An H2O maser in the infrared source IRAS 20126+4104

dc.creatorEVGUENI LEKHT EVGUENIEVICH
dc.date2007
dc.date.accessioned2022-10-12T19:38:41Z
dc.date.available2022-10-12T19:38:41Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/949
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4119213
dc.descriptionResults of monitoring of H2O maser in the infrared source IRAS 20126+4104, which is associated with a cool molecular cloud, are presented. The observations were carried out on the 22-meter radio telescope of the Pushchino Radio Astronomy Observatory (Russia) between June 1991 and January 2006. The spectrum of the H2O maser emission extends from −16.7 to 4.8 km/s and splits into separate groups of emission features. Cyclic variations of the integrated maser flux with a period from 3.4 to 5.5 years were detected, together with strong flares of up to 220 Jy in individual emission features. It is shown that large linewidths in periods of high maser activity are due to small-scale turbulent motions of the material. An expanding envelope around a young star is accepted as a model for the source. The protostar has a small peculiar velocity with respect to the molecular cloud (∼2 km/s). Individual emission features form organized structures, including multi-link chains.
dc.formatapplication/pdf
dc.languageeng
dc.publisherAstronomy reports
dc.relationcitation:Lekht, E.E., et al., (2007). An H2O maser in the infrared source IRAS 20126+4104, Astronomy reports, Vol.51(7):531-541
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/21
dc.titleAn H2O maser in the infrared source IRAS 20126+4104
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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