Skip to content

Research at St Andrews

The evolution of solar flux from 0.1 nm to 160 μm: quantitative estimates for planetary studies

Research output: Research - peer-reviewArticle

DOI

Open Access permissions

Open

Author(s)

Mark W. Claire, John Sheets, Martin Cohen, Ignasi Ribas, Victoria S. Meadows, David C. Catling

School/Research organisations

Abstract

Understanding changes in the solar flux over geologic time is vital for understanding the evolution of planetary atmospheres because it affects atmospheric escape and chemistry, as well as climate. We describe a numerical parameterization for wavelength-dependent changes to the non-attenuated solar flux appropriate for most times and places in the solar system. We combine data from the Sun and solar analogs to estimate enhanced UV and X-ray fluxes for the young Sun and use standard solar models to estimate changing visible and infrared fluxes. The parameterization, a series of multipliers relative to the modern top of the atmosphere flux at Earth, is valid from 0.1 nm through the infrared, and from 0.6 Gyr through 6.7 Gyr, and is extended from the solar zero-age main sequence to 8.0 Gyr subject to additional uncertainties. The parameterization is applied to a representative modern day flux, providing quantitative estimates of the wavelength dependence of solar flux for paleodates relevant to the evolution of atmospheres in the solar system (or around other G-type stars). We validate the code by Monte Carlo analysis of uncertainties in stellar age and flux, and with comparisons to the solar proxies κ1 Cet and EK Dra. The model is applied to the computation of photolysis rates on the Archean Earth.
Close

Details

Original languageEnglish
JournalAstrophysical Journal
Volume757
Issue number1
DOIs
StatePublished - 6 Sep 2012

    Research areas

  • Planets and satellites: atmospheres, Stars: solar-type, Sun: evolution, Sun: UV radiation

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Two-billion-year-old evaporites capture Earth's great oxidation

    Blättler, C., Claire, M., Prave, A. R., Zerkle, A. L. & Warke, M. R. 22 Mar 2018 In : Science. eaar2687

    Research output: Research - peer-reviewArticle

  2. Evaluation of the Tindouf Basin region in Southern Morocco as an analog site for soil geochemistry on Noachian Mars

    Oberlin, E. A., Claire, M. W. & Kounaves, S. 9 Feb 2018 In : Astrobiology. 18, 8

    Research output: Research - peer-reviewArticle

  3. High-frequency fluctuations in redox conditions during the latest Permian mass extinction

    Mettam, C., Zerkle, A. L., Claire, M. W., Izon, G., Junium, C. J. & Twitchett, R. J. 1 Nov 2017 In : Palaeogeography, Palaeoclimatology, Palaeoecology. 485, p. 210-223

    Research output: Research - peer-reviewArticle

  4. Anoxic atmospheres on Mars driven by volcanism: implications for past environments and life

    Sholes, S. F., Smith, M. L., Claire, M. W., Zahnle, K. J. & Catling, D. C. 1 Jul 2017 In : Icarus. 290, p. 46-62 17 p.

    Research output: Research - peer-reviewArticle

  5. Biological regulation of atmospheric chemistry en route to planetary oxygenation

    Izon, G., Zerkle, A. L., Williford, K., Farquhar, J., Poulton, S. & Claire, M. W. 28 Mar 2017 In : Proceedings of the National Academy of Sciences of the United States of America. 114, 13, p. 2571-2579

    Research output: Research - peer-reviewArticle

Related by journal

  1. Photospheric observations of surface and body modes in solar magnetic pores

    Keys, P. H., Morton, R. J., Jess, D. B., Verth, G., Grant, S. D. T., Mathioudakis, M., Mackay, D. H., Doyle, J. G., Christian, D. J., Keenan, F. P. & Erdélyi, R. 10 Apr 2018 In : Astrophysical Journal. 857, 1, 28

    Research output: Research - peer-reviewArticle

  2. Stability of the broad-line region geometry and dynamics in Arp 151 over seven years

    Pancoast, A. , Barth, A. J. , Horne, K. , Treu, T. , Brewer, B. J. , Bennert, V. N. , Canalizo, G. , Gates, E. L. , Li, W. , Malkan, M. A. , Sand, D. , Schmidt, T. , Valenti, S. , Woo, J. H. , Clubb, K. I. , Cooper, M. C. , Crawford, S. M. , Hönig, S. F. , Joner, M. D. , Kandrashoff, M. T. & 7 others Lazarova, M., Nierenberg, A. M., Romero-Colmenero, E., Son, D., Tollerud, E., Walsh, J. L. & Winkler, H. 29 Mar 2018 In : Astrophysical Journal. 856, 2, 108

    Research output: Research - peer-reviewArticle

  3. Transverse wave induced Kelvin-Helmholtz rolls in spicules

    Antolin, P., Schmit, D., Pereira, T. M. D., De Pontieu, B. & De Moortel, I. 23 Mar 2018 In : Astrophysical Journal. 856, 1, 44

    Research output: Research - peer-reviewArticle

  4. Stellar populations of over one 1000 z ∼ 0.8 galaxies from LEGA-C: ages and star formation histories from Dn4000 and Hδ

    Wu, P-F. , van der Wel, A. , Gallazzi, A. , Bezanson, R. , Pacifici, C. , Straatman, C. , Franx, M. , Barišić, I. , Bell, E. F. , Brammer, G. B. , Calhau, J. , Chauke, P. , van Houdt, J. , Maseda, M. V. , Muzzin, A. , Rix, H-W. , Sobral, D. , Spilker, J. , van de Sande, J. , van Dokkum, P. & 1 others Wild, V. 12 Mar 2018 In : Astrophysical Journal. 855, 2, 85

    Research output: Research - peer-reviewArticle

  5. The extraordinary outburst in the massive protostellar system NGC6334I-MM1: emergence of strong 6.7 GHz methanol masers

    Hunter, T. R., Brogan, C. L., MacLeod, G. C., Cyganowski, C. J., Chibueze, J. O., Friesen, R., Hirota, T., Smits, D. P., Chandler, C. J. & Indebetouw, R. 23 Feb 2018 In : Astrophysical Journal. 854, 2, 170

    Research output: Research - peer-reviewArticle

Related by journal

  1. Astrophysical Journal (Journal)

    Carolin Villforth (Reviewer)
    2011 → …

    Activity: Publication peer-review and editorial workPeer review of manuscripts

  2. Astrophysical Journal (Journal)

    Helling, C. (Reviewer)
    1 Jan 200631 Dec 2017

    Activity: Publication peer-review and editorial workPeer review of manuscripts

  3. Astrophysical Journal (Journal)

    Mackay, D. H. (Editor)
    1997 → …

    Activity: Publication peer-review and editorial workEditor of research journal

  4. Astrophysical Journal (Journal)

    Hood, A. W. (Editor)
    1980 → …

    Activity: Publication peer-review and editorial workEditor of research journal

ID: 66186350