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Diagnostics of a nuclear starburst: water and methanol masers

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Gorski, MD, Ott, J, Rand, R, Meier, DS, Momjian, E, Schinnerer, E and Ellingsen, SP ORCID: 0000-0002-1363-5457 2018 , 'Diagnostics of a nuclear starburst: water and methanol masers' , Monthly Notices of the Royal Astronomical Society, vol. 483, no. 4 , pp. 5434-5443 , doi: 10.1093/mnras/sty3077.

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Abstract

We test models of starburst driven outflows using observations of the 22.2 GHz H2O and 36.2 GHz class I CH3OH maser lines. We have observed the starburst galaxy NGC 253 using the Karl G. Jansky Very Large Array. We present evidence for entrainment of star-forming dense-molecular gas in the outflow of NGC 253. We also show that H2O masers are associated with forming super star clusters and not with supernova remnants. We detect four new 36 GHz CH3OH masers in the central kpc and show possible evidence for a star-formation origin of two class I CH3OH masers. Such high resolution observations are essential for understanding the origin of these masers.

Item Type: Article
Authors/Creators:Gorski, MD and Ott, J and Rand, R and Meier, DS and Momjian, E and Schinnerer, E and Ellingsen, SP
Keywords: masers-galaxies: individual: NGC253-galaxies: nuclei-galaxies: starburst-radio lines: ISM
Journal or Publication Title: Monthly Notices of the Royal Astronomical Society
Publisher: Blackwell Publishing Ltd
ISSN: 0035-8711
DOI / ID Number: 10.1093/mnras/sty3077
Copyright Information:

Copyright 2018 The Authors. This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©:2018. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

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