publication . Preprint . Article . 1999

A Survey for Low Surface Brightness Galaxies Around M31. II. The Newly Discovered Dwarf Andromeda VI

Taft E. Armandroff; George H. Jacoby; James E. Davies;
Open Access English
  • Published: 18 May 1999
Abstract
We present B-, V-, and I-band images, as well as an H alpha image, of And VI. This is the second newly identified dwarf spheroidal (dSph) companion to M31 found using a digital filtering technique applied to the second Palomar Sky Survey for which 1550 square degrees now have been surveyed. And VI was confirmed to be a nearby dSph galaxy when it resolved into stars easily with a short 4-m V-band exposure. Sub-arcsec images taken at the Kitt Peak WIYN 3.5-m telescope provided (I,V-I) and (V,B-V) color-magnitude diagrams that yield a distance of 775 +/- 35 kpc using the tip of the red giant branch method, and a mean metallicity of [Fe/H] = -1.58 +/- 0.20 with a di...
Subjects
free text keywords: Astrophysics, Space and Planetary Science, Astronomy and Astrophysics, Surface brightness, Local Group, Luminosity function, Andromeda, Astronomy, Luminosity, Metallicity, Physics, Galaxy, Red-giant branch
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publication . Preprint . Article . 1999

A Survey for Low Surface Brightness Galaxies Around M31. II. The Newly Discovered Dwarf Andromeda VI

Taft E. Armandroff; George H. Jacoby; James E. Davies;