A census of AGB stars in local group galaxies. I. Photometry of a field in M 31
- Author(s)
- Walter Nowotny-Schipper, Franz Kerschbaum, H E Schwarz, Hans Olofsson
- Abstract
We present four colour CCD photometry of a field in M 31. Observations were carried out in two broad band filters (V and i) and two special narrow band "Wing" filters centered on a TiO and a CN molecular band. Colour-magnitude diagrams constructed from broad band photometry show the sequence of RGB/AGB stars. Three known Cepheid variables could be identified on our frames. We used colour-colour diagrams to identify the M- and C-type AGB stars and to investigate e.g. the luminosity function of the AGB population. We found 61 new extragalactic C-stars in this field of M 31.
- Organisation(s)
- Department of Astrophysics, Department of Communication
- External organisation(s)
- Nordic Optical Telescope, Stockholm Observatory
- Journal
- Astronomy & Astrophysics
- Volume
- 367
- Pages
- 557-565
- No. of pages
- 9
- ISSN
- 0004-6361
- Publication date
- 2001
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103003 Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/a-census-of-agb-stars-in-local-group-galaxies-i-photometry-of-a-field-in-m-31(4fe4cd2e-6300-4480-9565-39f1cb3a98d2).html