Class I methanol masers: Masers with EGOs

dc.creatorChen, Xi
dc.creatorEllingsen, Simon
dc.creatorShen, Zhi-Qiang
dc.date2009-03-25
dc.date.accessioned2026-07-07T12:56:20Z
dc.date.available2026-07-07T12:56:20Z
dc.descriptionWe have compared the results of a number of published class I methanol maser surveys with the catalogue of high-mass outflow candidates identified from the GLIMPSE survey (known as extended green objects or EGOs). We find class I methanol masers associated with approximately two-thirds of EGOs. Although the association between outflows and class I methanol masers has long been postulated on the basis of detailed studies of a small number of sources, this result demonstrates the relationship for the first time on a statistical basis. Despite the publication of a number of searches for class I methanol masers, a close physical association with another astrophysical object which could be targeted for the search is still lacking. The close association between class I methanol masers and EGOs therefore provides a large catalogue of candidate sources, most of which have not previously been searched for class I methanol masers. Interstellar masers and outflows have both been proposed to trace an evolutionary sequence for high-mass star formation, therefore a better understanding of the relationship between class I methanol masers and outflow offers the potential for comparison and amalgamation of these two evolutionary sequences.
dc.description8 pages, 4 tables, accepted to be published in MNRAS
dc.identifierhttps://arxiv.org/abs/0903.4223
dc.identifierhttp://arxiv.org/abs/0903.4223
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224548
dc.subjectSolar and Stellar Astrophysics
dc.titleClass I methanol masers: Masers with EGOs
dc.typetext

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