Proven-Adzri, E, MacLeod, GC, van den Heever, SP et al. (3 more authors) (2019) Discovery of periodic methanol masers associated with G323.46-0.08. Monthly Notices of the Royal Astronomical Society, 487 (2). pp. 2407-2411. ISSN 1365-2966
Abstract
The 6.7 GHz methanol masers associated with G323.46−0.08 have undergone significant change since their discovery in 1992. After 2009 April, new features with a peak flux density of ∼500 Jy in the velocity channel v = −68.35 km s−1, in the velocity range from −71 to −68.5 km s−1 were detected. It is suggestive that it experienced an accretion event similar to that reported in S255-NIRS3 and NGC 6334I. Evidence of periodicity is found in all of the associated methanol masers with a period of ∼93.5 d. It is not possible to determine if this source was periodic before 2017. However, all the 6.7 GHz methanol masers are probably amplifying a common background periodic radio source.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2019. Published by Oxford University Press on behalf of The Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | masers; stars: formation; stars: protostars; ISM: individual objects: G323.46-0.08; ISM: molecules; radio lines: ISM |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Astrophysics (Leeds) |
Funding Information: | Funder Grant number Royal Society AA130010 |
Depositing User: | Symplectic Publications |
Date Deposited: | 29 Aug 2019 12:22 |
Last Modified: | 29 Aug 2019 12:22 |
Status: | Published |
Publisher: | Oxford University Press |
Identification Number: | 10.1093/mnras/stz1458 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:150176 |