A census of AGB stars in local group galaxies. I. Photometry of a field in M 31

Autor(en)

Walter Nowotny-Schipper, Franz Kerschbaum, H E Schwarz, Hans Olofsson

Abstrakt

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(en)

Institut für Astrophysik, Institut für Publizistik- und Kommunikationswissenschaft

Externe Organisation(en)

Nordic Optical Telescope, Stockholm Observatory

Journal

Astronomy & Astrophysics

Band

367

Seiten

557-565

Anzahl der Seiten

9

ISSN

0004-6361

Publikationsdatum

2001

Peer-reviewed

Ja

ÖFOS 2012

103003 Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a-census-of-agb-stars-in-local-group-galaxies-i-photometry-of-a-field-in-m-31(4fe4cd2e-6300-4480-9565-39f1cb3a98d2).html