Skip to main content

Methanol maser associated outflows: Detection statistics and properties

de Villiers, H.M., Chrysostomou, A., Thompson, M.A., Ellingsen, S.P., Urquhart, J.S., Breen, S.L., Burton, M.G., Csengeri, T., Ward-Thompson, D. (2014) Methanol maser associated outflows: Detection statistics and properties. Monthly Notices of the Royal Astronomical Society, 444 (1). pp. 566-585. ISSN 0035-8711. (doi:10.1093/mnras/stu1474) (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)

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://www.dx.doi.org/10.1093/mnras/stu1474

Abstract

We have selected the positions of 54 6.7 GHz methanol masers from the Methanol Multibeam Survey catalogue, covering a range of longitudes between 20° and 34° of the Galactic plane. These positions were mapped in the J = 3-2 transition of both the 13CO and C18O lines. A total of 58 13COemission peaks are found in the vicinity of thesemaser positions.We search for outflows around all 13CO peaks, and find evidence for high-velocity gas in all cases, spatially resolving the red and blue outflow lobes in 55 cases. Of these sources, 44 have resolved kinematic distances, and are closely associated with the 6.7 GHz masers, a subset referred to as Methanol Maser Associated Outflows (MMAOs). We calculate the masses of the clumps associated with each peak using 870 μm continuum emission from the ATLASGAL survey. A strong correlation is seen between the clump mass and both outflow mass and mechanical force, lending support to models in which accretion is strongly linked to outflow. We find that the scaling law between outflow activity and clump masses observed for low-mass objects, is also followed by the MMAOs in this study, indicating a commonality in the formation processes of low-mass and high-mass stars. © 2014 The Authors.

Item Type: Article
DOI/Identification number: 10.1093/mnras/stu1474
Uncontrolled keywords: ISM: jets and outflows, Line: profiles, Masers, Stars: formation, Stars: massive, submillimetre: stars
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: 24 Nov 2015 12:13 UTC
Last Modified: 29 May 2019 16:28 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/52190 (The current URI for this page, for reference purposes)
Urquhart, J.S.: https://orcid.org/0000-0002-1605-8050
  • Depositors only (login required):