Now showing items 1-6 of 6

  • Atmospheric origins of perchlorate on Mars and in the Atacama 

    Catling, D. C.; Claire, Mark; Zahnle, K. J.; Quinn, R. C.; Clark, B. C.; Hecht, M. H.; Kounaves, S. (2010) - Journal article
    Isotopic studies indicate that natural perchlorate is produced on Earth in arid environments by the oxidation of chlorine species through pathways involving ozone or its photochemical products. With this analogy, we propose ...
  • Modeling the Signature of Sulfur Mass-Independent Fractionation produced in the Archean Atmosphere 

    Claire, Mark; Kasting, James; Domagal-Goldman, Shawn; Stueken, Eva; Buick, Roger; Meadows, Victoria (2014-09-15) - Journal article
    Minor sulfur isotope anomalies indicate the absence of O2 from the Archean atmosphere. A rich dataset showing large variations in magnitude and sign of Δ33S and Δ36S, preserved in both sulfates and sulfides, suggests that ...
  • Multiple oscillations in Neoarchaean atmospheric chemistry 

    Izon, Gareth; Zerkle, Aubrey Lea; Zhelezinskaya, Yadviga; Farquhar, James; Newton, Robert J.; Poulton, Simon W.; Eigenbrode, Jennifer L.; Claire, Mark (2015-12-01) - Journal article
    The Great Oxidation Event (GOE) represents a crucial juncture in Earth history, signifying the rise in atmospheric oxygen from parts per million to per cent levels at ~2.45-2.32 billion-years-ago (Ga). Although planetary ...
  • The need for laboratory work to aid in the understanding of exoplanetary atmospheres 

    Fortney, Jonathan J.; Robinson, Tyler D.; Domagal-Goldman, Shawn; Amundsen, David Skålid; Brogi, Matteo; Claire, Mark; Crisp, David; Hebrard, Eric; Imanaka, Hiroshi; Kok, Remco de; Marley, Mark S.; Teal, Dillon; Barman, Travis; Bernath, Peter; Burrows, Adam; Charbonneau, David; Freedman, Richard S.; Gelino, Dawn; Helling, Christiane; Heng, Kevin; Jensen, Adam G.; Kane, Stephen; Kempton, Eliza M. -R.; Kopparapu, Ravi Kumar; Lewis, Nikole K.; Lopez-Morales, Mercedes; Lyons, James; Lyra, Wladimir; Meadows, Victoria; Moses, Julianne; Pierrehumbert, Raymond; Venot, Olivia; Wang, Sharon X.; Wright, Jason T. (Nexus for Exoplanet System Science (NExSS), 2016-02-23) - Working or discussion paper
    Advancements in our understanding of exoplanetary atmospheres, from massive gas giants down to rocky worlds, depend on the constructive challenges between observations and models. We are now on a clear trajectory for ...
  • The pale orange dot : the spectrum and habitability of hazy Archean Earth 

    Arney, Giada; Domagal-Goldman, Shawn D.; Meadows, Victoria S.; Wolf, Eric T.; Schwieterman, Edward; Charnay, Benjamin; Claire, Mark; Hébrard, Eric; Trainer, Melissa G. (2016-11-01) - Journal article
    Recognizing whether a planet can support life is a primary goal of future exoplanet spectral characterization missions, but past research on habitability assessment has largely ignored the vastly different conditions that ...
  • Quantitative modeling of the rise in atmospheric oxygen 

    Claire, Mark (University of Washington, 2008-08-01) - Other
    The abrupt rise of molecular oxygen in Earth’s atmosphere approximately 2.4 billion years ago was perhaps the most profound event in Earth’s history after the evolution of life itself. Biogeochemical cycles in Earth’s ...