Cited by 467Stellar, planetary, and galactic studiesSolar and Space Plasma DynamicsAstronomy and Astrophysical Research

New Mass-Loss Measurements from Astrospheric Lyα Absorption

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Wood, B. E., Müller, H.-R., Zank, G. P., Linsky, J. L., Redfield, S.·2005·The Astrophysical Journal

Abstract

Measurements of stellar mass-loss rates are used to assess how wind strength varies with coronal activity and age for solar-like stars. Mass loss generally increases with activity, but we find evidence that winds suddenly weaken at a certain activity threshold. Very active stars are often observed to have polar starspots, and we speculate that the magnetic field geometry associated with these spots may be inhibiting the winds. Our inferred mass-loss/age relation represents an empirical estimate of the history of the solar wind. This result is important for planetary studies as well as solar/stellar astronomy, since solar wind erosion may have played an important role in the evolution of planetary atmospheres.

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Crossref · 10.1086/432716

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  • Observations are unsupportive: fast mass loss only happens in the first ~200 Ma after Sun-like stars form.

    “However, observations are unsupportive: Fast mass loss only happens in the first ~200 Ma after Sun-like stars form (207, 208).”

    From The Archean atmosphere (2020) · cites this paper as [207]

    Figure 3(b) and its accompanying discussion (page not provided) place the inferred weakening of the solar wind at about 0.7 Gyr when looking back toward younger ages. The paper therefore does not confine strong mass loss to the first ~200 million years; it suggests a different age pattern, with especially active, younger stars having weaker winds than the trend would predict. (LLM, conf=0.86)

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Research works printed but not linked: 1

  1. Petit, P., et al. 2005, MNRAS, in press

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Authors
Wood, B. E., Müller, H.-R., Zank, G. P., Linsky, J. L., & Redfield, S.
Affiliations
  • Joint Institute for Laboratory Astrophysics (US)
  • University of California, Riverside (US)
  • McDonald Observatory (US)
Venue
The Astrophysical Journal
Published
2005-07-11
Volume
628
Issue
2
Pages
L143-L146
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W1867591249
Cited by
467
References
19
Citations by year
2026: 20 · 2025: 19 · 2024: 20 · 2023: 11 · 2022: 20 · 2021: 22 · 2020: 23 · 2019: 25 · 2018: 27 · 2017: 25 · 2016: 29 · 2015: 21 · 2014: 18 · 2013: 19 · 2012: 20
FWCI
15.11
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Solar and Space Plasma Dynamics
  • Physical Sciences › Physics and Astronomy › Instrumentation › Astronomy and Astrophysical Research
Keywords
stellar mass loss, Lyman-alpha absorption, stellar winds, coronal activity, solar-type stars

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