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arXiv:astro-ph/0406338 (astro-ph)
[Submitted on 15 Jun 2004 (v1), last revised 16 Jun 2004 (this version, v2)]

Title:Do We Know of Any Maunder Minimum Stars?

Authors:Jason T. Wright
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Abstract: Most stars previously identified as Maunder minimum stars are old stars evolved off of the main sequence. Analysis of activity measurements from the California and Carnegie Planet Search program stars and Hipparcos parallaxes implies that the canonical age-chromospheric activity relation breaks down for stars older than $\sim 6$ Gyr when activity is calculated from Mount Wilson S values. Stars only 1 magnitude above the main sequence exhibit significantly suppressed activity levels which have been mistaken for examples of Maunder minimum behavior.
Comments: 10 pages, 8 figures. Accepted by AJ
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0406338
  (or arXiv:astro-ph/0406338v2 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0406338
Related DOI: https://doi.org/10.1086/423221

Submission history

From: Jason Wright [view email]
[v1] Tue, 15 Jun 2004 07:32:59 UTC (110 KB)
[v2] Wed, 16 Jun 2004 19:00:52 UTC (110 KB)
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