Properties of Nearby Dwarf Galaxy Candidates from an MDM/Keck Imaging Survey

Details Properties of Nearby Dwarf Galaxy Candidates from an MDM/Keck Imaging Survey Properties of Nearby Dwarf Galaxy Candidates from an MDM/Keck Imaging Survey

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.0803g&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #08.03; Bulletin of the American Astronomical Society, Vol. 30, p.1258

Astronomy and Astrophysics

Astronomy

Scientific paper

We are carrying out an imaging survey of the list of 260 nearby dwarf galaxy candidates from Karachentseva & Karachentsev (1998) with the 2.4-m Hiltner telescope at the MDM Observatory. Galaxies close enough to be resolved into individual stars are subsequently studied with the Low-Resolution Imaging Spectrograph (LRIS) on the 10-m Keck II telescope. A detailed study of the most promising nearby candidates is presented. Preliminary analysis of the data yields estimates of: (1) the central surface brightness, (2) total magnitude, (3) the distance based on the tip of the red giant branch discontinuity in the I-band stellar luminosity function, and (4) the metallicity based on comparison of the shape of the red giant branch in the V-I vs I color-magnitude diagram with globular cluster fiducials.

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