Variable stars in nearby galaxies. III. White light observations of Field B of IC 1613

Details Variable stars in nearby galaxies. III. White light observations of Field B of IC 1613 Variable stars in nearby galaxies. III. White light observations of Field B of IC 1613

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...363...29a&link_type=abstract

Astronomy and Astrophysics, v.363, p.29-40 (2000)

Astronomy and Astrophysics

Astrophysics

11

Stars: Oscillations, Stars: Variables: Cepheids, Stars: Variables: General, Galaxies: Individual: Ic 1613, Galaxies: Local Group, Galaxies: Stellar Content

Scientific paper

Two 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. Since the program was carried out with a relatively small telescope, the Dutch 0.9 m at ESO-La Silla, the observations were performed without filter (white light), or Wh-band; the advantage of this technique is that the photon statistics correspond to those of V-band observations of similar exposure time obtained with a 2-m class telescope. In this paper we discuss some properties of Wh photometry and present the results of the observations of Field B in IC 1613 (3.8'x3.8'). A total of 65 images were obtained and the reduction was performed with DAOPHOT. The light curves of 4037 stars were measured, and the analysis using various techniques allowed the detection of 121 variable stars. We detected 51 population I Cepheids, while previously only 12 Cepheids were known in the same field. Most of these have short periods and some are first overtone mode pulsators. The other variable stars include one eclipsing binary, two suspected W Vir stars, 57 irregular and semi-regular red variables, 3 periodic red variables and 6 irregular blue variables. Based on observations collected at ESO-La Silla

Affiliated with

Also associated with

No associations

Rating

Variable stars in nearby galaxies. III. White light observations of Field B of IC 1613 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Variable stars in nearby galaxies. III. White light observations of Field B of IC 1613, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable stars in nearby galaxies. III. White light observations of Field B of IC 1613 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1146784