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Molecular line search toward the flaring 6.7-GHz methanol masers of G24.33+0.13 and G359.62–0.24: rare maser transitions detected
Citation
McCarthy, TP and Orosz, G and Ellingsen, SP and Breen, SL and Voronkov, MA and Burns, RA and Olech, M and Yonekura, Y and Hirota, T and Hyland, LJ and Wolak, P, Molecular line search toward the flaring 6.7-GHz methanol masers of G24.33+0.13 and G359.62-0.24: rare maser transitions detected, MNRAS pp. 1-15. (2021) [Refereed Article]
 | PDF (ArXiv version of paper accepted into MNRAS.) 385Kb |
Copyright Statement
Copyright the authors. Released under a Creative Commons Attribution 4.0 International (CC BY 4.0) license (https://creativecommons.org/licenses/by/4.0/)
DOI: doi:10.48550/arXiv.2110.09669
Abstract
We have performed a molecular line search toward the flaring 6.7-GHz masers G24.33+0.13 and G359.62-0.24 using the Australia Telescope Compact Array. We present spectra of the 6.7-GHz class~II methanol and 22.2-GHz water masers toward these sources and provide comparison with other recent flaring events these sources have experienced. We also detect the fourth example of a 23.4-GHz class~I methanol maser, and the eleventh example of a 4.8-GHz formaldehyde maser toward G24.33+0.13. Alongside these results, we observe the previously detected ammonia (3,3) emission and report upper limits on the presence of various other cm-wavelength methanol, ammonia and OH transitions. Our results are consistent with the flaring of G24.33+0.13 being driven by a variable accretion rate in the host high-mass young stellar object.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | maser flare, star-formation, masers |
| Research Division: | Physical Sciences |
| Research Group: | Astronomical sciences |
| Research Field: | Galactic astronomy |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the physical sciences |
| UTAS Author: | McCarthy, TP (Dr Tiege McCarthy) |
| UTAS Author: | Orosz, G (Mr Gabor Orosz) |
| UTAS Author: | Ellingsen, SP (Professor Simon Ellingsen) |
| UTAS Author: | Hyland, LJ (Mr Lucas Hyland) |
| ID Code: | 147952 |
| Year Published: | 2021 |
| Deposited By: | Physics |
| Deposited On: | 2021-11-25 |
| Last Modified: | 2022-05-26 |
| Downloads: | 3 View Download Statistics |
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