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The polarization mode of the auroral radio emission from the early-type star HD 142301

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dc.contributor.author Leto P.
dc.contributor.author Trigilio C.
dc.contributor.author M. Oskinova L.
dc.contributor.author Ignace R.
dc.contributor.author Buemi C.
dc.contributor.author Umana G.
dc.contributor.author Cavallaro F.
dc.contributor.author Ingallinera A.
dc.contributor.author Bufano F.
dc.contributor.author Phillips N.
dc.contributor.author Agliozzo C.
dc.contributor.author Cerrigone L.
dc.contributor.author Todt H.
dc.contributor.author Riggi S.
dc.contributor.author Leone F.
dc.date.accessioned 2020-01-15T21:49:49Z
dc.date.available 2020-01-15T21:49:49Z
dc.date.issued 2019
dc.identifier.issn 1745-3925
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/156248
dc.description.abstract © 2018 The Author(s). We report the detection of the auroral radio emission from the early-type magnetic star HD142301. New VLA observations of HD142301 detected highly polarized amplified emission occurring at fixed stellar orientations. The coherent emission mechanism responsible for the stellar auroral radio emission amplifies the radiation within a narrow beam, making the star where this phenomenon occurs similar to a radio lighthouse. The elementary emission process responsible for the auroral radiation mainly amplifies one of the two magneto-ionic modes of the electromagnetic wave. This explains why the auroral pulses are highly circularly polarized. The auroral radio emission of HD142301 is characterized by a reversal of the sense of polarization as the star rotates. The effective magnetic field curve of HD142301 is also available making it possible to correlate the transition from the left to the right-hand circular polarization sense (and vice versa) of the auroral pulses with the known orientation of the stellar magnetic field. The results presented in this letter have implications for the estimation of the dominant magneto-ionic mode amplified within the HD142301 magnetosphere.
dc.relation.ispartofseries Monthly Notices of the Royal Astronomical Society: Letters
dc.subject Masers
dc.subject Polarization
dc.subject Radio continuum: stars
dc.subject Stars: early-type
dc.subject Stars: individual: HD142301
dc.subject Stars: magnetic field
dc.title The polarization mode of the auroral radio emission from the early-type star HD 142301
dc.type Article
dc.relation.ispartofseries-issue 1
dc.relation.ispartofseries-volume 482
dc.collection Публикации сотрудников КФУ
dc.relation.startpage L4
dc.source.id SCOPUS17453925-2019-482-1-SID85057154171

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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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