eCite Digital Repository

Detection of HC3N maser emission in NGC 253


Ellingsen, SP and Chen, X and Breen, SL and Qiao, H-h, Detection of HC3N maser emission in NGC 253, Astrophysical Journal Letters, 841, (1) Article L14. ISSN 2041-8205 (2017) [Refereed Article]


Copyright Statement

Copyright 2017 The American Astronomical Society

DOI: doi:10.3847/2041-8213/aa71a6


We report the detection of maser emission from the J = 4-3 transition of HC3N at 36.4 GHz toward the nearby starburst galaxy NGC 253. This is the first detection of maser emission from this transition in either a Galactic or extragalactic source. The HC3N maser emission has a brightness temperature in excess of 2500 K and is offset from the center of the galaxy by approximately 18'' (300 pc), but close to a previously reported class I methanol maser. Both the HC3N and methanol masers appear to arise near the interface between the galactic bar and the central molecular zone, where it is thought that molecular gas is being transported inwards, producing a region of extensive low-velocity shocks.

Item Details

Item Type:Refereed Article
Keywords:galaxies: individual (NGC 253), galaxies: starburst, masers, radio lines: ISM
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Cosmology and extragalactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Ellingsen, SP (Professor Simon Ellingsen)
ID Code:116819
Year Published:2017
Web of Science® Times Cited:5
Deposited By:Mathematics and Physics
Deposited On:2017-05-23
Last Modified:2018-04-27
Downloads:102 View Download Statistics

Repository Staff Only: item control page