Suzaku Observation : 407040010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '407040010'          / Observation identification string
OBSERVER= 'ATSUSHI HARAYAMA'   / Principal Investigator
OBJECT  = 'PG 1658 +440'       / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             254.9518 / planned target R.A.(deg)
DEC_OBJ =              44.0178 / planned target DEC.(deg)
RA_NOM  = 2.549348000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 4.400940000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             330.9998 / nominal position angle from north to DETY(deg)
MEAN_EA1=     254.934821216539 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      45.990596950626 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     119.000166198887 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2012-07-07T16:10:42' / Start date of observations
DATE-END= '2012-07-08T19:55:21' / End date of observations
TSTART  = 3.949926830000000E+08 / time start
TSTOP   = 3.950905050000000E+08 / time stop
TELAPSE = 9.782200000000000E+04 / elapsed time
ONTIME  = 5.103290013682842E+04 / On-source time
EXPOSURE= 5.103290013682842E+04 / Exposure time
MJD-OBS = 5.611567531462963E+04 / MJD of data start time
FILIN001= 'ae407040010xi0_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= 'ae407040010xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN003= 'ae407040010xi3_0_3x3n066a_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:

The main purpose of the proposal is to search for possible non-thermal emission from isolated white dwarfs (WDs) with Suzaku. The origins of cosmic-rays are a long standing mystery for just 100 years in AO-7 phase from a discovery by Hess. One of the most important milestones recently is the discovery of a hint of "a WD pulsar" in the AE Aquarii system with Suzaku, because number density of this class is much larger than those of famous acceleration sites like SNRs, NS pulsars, etc. The next step is to detect non thermal emissions from isolated WDs. We search for promising objects from a large sample of white dwarfs by SDDS survey, and finally found three isolated magnetized WDs; EUVE J1439+75.0, PG 1658+440 and EUVE J0823-25.4. Here, we propose Suzaku observations of these objects.