Photometric observations of Cepheids from the ASAS-3 catalog: Photoelectric BV Ic observations of 46 low-amplitude Cepheids |
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| Authors: | L. N. Berdnikov A. Yu. Kniazev V. V. Kravtsov E. N. Pastukhova D. G. Turner |
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| Affiliation: | (1) Sternberg Astronomical Institute, Universitetskii pr. 13, Moscow, 119992, Russia;(2) South-African Astronomical Observatory, Capetown, South Africa;(3) Instituto de Astronomía, Universidad Católica del Norte, Antofagasta, Chile;(4) Institute of Astronomy, Russian Academy of Sciences, Pyatnitskaya ul. 48, Moscow, 109017, Russia;(5) Saint Mary’s University, 923 Robie Str., Halifax, Nova Scotia, B3H 3C3, Canada |
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| Abstract: | From December 2006 to January 2008, we performed 1699 BV I c observations for 46 low-amplitude Cepheids discovered in the course of the ASAS project using the 76-cm telescope of the South-African Astronomical Observatory (SAAO). We provide the tables of observations and V light and B-V and V-I c color curves. These new observations, along with data from the ASAS-3 catalog, have been used to improve the elements of the light variations. Our data allow the number of known Galactic low-amplitude Cepheids to be almost doubled. This makes it possible to increase the number of distance indicators suitable for studying the structure of the inner Galactic arms by almost 15%. |
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| Keywords: | Cepheids photometry |
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