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- Title
THE FIRST GALAXY SCALE HUNT FOR THE YOUNGEST HIGH-MASS PROTOSTARS.
- Authors
Csengeri, T.; Bontemps, S.; Wyrowski, F.; Menten, K. M.; Leurini, S.; Urquhart, J. S.; Motte, F.; Schuller, F.; Testi, L.; Bronfman, L.; Beuther, H.; Longmore, S.; Commerçon, B.; Henning, Th.; Palau, A.; Tan, J. C.; Fuller, G.; Peretto, N.; Duarte-Cabral, A.; Traficante, A.
- Abstract
The origin of massive stars is a fundamental open issue in modern astrophysics. Pre-ALMA interferometric studies reveal precursors to early B to late O type stars with collapsing envelopes of 15-20M on 1000-3000AU size-scales. To search for more massive envelopes we selected the most massive nearby young clumps from the ATLASGAL survey to study their protostellar content with ALMA. Our first results using the intermediate scales revealed by the ALMA ACA array providing 3-5" angular resolution, corresponding to ~0.05- 0.1 pc size-scales, reveals a sample of compact objects. These massive, dense cores are on average two-times more massive than previous studies of similar types of objects. We expect that once the full survey is completed, it will provide a comprehensive view on the origin of the most massive stars.
- Subjects
PROTOSTARS; SUPERGIANT stars; ATACAMA Large Millimeter Array (Project); INTERFEROMETRY; GRAVITATIONAL collapse; DENSITY of stars
- Publication
EAS Publications Series, 2015, Vol 75/76, p255
- ISSN
1633-4760
- Publication type
Article
- DOI
10.1051/eas/1575050