A sextet of clusters in the Vela OB2 region revealed by Gaia

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10389087" target="_blank" >RIV/00216208:11320/18:10389087 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1093/mnrasl/sly144" target="_blank" >https://doi.org/10.1093/mnrasl/sly144</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnrasl/sly144" target="_blank" >10.1093/mnrasl/sly144</a>

Result language
angličtina
Original language name
A sextet of clusters in the Vela OB2 region revealed by Gaia
Original language description
Using Gaia DR2 data, combined with OmegaCAM ground-based optical photometry from the Accretion Disc with OmegaCAM survey, and detailed radial velocity measurements from ESO-Gaia, we analyse in detail a 10 x 5 deg region around the Wolf-Rayet Star gamma(2) Vel, including the previously known clusters Gamma Vel and NGC2547. Using clustering analysis that considers positions, proper motions, and parallax, we discover six clusters or associations - four of which appear new. Analysis of the colour-magnitude diagram for these clusters shows that four of them formed coevally from the same molecular clouds 10 Myr ago, while NGC 2547 formed together with a newly discovered cluster 30 Myr ago. This study shows the incredible wealth of data provided by Gaia for the study of young stellar clusters.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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