Chromospheric CaII Emission in Nearby F, G, K, and M stars

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dc.creatorWright, Jason T.
dc.creatorMarcy, Geoffrey W.
dc.creatorButler, R. Paul
dc.creatorVogt, Steve S.
dc.date2004-02-24
dc.date.accessioned2026-07-07T10:47:48Z
dc.date.available2026-07-07T10:47:48Z
dc.descriptionWe present chromospheric CaII activity measurements, rotation periods and ages for ~1200 F-, G-, K-, and M- type main-sequence stars from ~18,000 archival spectra taken at Keck and Lick Observatories as a part of the California and Carnegie Planet Search Project. We have calibrated our chromospheric S values against the Mount Wilson chromospheric activity data. From these measurements we have calculated median activity levels and derived R'HK, stellar ages, and rotation periods for 1228 stars, ~1000 of which have no previously published S values. We also present precise time series of activity measurements for these stars.
dc.description62 pages, 7 figures, 1 table. Second (extremely long) table is available at http://astro.berkeley.edu/~jtwright/CaIIdata/tab1.tex Accepted by ApJS
dc.identifierhttps://arxiv.org/abs/astro-ph/0402582
dc.identifierhttp://arxiv.org/abs/astro-ph/0402582
dc.identifierAstrophys.J.Suppl.152:261,2004
dc.identifierdoi:10.1086/386283
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183660
dc.subjectAstrophysics
dc.titleChromospheric CaII Emission in Nearby F, G, K, and M stars
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