Beccari, G, Boffin, HMJ, Jerabkova, T, Wright, NJ, Kalari, VM, Carraro, G, De Marchi, G and de Wit, W-J (2018) A sextet of clusters in the Vela OB2 region revealed by Gaia. Monthly Notices of the Royal Astronomical Society: Letters, 481 (1). ISSN 1365-2966

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Using Gaia DR2 data, combined with OmegaCAM ground-based optical photometry from the AD-HOC survey, and detailed Radial Velocity measurements from ESO-Gaia, we analyse in detail a 10 ×5 deg region around the Wolf-Rayet star γ2 Vel, including the previously known clusters Gamma Vel and NGC2547. Using clustering analysis that considers positions, proper motions and parallax, we discover 6 clusters or associations – 4 of which appear new. Analysis of the colour-magnitude diagram for these clusters show that 4 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.

Item Type: Article
Additional Information: This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society: Letters © 2018 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Uncontrolled Keywords: stars, formation, pre-main sequence, open clusters and associations
Subjects: Q Science > QB Astronomy > QB460 Astrophysics
Q Science > QB Astronomy > QB799 Stars
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Depositing User: Symplectic
Date Deposited: 10 Aug 2018 13:15
Last Modified: 14 Dec 2018 14:19

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