Despite decades of scientific research on the subject, the climate of the first 1.5 Gyr of Mars history has not been fully understood yet.
atmosphere
Posted inAI - Data - Apps - Cybernetics, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Status Report
Parameterizing Pressure-temperature Profiles Of Exoplanet Atmospheres With Neural Networks
Atmospheric retrievals (AR) of exoplanets typically rely on a combination of a Bayesian inference technique and a forward simulator to estimate atmospheric properties from an observed spectrum. A key component […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Habitable Zones, Mars, Space Weather & Heliophysics, Status Report
Variability In Low Mars Atmosphere’s H2O Concentration Stimulated By Solar Cycle Activity
Exploring planetary atmospheres, particularly Mars, captivates planetary science. Mars’ thin, CO2-rich atmosphere poses a unique puzzle involving composition, climate history, and habitability.
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Proxima Centauri, Status Report
Visible Extreme Adaptive Optics On Extremely Large Telescopes: Towards Detecting Oxygen In Proxima Centauri b And Analog
Looking to the future of exo-Earth imaging from the ground, core technology developments are required in visible extreme adaptive optics (ExAO) to enable the observation of atmospheric features such as […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
ATMOSPHERIX: II- Characterising Exoplanet Atmospheres Through Transmission Spectroscopy With SPIRou
In a companion paper, we introduced a publicly-available pipeline to characterise exoplanet atmospheres through high-resolution spectroscopy.
![Time series of spectra in Order 46 (1643 to 1695 nm) at subsequent steps of the data processing as detailed in Sections 3.1 and 3.2. From top to bottom: [a] Blaze- and telluric-corrected APERO-provided spectra (prior to step (i) in Section 3.1); [b] spectra corrected from the master-out template (step (i) in Section 3.1); [c] Normalised spectra (step (ii) in Section 3.1); and [d] PCA-corrected spectra (with 8 components removed; see Section 3.2). Note that time series of normalised spectra cleaned with the auto-encoder, visually similar to the bottom panel, is not shown here. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2023/08/ATMOSPHERIXI.png?resize=1200%2C719&ssl=1)
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
ATMOSPHERIX: I- An open source high resolution transmission spectroscopy pipeline for exoplanets atmospheres with SPIRou
Atmospheric characterisation of exoplanets from the ground is an actively growing field of research. In this context we have created the ATMOSPHERIX consortium: a research project aimed at characterizing exoplanets […]
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
CO, H2O, And CH4 In The Dusty Atmosphere Of A ≤5 Myr-old Exoplanet
Very young massive planets are sufficiently luminous by their internal heat of formation to permit detailed studies, including spectroscopy of their atmospheres with large telescopes at sufficient resolution (λ/Δλ≳1000) to […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, SETI & Technosignatures, Status Report
Earth As A Transiting Exoplanet: A Validation Of Transmission Spectroscopy And Atmospheric Retrieval Methodologies For Terrestrial Exoplanets
The James Webb Space Telescope (JWST) will enable the search for and characterization of terrestrial exoplanet atmospheres in the habitable zone via transmission spectroscopy.
Posted inAtmospheres, Climate, Weather, Away Teams & Field Reports, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Exploration Gear & Tech, Press Release, Tricorders & Sensors
Tricorder Tech: Away Team Gas Detection With A Smartphone
Editor’s note: A key aspect to understanding a new location during an Away Team Mission is understanding the local atmosphere and how it is affected by – and influences – […]
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Status Report
PyATMOS: A Scalable Grid of Hypothetical Planetary Atmospheres
Cloud computing offers an opportunity to run compute-resource intensive climate models at scale by parallelising model runs such that datasets useful to the exoplanet community can be produced efficiently.