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A Search for High-Mass Stars Forming in Isolation using CORNISH and ATLASGAL

Tremblay, C.D., Walsh, A.J., Longmore, S.N., Urquhart, J.S., König, C. (2015) A Search for High-Mass Stars Forming in Isolation using CORNISH and ATLASGAL. Publications of the Astronomical Society of Australia, 32 . ISSN 1323-3580. (doi:10.1017/pasa.2015.48) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:55252)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1017/pasa.2015.48

Abstract

Theoretical models of high-mass star formation lie between two extreme scenarios. At one extreme, all the mass comes from an initially gravitationally bound core. At the other extreme, the majority of the mass comes from cluster scale gas, which lies far outside the initial core boundary. One way to unambiguously show high-mass stars can assemble their gas through the former route would be to find a high-mass star forming in isolation. Making use of recently available CORNISH and ATLASGAL Galactic plane survey data, we develop sample selection criteria to try and find such an object. From an initial list of approximately 200 sources, we identify the high-mass star-forming region G13.384 + 0.064 as the most promising candidate. The region contains a strong radio continuum source, that is powered by an early B-type star. The bolometric luminosity, derived from infrared measurements, is consistent with this. However, sub-millimetre continuum emission, measured in ATLASGAL, as well as dense gas tracers, such as HCO+(3–2) and N2H+(3–2) indicate that there is less than ~ 100 M? of material surrounding this star. We conclude that this region is indeed a promising candidate for a high-mass star forming in isolation.

Item Type: Article
DOI/Identification number: 10.1017/pasa.2015.48
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Publ. Astron. Soc. Aust. [Field not mapped to EPrints] AD - International Centre for Radio Astronomy Research, Curtin University, GPO Box U1987, Perth WA 6845, Australia [Field not mapped to EPrints] AD - Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD, UK [Field not mapped to EPrints] AD - Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, Germany [Field not mapped to EPrints] AD - Centre for Astrophysics and Planetary Science, University of Kent, Canterbury, CT2 7NH, UK [Field not mapped to EPrints] M3 - Article in Press [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: (ISM): HII regions, stars: formation, stars: massive
Subjects: Q Science > QB Astronomy > QB460 Astrophysics
Divisions: Faculties > Sciences > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User: James Urquhart
Date Deposited: 04 May 2016 15:34 UTC
Last Modified: 29 May 2019 17:17 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/55252 (The current URI for this page, for reference purposes)
Urquhart, J.S.: https://orcid.org/0000-0002-1605-8050
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