Confirmation of the exclusive association between 6.7-GHz methanol masers and high-mass star formation regions

被引：112

作者：

Breen, S. L. ^{[1
]}

Ellingsen, S. P. ^{[2
]}

Contreras, Y. ^{[1
]}

Green, J. A. ^{[1
]}

Caswell, J. L. ^{[1
]}

Stevens, J. B. ^{[3
]}

Dawson, J. R. ^{[2
]}

Voronkov, M. A. ^{[1
]}

机构：

[1] CSIRO Astron & Space Sci, Australia Telescope Natl Facil, Epping, NSW 1710, Australia

[2] Univ Tasmania, Sch Math & Phys, Hobart, Tas 7001, Australia

[3] CSIRO Astron & Space Sci, Australia Telescope Natl Facil, Narrabri, NSW 2390, Australia

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2013年 / 435卷 / 01期

基金：

美国国家航空航天局;

关键词：

masers; stars: formation; ISM: molecules; SPECTRAL ENERGY-DISTRIBUTIONS; YOUNG STELLAR OBJECTS; H-II REGIONS; FOLLOW-UP CATALOG; 1612 MHZ SURVEY; GALACTIC PLANE; FORMING REGIONS; MOLECULAR CLOUDS; HIGH-RESOLUTION; SUBMILLIMETER OBSERVATIONS;

D O I：

10.1093/mnras/stt1315

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently, a comparison between the locations of 6.7-GHz methanol masers and dust continuum emission has renewed speculation that these masers can be associated with evolved stars. The implication of such a scenario would be profound, especially for the interpretation of large surveys for 6.7-GHz masers, individual studies where high-mass star formation has been inferred from the presence of 6.7-GHz methanol masers and for the pumping mechanisms of these masers. We have investigated the two instances where 6.7-GHz methanol masers have been explicitly suggested to be associated with evolved stars, and we find the first to be associated with a standard high-mass star formation region, and the second to be a spurious detection. We also find no evidence to suggest that the methanol maser action can be supported in the environments of evolved stars. We thereby confirm their exclusive association with high-mass star formation regions.

引用

页码：524 / 530

页数：7

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