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

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

2004-02-24

arxiv.org/abs/astro-ph/0402582v1

Astrophys.J.Suppl.152:261,2004

Astronomy and Astrophysics

Astrophysics

62 pages, 7 figures, 1 table. Second (extremely long) table is available at http://astro.berkeley.edu/~jtwright/CaIIdata/tab1.

Scientific paper

10.1086/386283

We 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.

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