Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-08-03
Astronomy and Astrophysics
Astrophysics
18 pages, 7 figures, 6 tables
Scientific paper
10.1086/301546
We present the latest results of our ongoing four filter photometric survey of C stars in Local Group dwarf irregular galaxies. Observations of the two low luminosity dwarf irregular galaxies, Pegasus and DDO 210, revealed respectively 40 and 3 C stars, assuming that the reddening of Pegasus is negligible. No C stars were identified in Tucana. Our observations permit the estimation of the CMD contamination by foreground M dwarf thus yielding reliable C/M ratios. Our R, I photometry of the C stars cannot be used to solve the extinction controversy toward Pegasus. The three C stars in DDO 210 are quite bright when compared to C star populations in dwarf galaxies. A larger fainter population in that galaxy seems however improbable. The statistics of C stars, currently on hand for dwarf galaxies, show a well-defined trend with the absolute magnitude of galaxies.
Battinelli Paolo
Demers Serge
No associations
LandOfFree
Carbon Star Survey of Local Group Dwarf Galaxies. II. Pegasus, DDO 210 and Tucana does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Carbon Star Survey of Local Group Dwarf Galaxies. II. Pegasus, DDO 210 and Tucana, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon Star Survey of Local Group Dwarf Galaxies. II. Pegasus, DDO 210 and Tucana will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-559887