Aggregates of clusters in the Gaia data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00121741" target="_blank" >RIV/00216224:14310/21:00121741 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202040139" target="_blank" >https://doi.org/10.1051/0004-6361/202040139</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202040139" target="_blank" >10.1051/0004-6361/202040139</a>
Alternative languages
Result language
angličtina
Original language name
Aggregates of clusters in the Gaia data
Original language description
Context. The precision of the parallax measurements by Gaia is unprecedented. As of Gaia Data Release 2, the number of known nearby open clusters has increased. Some of the clusters appear to be relatively close to each other and form aggregates, which makes them interesting objects to study.Aims. We study the aggregates of clusters which share several of the assigned member stars in relatively narrow volumes of the phase space.Methods. Using the most recent list of open clusters, we compare the cited central parallaxes with the histograms of parallax distributions of cluster aggregates. The aggregates were chosen based on the member stars which are shared by multiple clusters.Results. Many of the clusters in the aggregates have been assigned parallaxes which coincide with the histograms. However, clusters that share a large number of members in a small volume of the phase space display parallax distributions which do not coincide with the values from the literature. This is the result of ignoring a possibility of assigning multiple probabilities to a single star. We propose that this small number of clusters should be analysed anew.
Czech name
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Czech description
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Classification
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)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy and Astrophysics
ISSN
0004-6361
e-ISSN
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Volume of the periodical
649
Issue of the periodical within the volume
May
Country of publishing house
FR - FRANCE
Number of pages
12
Pages from-to
„A54“
UT code for WoS article
000655634500002
EID of the result in the Scopus database
2-s2.0-85105741719