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Stellar SEDs from 0.3 to 2.5 μm: Tracing the Stellar Locus and Searching for Color Outliers in the SDSS and 2MASS
- K. Covey, Ž. Ivezić, Penn State
- Physics
- 31 July 2007
The Sloan Digital Sky Survey (SDSS) and Two Micron All Sky Survey (2MASS) are rich resources for studying stellar astrophysics and the structure and formation history of the Galaxy. As new surveys…
LSST Science Book, Version 2.0
- L. S. C. P. A. Abell, J. Allison, H. Zhan
- Physics
- 1 December 2009
A survey that can cover the sky in optical bands over wide fields to faint magnitudes with a fast cadence will enable many of the exciting science opportunities of the next decade. The Large Synoptic…
How Earth's atmosphere evolved to an oxic state: A status report
- D. Catling, M. Claire
- Environmental Science
- 30 August 2005
The Evolution of Solar Flux from 0.1 nm to 160 μm: Quantitative Estimates for Planetary Studies
- M. Claire, J. Sheets, Martin Cohen, I. Ribas, V. Meadows, D. Catling
- Physics, Geology
- 6 September 2012
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.…
Nitrogen-enhanced greenhouse warming on early Earth
- C. Goldblatt, M. Claire, T. Lenton, A. Matthews, A. Watson, K. Zahnle
- Geology, Environmental Science
- 1 December 2009
Early in Earth’s history, the Sun provided less energy to the Earth than it does today. However, the Earth was not permanently glaciated, an apparent contradiction known as the faint young Sun…
A bistable organic-rich atmosphere on the Neoarchaean Earth
- A. Zerkle, M. Claire, S. Domagal‐Goldman, J. Farquhar, S. Poulton
- Geology, Environmental Science
- 1 May 2012
It has been hypothesized that, before widespread oxygenation about 2.45 billion years ago, the Earth’s atmosphere contained an organic haze similar to that on Titan. However, these theoretical…
Biogeochemical modelling of the rise in atmospheric oxygen
- M. Claire, D. Catling, K. Zahnle
- Environmental Science
- 1 December 2006
Understanding the evolution of atmospheric molecular oxygen levels is a fundamental unsolved problem in Earth's history. We develop a quantitative biogeochemical model that simulates the…
Atmospheric origins of perchlorate on Mars and in the Atacama
- D. Catling, M. Claire, S. Kounaves
- Environmental Science
- 2010
[1] 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.…
The Pale Orange Dot: The Spectrum and Habitability of Hazy Archean Earth
- G. Arney, S. Domagal‐Goldman, M. Trainer
- Geology, PhysicsAstrobiology
- 14 October 2016
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Onset of the aerobic nitrogen cycle during the Great Oxidation Event
- A. Zerkle, S. Poulton, C. Junium
- Environmental Science, GeographyNature
- 23 February 2017
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