Volume 367, Number 2, February IV 2001
|Page(s)||557 - 565|
|Section||Interstellar and circumstellar matter|
|Published online||15 February 2001|
A census of AGB stars in Local Group galaxies*
I. Photometry of a field in M 31
Institut für Astronomie der Universität Wien, Türkenschanzstraße 17, 1180 Wien, Austria
2 Stockholms Observatorium, 13336 Saltsjöbaden, Sweden
3 Nordic Optical Telescope, Apartado 474, 38700 Sta Cruz de La Palma, Canarias, Spain
Corresponding author: W. Nowotny, firstname.lastname@example.org
Accepted: 5 December 2000
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.
Key words: stars: asymptotic giant branch (AGB) / stars: carbon / galaxies: individual: M 31 / galaxies: stellar content / techniques: photometric / surveys
© ESO, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.