Lethal surface ozone concentrations are possible on habitable zone exoplanets
Ozone ($\textrm {O} _3 $) is important for the survival of life on Earth because it shields the
surface from ionising ultraviolet (UV) radiation. However, the existence of $\textrm {O} _3 $ in …
surface from ionising ultraviolet (UV) radiation. However, the existence of $\textrm {O} _3 $ in …
RETRACTED ARTICLE: Exoplanet Habitability: Potential O2/O3 Biosignatures in the Ultraviolet
ME Sachkov, VI Shematovich - Solar System Research, 2019 - Springer
Currently, the strongest remotely detectable biosignature in the Earth's atmosphere is
molecular oxygen (O 2) produced during photosynthesis. However, recent studies of …
molecular oxygen (O 2) produced during photosynthesis. However, recent studies of …
Ozone as a Proxy for Molecular Oxygen
T Kozakis, JM Mendonça… - The Astrobiology Science …, 2022 - assets.pubpub.org
Molecular oxygen (O2) paired with a reducing gas is regarded as a promising biosignature
pair for atmospheric characterization of exoplanets. In circumstances when O2 may not be …
pair for atmospheric characterization of exoplanets. In circumstances when O2 may not be …
Asymmetries in the simulated ozone distribution on TRAPPIST-1e due to orography
A Bhongade, DR Marsh, F Sainsbury-Martinez… - arXiv preprint arXiv …, 2024 - arxiv.org
TRAPPIST-1e is a tidally locked rocky exoplanet orbiting the habitable zone of an M dwarf
star. Upcoming observations are expected to reveal new rocky exoplanets and their …
star. Upcoming observations are expected to reveal new rocky exoplanets and their …
Constraining oxygen false positives in planetary atmospheres
CE Harman, JC Schottelkotte… - Search for Life Beyond …, 2014 - ui.adsabs.harvard.edu
Abstract Oxygen (O2) and ozone (O3) in the present Earth's atmosphere are byproducts of
oxygenic photosynthesis coupled with organic carbon burial. On Earth, no known abiotic …
oxygenic photosynthesis coupled with organic carbon burial. On Earth, no known abiotic …
[HTML][HTML] Search for signatures of life on exoplanets
F Selsis - Earth-like Planets and Moons, 2002 - adsabs.harvard.edu
The spectroscopic characterization of Earth-like exoplanets is one of the goals shared by
two major projects: Darwin (ESA) and TPF-Terrestrial Planet Finder (NASA). By producing …
two major projects: Darwin (ESA) and TPF-Terrestrial Planet Finder (NASA). By producing …
Is ozone a reliable proxy for molecular oxygen?-I. The O2–O3 relationship for Earth-like atmospheres
Molecular oxygen (O 2) paired with a reducing gas is regarded as a promising biosignature
pair for the atmospheric characterization of terrestrial exoplanets. In circumstances when O 2 …
pair for the atmospheric characterization of terrestrial exoplanets. In circumstances when O 2 …
Variability due to climate and chemistry in observations of oxygenated Earth-analogue exoplanets
ABSTRACT The Great Oxidation Event was a period during which Earth's atmospheric
oxygen (O2) concentrations increased from∼ 10− 5 times its present atmospheric level …
oxygen (O2) concentrations increased from∼ 10− 5 times its present atmospheric level …
[HTML][HTML] Occurrence and Detectability of O2-Rich Atmospheres in Circumstellar" Habitable Zones"
F Selsis - The Evolving Sun and its Influence on Planetary …, 2002 - adsabs.harvard.edu
The search for extrasolar habitable planets should be possible in less than 15 years. Two
majors program share this ambition: Darwin (Leger et al. 1996, ESA) and TPF-Terrestrial …
majors program share this ambition: Darwin (Leger et al. 1996, ESA) and TPF-Terrestrial …
On the detection of carbon monoxide as an anti-biosignature in exoplanetary atmospheres
Y Wang, F Tian, T Li, Y Hu - Icarus, 2016 - Elsevier
Recent works suggest that oxygen can be maintained on lifeless exoplanets in the habitable
zones of M dwarfs as the results of photochemical reactions. However, the same …
zones of M dwarfs as the results of photochemical reactions. However, the same …