The Araucaria Project: A Wide-Field Photometric Survey for Cepheid Variables in NGC 3109
We have obtained mosaic images of NGC 3109 in the V and I bands on 74 nights, spanning approximately 1 yr. From these data, we have conducted an extensive search for Cepheid variables over the entire field of the galaxy, resulting in the discovery of 113 variables with periods ranging from 3.4 to 31.4 days. In this sample, 76 Cepheids, including
Pietrzyński, Grzegorz et al.
Fecha de publicación:
9
2006