Canis Major OB1 stellar group contents revealed by Gaia
| Autor: | Beatriz L. Fernandes, Jane Gregorio-Hetem, C. E. Barbosa, Thierry Montmerle, F. Almeida-Fernandes, Antonio Kanaan, C. Mendes de Oliveira, Wilton S. Dias, Hélio D. Perottoni, Hektor Monteiro, C. Bonatto, Phillip A. B. Galli, M. Borges Fernandes, Vera Jatenco-Pereira, T. Santos-Silva, Eduardo Luiz Damiani Bica, T. P. Ribeiro, William Schoenell |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Canis Astrophysics - Solar and Stellar Astrophysics biology Space and Planetary Science Group (periodic table) Astrophysics of Galaxies (astro-ph.GA) FOS: Physical sciences Zoology Astronomy and Astrophysics biology.organism_classification Astrophysics - Astrophysics of Galaxies Solar and Stellar Astrophysics (astro-ph.SR) |
| Zdroj: | Monthly Notices of the Royal Astronomical Society. 508:1033-1055 |
| ISSN: | 1365-2966 0035-8711 |
| Popis: | Canis Major OB1 (CMa OB1) is a Galactic stellar association with a very intriguing star-formation scenario. There are more than two dozen known star clusters in its line of sight, but it is not clear which ones are physically associated with CMa OB1. We use a clustering code that employs 5-dimensional data from the Gaia DR2 catalogue to identify physical groups and obtain their astrometric parameters and, in addition, we use two different isochrone-fitting methods to estimate the ages of these groups. We find 15 stellar groups with distances between 570 pc and 1650 pc, including 10 previously known and 5 new open cluster candidates. Four groups, precisely the youngest ones ($ Comment: 23 pages, 28 figures, 7 tables |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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