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Название: The Physical Parameters of Clumps Associated with Class i Methanol Masers
Авторы: Ladeyschikov, D. A.
Urquhart, J. S.
Sobolev, A. M.
Breen, S. L.
Bayandina, O. S.
Дата публикации: 2020
Издатель: IOP Publishing Ltd
Библиографическое описание: The Physical Parameters of Clumps Associated with Class i Methanol Masers / D. A. Ladeyschikov, J. S. Urquhart, A. M. Sobolev, et al. — DOI 10.3847/1538-3881/abb770 // Astronomical Journal. — 2020. — Vol. 160. — Iss. 5. — 213.
Аннотация: We present a study of the association between class I methanol masers and cold dust clumps from the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) survey. It was found that almost 100% of class I methanol masers are associated with objects listed in the ATLASGAL compact source catalog. We find a statistically significant difference in the flux density, luminosity, number and column density, and temperature distributions of ATLASGAL sources associated with 95/44 GHz methanol masers compared with those ATLASGAL sources devoid of 95 GHz methanol masers. The masers tend to arise in clumps with higher densities, luminosities, and temperatures compared with both the full sample of ATLASGAL clumps, as well as the sample of ATLASGAL sources that were cross-matched with positions previously searched for methanol masers but with no detections. Comparison between the peak position of ATLASGAL clumps and the interferometric positions of the associated class I and II methanol masers reveals that class I masers are generally located at larger physical distances from the peak submillimeter emission than class II masers. We conclude that the tight association between ATLASGAL sources and class I methanol masers may be used as a link toward understanding the conditions of the pumping of these masers and evolutionary stages at which they appear. © 2020. The American Astronomical Society. All rights reserved.
URI: http://hdl.handle.net/10995/103357
Условия доступа: info:eu-repo/semantics/openAccess
Идентификатор SCOPUS: 85094966661
Идентификатор PURE: 20134580
940fd7bf-c627-4b2f-afb8-d60574272fff
ISSN: 46256
DOI: 10.3847/1538-3881/abb770
Располагается в коллекциях:Научные публикации, проиндексированные в SCOPUS и WoS CC

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