SUMMARY OF PROPOSAL 41020
MASTER KEN'ICHI TORII
OSAKA UNIVERSITY
OSAKA JAPAN 560
TOYONAKA-SHI
1-1 MACHIKANEYAMA-CHO

  E-mail: TORII@ESS.SCI.OSAKA-U.AC.JP	Tel: 06-850-5476	Fax: 06-850-5539
  Medium: 2.5GB8MM

Subject: STARS                                                       
  Title: OBSERVATION OF THE NEAREST NEUTRON STAR                                         


Abstract:
 We propose to observe a radio pulsar, J0108-1431, which is the nearest neutron star
 (NS) from the earth. The main purpose of the observation is to determine the
 temperature of the surface of the NS, and finally to examine the hypothesis of the
 magnetic field decay of the NSs. For this purpose, we deduce the true age of this NS
 observing the blackbody X-ray emission from its surface. The characteristic age,
 determined by the radio observation, is compared with the true age. If the magnetic
 field decays exponentially as short as 10**7 yr, the true age must be much younger
 than its characteristic age, resulting in the detection of the NS as a relatively
 bright soft X-ray source. If the NS is not detected, the upper limit of the
 temperature and the lower limit of the decay time are given.

 Co-Is:
   1  KIYOSHI HAYASHIDA   	OSAKA UNIV.                   JAPAN     
      HAYASIDA@ESS.SCI.OSAKA-U.AC.JP	06-850-5476
   2  KENJI KAWASHIMA     	OSAKA UNIV.                   JAPAN     
   3  YOSHIAKI OHNO       	OSAKA UNIV.                   JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
PSR J0108-1431         3   17.0342  -14.5294    20   N   N   P  2.00000   1