From John.Hutchings@hia.nrc.ca Tue Jul 13 13:25:39 1999 Received: from dns.dao.nrc.ca (dns.dao.nrc.ca [204.174.103.34]) by uwila.cfht.hawaii.edu (8.8.8/8.8.8) with ESMTP id NAA20531 for ; Tue, 13 Jul 1999 13:25:37 -1000 (HST) Received: from songish.dao.nrc.ca (songish [204.174.103.52]) by dns.dao.nrc.ca (8.8.6/8.8.6/haida.mc Revision: 1.36) with ESMTP id QAA02952 for ; Tue, 13 Jul 1999 16:25:36 -0700 (PDT) From: John Hutchings Received: (from hutchngs@localhost) by songish.dao.nrc.ca (8.8.6/8.8.6/dao-client.mc Revision: 1.12) id QAA22491 for fahlman@cfht.hawaii.edu; Tue, 13 Jul 1999 16:25:35 -0700 (PDT) Date: Tue, 13 Jul 1999 16:25:35 -0700 (PDT) Message-Id: <199907132325.QAA22491@songish.dao.nrc.ca> To: fahlman@cfht.hawaii.edu Subject: not sure if I passed this on Content-Length: 1363 X-Lines: 26 Status: RO Greg: this came via Demers from Sidney, who hadnt read the memo clearly. Maybe I already sent it to you - cant remember. John Dear Serge, I read with great interest the CFHT proposal to undertake a few large surveys with Megacam. It seems to me that it would be of great interest to undertake a rather shallow multi-color survey of fields surrounding all intermediate and high- lattitude globular clusters that are far enough north to be observble from CFHT. In the case of globulars at small and intermediate Glacatocentric distances such a survey might provide information on tidal tails,which would tell us about the globular cluster orbits and the structure of the Galactic halo. In the case of the globular clustrs at large Galactocentric distances such a survey might enable us to identify the remnants of the super-associations in which these globulars were formed in. The fact that about one third of all known "young" Galactic globulars are associated with dwarf spheroidals also suggests that it might be worth-while to search for very dim,so far undiscovered,dwarf spheroidals around the remaining "young" Galactic globular clusters. I would be quite interested in planning such a program,but lack the computer skills to myself be directly involved with the data reduction. Best regards and best wishes. Sidney vandenbergh@dao.nrc.ca