SUMMARY OF PROPOSAL 41240
MR AKIHIRO FURUZAWA
NAGOYA UNIVERSITY
AICHI JAPAN 464-01
NAGOYA
CHIKUSA-KU

  E-mail: FURUZAWA@SATIO.PHYS.NAGOYA-U.AC.JP	Tel: 052-789-2917	Fax: 059-789-2919
  Medium: 4GBDAT

Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS                      
  Title: MEASUREMENT OF TEMPERATURE GRADIENT IN DISTANT CLUSTER OF GALAXIES CL0016+16 AND APPLICATION FOR H0 DERIVATION


Abstract:
 We propose re-observation of the distant cluster of galaxies, Cl0016+16 which
 observed Sunyaev-Zel'dvich. From the results of the previous observation, this
 cluster may be show the presence of temperature drop in the envelope of the cluster.
 The error of the Gas density profile is very large due to poor statistics in the
 envelope. This cause large uncertainty for the measurement of the Hubble constant.
 In the previous observation, Fe-K emission line couldn't be detected clearly and
 only the upper limit of the iron abundance was obtained. If Fe-K line could be
 detected with highly confidence, it give us many information for chemical evolution
 because of that distance. Then the re-observation of Cl0016+16 is important for cosmology and chemical evolution of cluster of galaxies.

 Co-Is:
   1  YUZURU TAWARA       	NAGOYA UNIVERSITY             JAPAN     
      (No Co-I contact data)
   2  KOUJUN YAMASHITA    	NAGOYA UNIVERSITY             JAPAN     


Target Name           PRI RA        Dec        Time TC  Off GIS SIS_Cts  Obs
-------------------   --- --------  --------   ---- --  --- --- -------  ---
CL0016+16              2    4.6387   16.4433    60   N   Y   P  0.05000   1