Search for variables in six Galactic open clusters

J 2017

Search for variables in six Galactic open clusters

PAUNZEN, Ernst, Gerald HANDLER, Monika LENDL, Bernhard BAUMANN, Christian RAB et. al.

Basic information

Original name

Search for variables in six Galactic open clusters

Authors

PAUNZEN, Ernst (40 Austria, guarantor, belonging to the institution), Gerald HANDLER (40 Austria), Monika LENDL (40 Austria), Bernhard BAUMANN (40 Austria), Christian RAB (40 Austria), Stefan MEINGAST (40 Austria), Monika RODE-PAUNZEN (40 Austria), Martin NETOPIL (40 Austria, belonging to the institution), Victoria ANTOCI (40 Austria), Liying ZHU (156 China), Miloslav ZEJDA (203 Czech Republic, belonging to the institution) and Hrvoje BOZIC (191 Croatia)

Edition

New Astronomy, AMSTERDAM, Elsevier Science, 2017, 1384-1076

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.920

RIV identification code

RIV/00216224:14310/17:00094648

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.newast.2016.10.012

UT WoS

000390514400015

Keywords in English

Stars: variables: general; Open clusters and associations: general

Abstract

V originále

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.

Links

GP14-26115P, research and development project

Name: Vstříc k jednotné škále metalicity pro otevřené hvězdokupy

Investor: Czech Science Foundation

Citovat

PAUNZEN, Ernst, Gerald HANDLER, Monika LENDL, Bernhard BAUMANN, Christian RAB, Stefan MEINGAST, Monika RODE-PAUNZEN, Martin NETOPIL, Victoria ANTOCI, Liying ZHU, Miloslav ZEJDA and Hrvoje BOZIC. Search for variables in six Galactic open clusters. New Astronomy. AMSTERDAM: Elsevier Science, 2017, vol. 52, April, p. 133-139. ISSN 1384-1076. Available from: https://dx.doi.org/10.1016/j.newast.2016.10.012.

@article{1373413,
   author = {Paunzen, Ernst and Handler, Gerald and Lendl, Monika and Baumann, Bernhard and Rab, Christian and Meingast, Stefan and RodeandPaunzen, Monika and Netopil, Martin and Antoci, Victoria and Zhu, Liying and Zejda, Miloslav and Bozic, Hrvoje},
   article_location = {AMSTERDAM},
   article_number = {April},
   doi = {http://dx.doi.org/10.1016/j.newast.2016.10.012},
   keywords = {Stars: variables: general; Open clusters and associations: general},
   language = {eng},
   issn = {1384-1076},
   journal = {New Astronomy},
   title = {Search for variables in six Galactic open clusters},
   volume = {52},
   year = {2017}
}

TY  - JOUR
ID  - 1373413
AU  - Paunzen, Ernst - Handler, Gerald - Lendl, Monika - Baumann, Bernhard - Rab, Christian - Meingast, Stefan - Rode-Paunzen, Monika - Netopil, Martin - Antoci, Victoria - Zhu, Liying - Zejda, Miloslav - Bozic, Hrvoje
PY  - 2017
TI  - Search for variables in six Galactic open clusters
JF  - New Astronomy
VL  - 52
IS  - April
SP  - 133-139
EP  - 133-139
PB  - Elsevier Science
SN  - 13841076
KW  - Stars: variables: general
KW  - Open clusters and associations: general
N2  - 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.
ER  -

PAUNZEN, Ernst, Gerald HANDLER, Monika LENDL, Bernhard BAUMANN, Christian RAB, Stefan MEINGAST, Monika RODE-PAUNZEN, Martin NETOPIL, Victoria ANTOCI, Liying ZHU, Miloslav ZEJDA and Hrvoje BOZIC. Search for variables in six Galactic open clusters. \textit{New Astronomy}. AMSTERDAM: Elsevier Science, 2017, vol.~52, April, p.~133-139. ISSN~1384-1076. Available from: https://dx.doi.org/10.1016/j.newast.2016.10.012.

Detailed Information on Publication Record