Search Results - "Arney, Giada"
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Constraining the climate and ocean pH of the early Earth with a geological carbon cycle model
Published in Proceedings of the National Academy of Sciences - PNAS (17-04-2018)“…The early Earth’s environment is controversial. Climatic estimates range from hot to glacial, and inferred marine pH spans strongly alkaline to acidic. Better…”
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Evolved Climates and Observational Discriminants for the TRAPPIST-1 Planetary System
Published in The Astrophysical journal (01-11-2018)“…The TRAPPIST-1 planetary system provides an unprecedented opportunity to study terrestrial exoplanet evolution with the James Webb Space Telescope (JWST) and…”
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Pale Orange Dots: The Impact of Organic Haze on the Habitability and Detectability of Earthlike Exoplanets
Published in The Astrophysical journal (10-02-2017)“…Hazes are common in known planetary atmospheres, and geochemical evidence suggests that early Earth occasionally supported an organic haze with significant…”
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Nitrogen Dioxide Pollution as a Signature of Extraterrestrial Technology
Published in The Astrophysical journal (01-02-2021)“…Nitrogen dioxide (NO2) on Earth today has biogenic and anthropogenic sources. During the Covid-19 pandemic, observations of global NO2 emissions have shown a…”
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Habitable Moist Atmospheres on Terrestrial Planets near the Inner Edge of the Habitable Zone around M Dwarfs
Published in The Astrophysical journal (10-08-2017)“…Terrestrial planets in the habitable zones (HZs) of low-mass stars and cool dwarfs have received significant scrutiny recently. Transit spectroscopy of such…”
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Exoplanet Biosignatures: Understanding Oxygen as a Biosignature in the Context of Its Environment
Published in Astrobiology (01-06-2018)“…We describe how environmental context can help determine whether oxygen (O ) detected in extrasolar planetary observations is more likely to have a biological…”
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The Pale Orange Dot: The Spectrum and Habitability of Hazy Archean Earth
Published in Astrobiology (01-11-2016)“…Recognizing whether a planet can support life is a primary goal of future exoplanet spectral characterization missions, but past research on habitability…”
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Organic Haze as a Biosignature in Anoxic Earth-like Atmospheres
Published in Astrobiology (01-03-2018)“…Early Earth may have hosted a biologically mediated global organic haze during the Archean eon (3.8-2.5 billion years ago). This haze would have significantly…”
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Parker Solar Probe Imaging of the Night Side of Venus
Published in Geophysical research letters (16-02-2022)“…We present images of Venus from the Wide‐Field Imager for Parker Solar Probe (WISPR) telescope on board the Parker Solar Probe (PSP) spacecraft, obtained…”
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Erratum: “Evolved Climates and Observational Discriminants for the TRAPPIST-1 Planetary System” (2018, ApJ, 867, 76)
Published in The Astrophysical journal (01-05-2022)Get full text
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Bayesian Analysis for Remote Biosignature Identification on exoEarths (BARBIE). II. Using Grid-based Nested Sampling in Coronagraphy Observation Simulations for O2 and O3
Published in The Astronomical journal (01-01-2024)“…We present the results for the detectability of the O2 and O3 molecular species in the atmosphere of an Earth-like planet using reflected light at visible…”
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Revealing the Mysteries of Venus: The DAVINCI Mission
Published in The planetary science journal (01-05-2022)“…The Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging (DAVINCI) mission described herein has been selected for flight to Venus as part…”
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Venus Evolution Through Time: Key Science Questions, Selected Mission Concepts and Future Investigations
Published in Space science reviews (01-10-2023)“…In this work we discuss various selected mission concepts addressing Venus evolution through time. More specifically, we address investigations and payload…”
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IS THE PALE BLUE DOT UNIQUE? OPTIMIZED PHOTOMETRIC BANDS FOR IDENTIFYING EARTH-LIKE EXOPLANETS
Published in The Astrophysical journal (20-01-2016)“…ABSTRACT The next generation of ground- and space-based telescopes will image habitable planets around nearby stars. A growing literature describes how to…”
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Sensitive Probing of Exoplanetary Oxygen via Mid-Infrared Collisional Absorption
Published in Nature astronomy (01-04-2020)“…The collision-induced fundamental vibration–rotation band at 6.4 μm is the strongest absorption feature from O2 in the infrared, yet it has not been previously…”
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Venus as a Laboratory for Exoplanetary Science
Published in Journal of geophysical research. Planets (01-08-2019)“…The current goals of the astrobiology community are focused on developing a framework for the detection of biosignatures, or evidence thereof, on objects…”
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Correction to: Venus Evolution Through Time: Key Science Questions, Selected Mission Concepts and Future Investigations
Published in Space science reviews (01-12-2023)Get full text
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Spatially resolved measurements of H2O, HCl, CO, OCS, SO2, cloud opacity, and acid concentration in the Venus near-infrared spectral windows
Published in Journal of geophysical research. Planets (01-08-2014)“…We observed Venus with the Apache Point Observatory 3.5 m telescope TripleSpec spectrograph (R = 3500, λ = 0.96–2.47 µm) on 1–3 March 2009 and on 25, 27, and…”
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Retrievals Applied to a Decision Tree Framework Can Characterize Earthlike Exoplanet Analogs
Published in The planetary science journal (01-01-2024)“…Abstract Exoplanet characterization missions planned for the future will soon enable searches for life beyond our solar system. Critical to the search will be…”
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The Fundamental Connections between the Solar System and Exoplanetary Science
Published in Journal of Geophysical Research: Planets (01-02-2021)“…Over the past several decades, thousands of planets have been discovered outside our Solar System. These planets exhibit enormous diversity, and their large…”
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