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Diagnostics of a Nuclear Starburst: Water and Methanol Masers

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arxiv 1811.07952 v1 pith:BOMCJQJH submitted 2018-11-19 astro-ph.GA

classification astro-ph.GA
keywords masersstarburstclassevidenceobservationsoriginarrayassociated
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abstract

We test models of starburst driven outflows using observations of the 22.2 GHz H$_2$O and 36.2 GHz class I CH$_3$OH 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 H$_2$O masers are associated with forming super star clusters and not with supernova remnants. We detect four new 36 GHz CH$_3$OH masers in the central kpc and show possible evidence for a star-formation origin of two class I CH$_3$OH masers. Such high resolution observations are essential for understanding the origin of these masers.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Properties of $\mathrm{H_2O}$ masers and their associated sources in Sagittarius B2

    astro-ph.GA 2025-06 conditional novelty 6.0 of 10

    A 499-maser VLA census of Sagittarius B2 classifies water masers into outflow, young star, and HII region populations, and finds outflow masers stay within 2000 au of their driving source.

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