Magnetic activity in the young star SAO 51891

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dc.creatorBiazzo, K.
dc.creatorFrasca, A.
dc.creatorMarilli, E.
dc.creatorCovino, E.
dc.creatorAlcala', J. M.
dc.creatorCakirli, O.
dc.date2008-07-07
dc.date.accessioned2026-07-07T09:48:51Z
dc.date.available2026-07-07T09:48:51Z
dc.descriptionWe present preliminary results on a study based on contemporaneous photometric and spectroscopic observations of the young K0-1V star SAO 51891. We find that SAO 51891, a possible member of the Local Association, shows emission cores in the CaII H&K and fillings in the Halpha and CaII Infra-Red Triplet (IRT) lines. Moreover, we detect absorption lines of HeI-D3 and LiI and measure a v sini of 19 km/s. A clear rotational modulation of both the light and the photospheric temperature, due to photospheric spots, has been detected. The net Halpha chromospheric emission does not show any detectable variation, while the CaII IRT emission displays a fair modulation.
dc.description2 pages; 1 figure; To appear in Mem. S.A.It., Proceedings of the "LII Congresso della Societa' Astronomica Italiana", Teramo, Italy, May 4-8, 2008
dc.identifierhttps://arxiv.org/abs/0807.1083
dc.identifierhttp://arxiv.org/abs/0807.1083
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/164370
dc.subjectAstrophysics
dc.titleMagnetic activity in the young star SAO 51891
dc.typetext

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