The first Galaxy scale hunt for the youngest high-mass protostars

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 15-20 M$_\odot$ on 1000-3000 AU 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 $\sim$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.
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Communication dans un congrès
proceedings of The 6th Zermatt ISM Symposium: Conditions and Impact of Star Formation, held in Zermatt Switzerlant, 2015, september 7-11, Edited by R. Simon, R. Schaaf and J. Stutzki. EAS Publications Series, Volume 75-76, 2016, pp.255-258 , Sep 2015, Zermatt Switzerland. 2016, 〈10.1051/eas/1575050〉
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https://hal.archives-ouvertes.fr/hal-01245328
Contributeur : Marie-Paule Pomies <>
Soumis le : jeudi 17 décembre 2015 - 09:08:18
Dernière modification le : samedi 7 octobre 2017 - 14:30:02

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T., Csengeri, S. Bontemps, F., Wyrowski, K. M., Menten, S., Leurini, et al.. The first Galaxy scale hunt for the youngest high-mass protostars. proceedings of The 6th Zermatt ISM Symposium: Conditions and Impact of Star Formation, held in Zermatt Switzerlant, 2015, september 7-11, Edited by R. Simon, R. Schaaf and J. Stutzki. EAS Publications Series, Volume 75-76, 2016, pp.255-258 , Sep 2015, Zermatt Switzerland. 2016, 〈10.1051/eas/1575050〉. 〈hal-01245328〉

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