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

Csengeri, T and Bontemps, S and Wyrowski, F and Menten, KM and Leurini, S and Urquhart, JS and Motte, F and Schuller, F and Testi, L and Bronfman, L and Beuther, H and Longmore, SN and Commercon, B and Henning, T and Palau, A and Tan, JC and Fuller, G and Peretto, N and Duarte-Cabral, A and Traficante, A (2016) The first Galaxy scale hunt for the youngest high-mass protostars. EAS Publications Series: Conditions and Impact of Star Formation, 75-76. pp. 255-258. ISSN 1638-1963

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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.

Item Type: Article
Uncontrolled Keywords: astro-ph.GA; astro-ph.GA; astro-ph.SR
Subjects: Q Science > QB Astronomy
Divisions: Astrophysics Research Institute
Publisher: EDP Sciences
Related URLs:
Date Deposited: 05 Jan 2016 09:33
Last Modified: 26 May 2016 10:24
URI: http://researchonline.ljmu.ac.uk/id/eprint/2509

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