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P. Seitzer (U Mich), E.K. Grebel (U Wash/MPIA), A.E. Dolphin (NOAO), D. Geisler (U Concepción), P. Guhathakurta (UCSC), P.W. Hodge (U Wash), I.D. Karachentsev (SAO), V.E. Karachentseva (U Kiev), A. Sarajedini (Wesleyan U)
We give a summary of the current status of our Hubble Space Telescope (HST) Snapshot Survey of probable nearby dwarf galaxies. The purpose of this ongoing survey is to fill in the nearby galaxy census and to derive basic properties of galaxies which are suspected to be nearby on the basis of previous groundbased exploratory studies. The survey has been approved for 75 orbits in cycle 8, and 125 orbits in cycle 9. Within each orbit we obtain 600 second exposures in F606W and F814W of one nearby galaxy candidate using WFPC2. The resulting color-magnitude diagram can be used to determine the general characteristics of the stellar population, as well as the distance to a galaxy with an old stellar population using the TRGB method. Data for selected galaxies will be presented, as well as the summary of all galaxies observed to date. Of the 37 galaxies observed to date, almost all of them turn out to be nearby (within 4 Mpc) dwarf galaxies.
Support for this work is provided by NASA through grant GO-8192.97A from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy.
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The author(s) of this abstract have provided an email address for comments about the abstract: seitzer@astro.lsa.umich.edu