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Can Isotopologues Be Used as Biosignature Gases in Exoplanet Atmospheres? [PDF]

Life, 2023
Isotopologue ratios are anticipated to be one of the most promising signs of life that can be observed remotely. On Earth, carbon isotopes have been used for decades as evidence of modern and early metabolic processes. In fact, carbon isotopes may be the
Ana Glidden, Sara Seager, Janusz J Petkowski   +2 more
exaly   +6 more sources

Exoplanet Atmospheres [PDF]

Annual Review of Astronomy and Astrophysics, 2010
At the dawn of the first discovery of exoplanets orbiting Sun-like stars in the mid-1990s, few believed that observations of exoplanet atmospheres would ever be possible.
Sara Seager
exaly   +7 more sources

Aerosols in Exoplanet Atmospheres [PDF]

Journal of Geophysical Research E: Planets, 2021
Observations of exoplanet atmospheres have shown that aerosols, like in the Solar System, are common across a variety of temperatures and planet types. The formation and distribution of these aerosols are inextricably intertwined with the composition and
Peter Gao, Hannah R Wakeford, Sarah E Moran   +2 more
exaly   +7 more sources

Highlights in the study of exoplanet atmospheres [PDF]

Nature, 2014
Exoplanets are now being discovered in profusion. To understand their character, however, we require spectral models and data. These elements of remote sensing can yield temperatures, compositions and even weather patterns, but only if significant ...
Burrows, Adam S.
exaly   +5 more sources

Experimental Investigation of the Photochemical Production of Hydrocarbons in Warm Gas Giant Exoplanet Atmospheres

The Astrophysical Journal, 2023
In warm (equilibrium temperature
Benjamin Fleury, Yves Benilan, Olivia Venot, Bryana L. Henderson, Mark Swain, Murthy S. Gudipati   +5 more
doaj   +2 more sources

Ground-based Reconnaissance Observations of 21 Exoplanet Atmospheres with the Exoplanet Transmission Spectroscopy Imager

The Astronomical Journal
One of the most prolific methods of studying exoplanet atmospheres is transmission spectroscopy, which measures the difference between the depth of an exoplanet's transit signal at various wavelengths and attempts to correlate the depth changes to ...
Ryan J. Oelkers, Luke M. Schmidt, Erika Cook, Mary Anne Limbach, D. L. DePoy, J. L. Marshall, Jimmy Ardoin, Mitchell Barry, Evan Batteas, Alexandra Boone, Brant Conway, Silvana Delgado Adrande, John D. Dixon, Enrique Gonzalez-Vega, Alexandra Guajardo, Landon Holcomb, Christian Lambert, Shravan Menon, Divya Mishra, Jacob Purcell, Zachary Reed, Nathan Sala, Noah Siebersma, Nhu Ngoc Ton, Raenessa M. L. Walker, Z. Franklin Wang, Kaitlin Webber   +26 more
doaj   +2 more sources

Biological, Equilibrium and Photochemical Signatures of C, N and S Isotopes in the Early Earth and Exoplanet Atmospheres [PDF]

Life
The unambiguous detection of biosignatures in exoplanet atmospheres is a primary objective for astrobiologists and exoplanet astronomers. The primary methodology is the observation of combinations of gases considered unlikely to coexist in an atmosphere ...
James R. Lyons
doaj   +2 more sources

The Role of Atmospheric Composition in Defining the Habitable Zone Limits and Supporting E. coli Growth [PDF]

Life
Studying exoplanet atmospheres is essential for assessing their potential to host liquid water and their capacity to support life (their habitability).
Asena Kuzucan, Emeline Bolmont, Guillaume Chaverot, Jaqueline Quirino Ferreira, Bastiaan Willem Ibelings, Siddharth Bhatnagar, Daniel Frank McGinnis   +6 more
doaj   +2 more sources

Lightning and charge processes in brown dwarf and exoplanet atmospheres [PDF]

Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2019
Ch Helling, Paul B Rimmer
exaly   +2 more sources

High Accuracy Molecular Line Lists for Studies of Exoplanets and Other Hot Atmospheres

Frontiers in Astronomy and Space Sciences, 2022
The desire to characterize and model the atmospheres of the many extrasolar planets that have been discovered over the last three decades is a major driver of current astronomy.
Jonathan Tennyson, Sergey N. Yurchenko
doaj   +1 more source