Search for variables in six Galactic open clusters

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00094648" target="_blank" >RIV/00216224:14310/17:00094648 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.newast.2016.10.012" target="_blank" >http://dx.doi.org/10.1016/j.newast.2016.10.012</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.newast.2016.10.012" target="_blank" >10.1016/j.newast.2016.10.012</a>

Result language
angličtina
Original language name
Search for variables in six Galactic open clusters
Original language description
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 beta 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. (C) 2016 Elsevier B.V. All rights reserved.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
<a href="/en/project/GP14-26115P" target="_blank" >GP14-26115P: Towards a uniform metallicity scale for open clusters</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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