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Search for variables in six Galactic open clusters (CROSBI ID 248859)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Paunzen, Ernst ; Handler, Gerald ; Lendl, Monika ; Baumann, Bernhard ; Rab, Christian ; Meingast, Stefan ; Rode-Paunzen, Monika ; Netopil, Martin ; Antoci, Victoria ; Zhu, Liying et al. Search for variables in six Galactic open clusters // New astronomy, 52 (2017), 133-139. doi: 10.1016/j.newast.2016.10.012

Podaci o odgovornosti

Paunzen, Ernst ; Handler, Gerald ; Lendl, Monika ; Baumann, Bernhard ; Rab, Christian ; Meingast, Stefan ; Rode-Paunzen, Monika ; Netopil, Martin ; Antoci, Victoria ; Zhu, Liying ; Zejda, Miloslav ; Božić, Hrvoje

engleski

Search for variables in six Galactic open clusters

Variables in open cluster (known distance, age, and metallicity) fields play an important role in stellar astrophysics because they allow to investigate the interior of stars. Therefore, six Galactic open clusters were selected to search for new variables and to complement data for already known variables. As five of these clusters are younger than 40 Myr, we aim at finding variable high-mass stars such as β Cephei and Slowly Pulsating B-type stars as well as classical pulsating stars within the instability strip. About 26 000 images (312 h) photometric images were taken at the 0.8 m (Vienna, Austria) and 1.0 m (Hvar, Croatia) telescope using V and I filters. The differential light curves were analyzed with standard time series analysis methods. In total, 11 variables were found in all investigated clusters. For nine of them, we were able to determine their nature and period. In addition, the membership probabilities from the literature were analyzed.

Stars: variables: general, Open clusters and associations: individual: ASCC 130, Open clusters and associations: individual: Berkeley 4, Open clusters and associations: individual: NGC 1893, Open clusters and associations: individual: NGC 2244, Open clusters and associations: individual: NGC 6830, Open clusters and associations: individual: NGC 7296

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Podaci o izdanju

52

2017.

133-139

objavljeno

1384-1076

1384-1092

10.1016/j.newast.2016.10.012

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