DATE-END= '2012-11-19T07:38:15' / End date of observations
TSTART  = 4.064320110000000E+08 / time start
TSTOP   = 4.066255396597819E+08 / time stop
TELAPSE = 1.935286597818732E+05 / elapsed time
ONTIME  = 8.546220670813322E+04 / On-source time
EXPOSURE= 8.546220670813322E+04 / Exposure time
MJD-OBS = 5.624807494425926E+04 / MJD of data start time
FILIN001= 'ae807046010xi0_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= 'ae807046010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae807046010xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN004= 'ae807046010xi1_0_5x5n130b_cl.evt.gz' / Input file name
FILIN005= 'ae807046010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae807046010xi3_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:

Our ongoing dedicated X-ray search for dark matter targeting dwarf spheroidal galaxies set new constraints on the mass and mixing angle of the sterile neutrino -- a plausible dark matter candidate that emits an X-ray via radiative decay. We have proposed a new well-motivated candidate -- moduli dark matter, that also produces a detectable X-ray line. We propose Suzaku observations of the Segue 1 dwarf spheroidal -- the most dark matter dominated galaxy known. Its extreme nature implies that it provides the tightest constraints on sterile neutrino and moduli parameters in the event of a detection, and best limits in the absence of one. The resulting spectrum is optimal for exploring new physics, such as string theory compactification or supersymmetry breaking, and as a legacy for Astro-H.