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

Simon, R., Csengeri, T., Bontemps, S., Wyrowski, F., Menten, K.M., Leurini, S., Urquhart, J.S., Motte, F., Schuller, F., Testi, L., and others. (2016) The first Galaxy scale hunt for the youngest high-mass protostars. EAS Publications Series, 75-76 . pp. 255-258. ISSN 1633-4760. E-ISSN 1638-1963. (doi:10.1051/eas/1575050) (KAR id:59983)

PDF (ArXiv : 1512.04522v1 [astro-ph.GA] 13 Dec 2015) Author's Accepted Manuscript
Language: English

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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? 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 ?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
DOI/Identification number: 10.1051/eas/1575050
Divisions: Faculties > Sciences > School of Physical Sciences
Depositing User: James Urquhart
Date Deposited: 20 Jan 2017 16:22 UTC
Last Modified: 29 May 2019 18:34 UTC
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