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Cited by 55Stellar, planetary, and galactic studiesSolar and Space Plasma DynamicsAstrophysics and Star Formation Studies

Radio emission and mass loss rate limits of four young solar-type stars

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Fichtinger, Bibiana, Güdel, Manuel, Mutel, Robert L., Hallinan, Gregg, Gaidos, Eric, Skinner, Stephen L., Lynch, Christene, Gayley, Kenneth G.·2017·Astronomy & Astrophysics
DOI 10.1051/0004-6361/201629886
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Abstract

Aims. Observations of free-free continuum radio emission of four young main-sequence solar-type stars (EK Dra, π1 UMa, χ1 Ori, and κ1 Cet) are studied to detect stellar winds or at least to place upper limits on their thermal radio emission, which is dominated by the ionized wind. The stars in our sample are members of The Sun in Time programme and cover ages of ~0.1–0.65 Gyr on the main-sequence. They are similar in magnetic activity to the Sun and thus are excellent proxies for representing the young Sun. Upper limits on mass loss rates for this sample of stars are calculated using their observational radio emission. Our aim is to re-examine the faint young Sun paradox by assuming that the young Sun was more massive in its past, and hence to find a possible solution for this famous problem.

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  • Upper limits on mass loss rates of young Sun-like stars from radio observations and rotation-rate considerations rule out the early Sun being more massive and luminous enough to solve the faint young Sun problem.

    “However, upper limits on the mass loss rates of young Sun-like stars from radio observations and considerations of how rapidly the rotation rates of Sun-like stars decrease with age rule out this solution (Gaidos et al. 2000; Johnstone et al. 2015; Fichtinger et al. 2017).”

    From The young Sun's XUV-activity as a constraint for lower CO2-limits in the Earth's Archean atmosphere (2021) · cites this paper as Fichtinger et al. 2017

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Authors
Fichtinger, B., Güdel, M., Mutel, R. L., Hallinan, G., Gaidos, E., Skinner, S. L., Lynch, C., & Gayley, K. G.
Affiliations
  • University of Vienna (AT)
  • University of Iowa (US)
  • California Institute of Technology (US)
  • University of Hawaiʻi at Mānoa (US)
  • University of Colorado Boulder (US)
ORCID
Venue
Astronomy & Astrophysics
Publisher
EDP Sciences
Published
2017-03
Volume
599
Pages
A127
ISSN
  • 0004-6361 (ISSN-L)
  • 1432-0746
DOI
10.1051/0004-6361/201629886
OpenAlex
W2562870128
Cited by
55
References
53
Citations by year
2026: 3 · 2025: 5 · 2024: 5 · 2023: 5 · 2022: 3 · 2021: 8 · 2020: 9 · 2019: 7 · 2018: 7 · 2017: 3
FWCI
2.71
Type
journal article
Language
en
Open access
Locations
  • Astronomy and Astrophysics (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • eSpace (Curtin University) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Science Foundation
  • National Radio Astronomy Observatory
  • Associated Universities
  • National Science Council
  • Austrian Science Fund
  • Universität Wien
  • Korea Astronomy and Space Science Institute
  • National Astronomical Observatory of Japan
  • National Institutes of Natural Sciences
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 › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
Keywords
stellar mass loss rates, young solar-type stars, stellar winds, ionic wind, thermal radio emission, EK Draconis, young Sun, faint young Sun paradox, stellar magnetic activity

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