Early solar mass loss: A potential solution to the weak sun paradox
Abstract
The weak sun paradox, in which early planetary temperatures are known to have remained above the freezing point of water despite presumably lower early solar luminosity, has customarily been resolved by imposing high early CO 2 atmospheric abundances. Speculative new solar models incorporating early solar mass loss provide a possible solution to the case of ‘missing’ solar lithium; at the same time, they predict higher early (4.5–3.8 Gyr BP) solar luminosities. These higher luminosities have the potential to produce planetary temperatures within the liquid water range indicated by observations without requiring extremely high CO 2 concentrations.
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One solution to the FYS is that the young Sun was not faint but more massive and therefore as bright as today.
“One solution to the FYS is that the young Sun was not faint but more massive and therefore as bright as today (205, 206).”
From The Archean atmosphere (2020) · cites this paper as [205]
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References 36 · Cited by 46
- Authors
- Graedel, T. E., Sackmann, I. ‐., & Boothroyd, A. I.
- Affiliations
- AT&T (United States) (US)
- California Institute of Technology (US)
- University of Toronto (CA)
- ORCID
- Graedel, T. E.
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 1991-10
- Volume
- 18
- Issue
- 10
- Pages
- 1881-1884
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W2097381313
- Cited by
- 46
- References
- 36
- Citations by year
- 2026: 2 · 2024: 1 · 2021: 2 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 1 · 2016: 1 · 2015: 1 · 2013: 1 · 2012: 2
- FWCI
- 7.13
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Geophysical Research Letters (publishedVersion)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › History and Developments in Astronomy
- Keywords
- solar mass loss, early Earth climate
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