Chromospheric Ca II emission in nearby F, G, K, and M stars

Jason Wright, G. W. Marcy, R. P. Butler, S. S. Vogt

Research output: Contribution to journalArticle

347 Citations (Scopus)

Abstract

We present chromospheric Ca II H and K 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 from general parameterizations for 1228 stars, ∼1000 of which have no previously published S-values. We also present precise time series of activity measurements for these stars.

Original languageEnglish (US)
Pages (from-to)261-295
Number of pages35
JournalAstrophysical Journal, Supplement Series
Volume152
Issue number2
DOIs
StatePublished - Jun 1 2004

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G stars
F stars
K stars
M stars
parameterization
planet
observatory
time series
stars
main sequence stars
planets
observatories
project

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science

Cite this

Wright, Jason ; Marcy, G. W. ; Butler, R. P. ; Vogt, S. S. / Chromospheric Ca II emission in nearby F, G, K, and M stars. In: Astrophysical Journal, Supplement Series. 2004 ; Vol. 152, No. 2. pp. 261-295.
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Chromospheric Ca II emission in nearby F, G, K, and M stars. / Wright, Jason; Marcy, G. W.; Butler, R. P.; Vogt, S. S.

In: Astrophysical Journal, Supplement Series, Vol. 152, No. 2, 01.06.2004, p. 261-295.

Research output: Contribution to journalArticle

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