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Cited by 563

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Chromospheric Ca ii Emission in Nearby F, G, K, and M Stars

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Wright, J. T., Marcy, G. W., Butler, R. Paul, Vogt, S. S.·2004·The Astrophysical Journal Supplement Series

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 , 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.

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  • No planet for HD 166435

    Queloz, D., Henry, G. W., Sivan, J. P., Baliunas, S. L., Beuzit, J. L., Donahue, R. A., Mayor, M., Naef, D., Perrier, C., & Udry, S. (2001) · Astronomy and Astrophysics · doi:10.1051/0004-6361:20011308 · Cited by 913 · cited 1×

    “…Observatory, University of California at Santa Cruz, Santa Cruz, CA 95064 – 2 – stellar surface can produce variations in the measured radial velocity of a star and may even mimic the signature of planetary companions (Henry, Donahue, & Baliunas (2002); Queloz et al. (2001); Santos et al. (2003)).”
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Metadata

Authors
Wright, J. T., Marcy, G. W., Butler, R. P., & Vogt, S. S.
Venue
The Astrophysical Journal Supplement Series
Published
2004-06
Volume
152
Issue
2
Pages
261-295
ISSN
  • 0067-0049 (ISSN-L)
  • 1538-4365
OpenAlex
W2147930796
Cited by
563
References
1
FWCI
18.31
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Chromospheric Ca ii Emission in Nearby F, G, K, and M Stars. https://app.cochat.ai/papers/10.1086/386283
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Wright, J. T., Marcy, G. W., Butler, R. P., & Vogt, S. S. (2004). Chromospheric Ca ii Emission in Nearby F, G, K, and M Stars. The Astrophysical Journal Supplement Series. https://doi.org/10.1086/386283

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