529 citations · 3.3k across the 66 of their papers we have counts for
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Evaluating the Plausible Range of N2O Biosignatures on Exo-Earths: An Integrated Biogeochemical, Photochemical, and Spectral Modeling Approach
Edward W. Schwieterman, Stephanie L. Olson, Daria Pidhorodetska +7
Nitrous oxide (N2O) -- a product of microbial nitrogen metabolism -- is a compelling exoplanet biosignature gas with distinctive spectral features in the near- and mid-infrared, an…
Community Report from the Biosignatures Standards of Evidence Workshop
Victoria Meadows, Heather Graham, Victor Abrahamsson +72
The search for life beyond the Earth is the overarching goal of the NASA Astrobiology Program, and it underpins the science of missions that explore the environments of Solar Syste…
Earth as an Exoplanet. II. Earth's Time-variable Thermal Emission and Its Atmospheric Seasonality of Bioindicators
Jean-Noel Mettler, Sascha P. Quanz, Ravit Helled +2
We assess the dependence of Earth's disk-integrated mid-infrared thermal emission spectrum on observation geometries and investigate which and how spectral features are impacted by…
Alternative Methylated Biosignatures I: Methyl Bromide, A Capstone Biosignature
Michaela Leung, Edward W. Schwieterman, Mary N. Parenteau +1
The first potential exoplanet biosignature detections are likely to be ambiguous due to the potential for false positives: abiotic planetary processes that produce observables simi…
Accurate Modeling of Lyman-alpha Profiles and their Impact on Photolysis of Terrestrial Planet Atmospheres
Sarah Peacock, Travis S. Barman, Adam C. Schneider +4
Accurately measuring and modeling the Lyman- (Ly; 1215.67 Å) emission line from low mass stars is vital for our ability to build predictive high energy stellar spectra, ye…
Searching for technosignatures in exoplanetary systems with current and future missions
Jacob Haqq-Misra, Edward W. Schwieterman, Hector Socas-Navarro +9
Technosignatures refer to observational manifestations of technology that could be detected through astronomical means. Most previous searches for technosignatures have focused on…
Disruption of a Planetary Nitrogen Cycle as Evidence of Extraterrestrial Agriculture
Jacob Haqq-Misra, Thomas J. Fauchez, Edward W. Schwieterman +1
Agriculture is one of the oldest forms of technology on Earth. The cultivation of plants requires a terrestrial planet with active hydrological and carbon cycles and depends on the…