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Detection of HC3N maser emission in NGC 253
Citation
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]
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Copyright Statement
Copyright 2017 The American Astronomical Society
DOI: doi:10.3847/2041-8213/aa71a6
Abstract
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 |
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