| Issue |
A&A
Volume 367, Number 3, March I 2001
|
|
|---|---|---|
| Page(s) | 759 - 769 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361:20000235 | |
| Published online | 15 March 2001 | |
Variable stars in nearby galaxies *,**
IV. Fields C and D of IC 1613
Osservatorio Astronomico di Brera, Via E. Bianchi 46, 23807 Merate, Italy
Corresponding author: L. Mantegazza, luciano@merate.mi.astro.it
Received:
23
October
2000
Accepted:
9
November
2000
The nearby galaxies IC 1613 and NGC 6822 were observed over four years
to detect short period Cepheids and to obtain good light curves for
Fourier decomposition. The program was carried out with a relatively
small telescope, the Dutch 0.9 m at ESO-La Silla, and the observations were
performed without filter (white light), or Wh-band. In this paper we
present the results of the observations of Fields C and D in IC 1613 
each). The analysis of the light curves of 3297 stars
in the two fields has allowed the detection of 92 variable stars.
A total of 34 Population I Cepheids have been found, while only 7 of
these objects were previously known in these fields. Most
of the stars have short periods and
some of them are first overtone mode pulsators. Among the other variable
stars there are one eclipsing binary and five W Vir candidates. A nova event
was observed in Field D.
Key words: stars: oscillations; Cepheids; novae / stars: variables: general / galaxies: individual: IC 1613 / galaxies: stellar content
© 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.