A Study of Faint Red Stars at High Galactic Latitude

by Andrew C. Phillips


Photographic photometry was performed in BVRI on a small field surrounding the galaxy M101, with the goal of determining space distributions of red dwarfs. The plates were scanned using the Automated Plate Scanner. Difficulties with the color transformations to Johnson BVRI precluded studying stars redder that (B-I) = 4.0. For the remaining sample, absolute magnitudes were inferred from the (B-I) color index and used to derive distances. These results and differential star counts are compared to the disk/spheroid model of Bachall and Soniera. Finally, suggestions are offered for future work.