Surface chemistry on interstellar dust grains is recognized as a central component in astrochemical models, representing a plausible formation route for many of the observed complex molecular species.
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Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Radiation, Space Weather & Heliophysics, Stellar Cartography
Naturally Occurring “Space Weather Station” Elucidates New Way To Study Habitability Of Planets Orbiting M Dwarf Stars
How does a star affect the makeup of its planets? And what does this mean for the habitability of distant worlds? Carnegie’s Luke Bouma is exploring a new way to […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Status Report
University of Hawaii 88-inch Telescope Observations of the Interstellar Comet 3I/ATLAS: Spectrophotometric Blue-Sensitive Spectral Time Series Spanning Two Months from Discovery
Interstellar objects are the ejected building blocks of other solar systems. As such, they enable the acquisition of otherwise inaccessible information about nascent extrasolar systems.
Posted inAnalog Studies, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Venus
Venus As An Exoplanet Analog: Extended UV Transit Signatures And Coronal Occultations
Stellar activity manifests differently across wavelengths, causing flux variability that can obscure planetary transits. While transit observations are typically performed in the visible and infrared bands, where stellar flux is […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Imaging & Spectroscopy, Interstellar, Status Report
The Role Of Polycyclic Aromatic Hydrocarbons In Astrochemical Modeling At Different Evolutionary Stages Of Cold Dense Cloud Cores
Context. Although the role of PAHs have been highlighted in recent years, it is crucial to verify their functions at different evolutionary stages of dark cloud cores.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Resolving The Flat-spectrum Conundrum: Clumpy Aerosol Distributions In Sub-Neptune Atmospheres
Transmission spectroscopy of sub-Neptunes was expected to reveal their compositions and hence origins, yet many show flat near- to mid-infrared spectra.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Status Report
Horizontal And Vertical Exoplanet Thermal Structure From A JWST Spectroscopic Eclipse Map
Highly-irradiated giant exoplanets known as “ultra-hot Jupiters” are anticipated to exhibit large variations of atmospheric temperature and chemistry as a function of longitude, latitude, and altitude.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
A Next-Generation Exoplanet Atmospheric Retrieval Framework NEXOTRANS for Emission Spectroscopy: New Constraints and Atmospheric Characterization of WASP-69b Using JWST NIRCam and MIRI Observations
Thermal emission spectra provide key insights into the atmospheric composition and especially the temperature structure of an exoplanet.
Posted inAI - Data - Apps - Cybernetics, Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Imaging & Spectroscopy, Status Report
Bridging Machine Learning and Spectroscopy: A New Analysis for Astrochemical Target Selection
In the last few years, several approaches have used machine learning to reproduce the inventory and column densities of interstellar molecular sources.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exploration Gear & Tech, Imaging & Spectroscopy, Press Release, Space Weather & Heliophysics, Stellar Cartography
SOAPv4: A New Step Toward Modeling Stellar Signatures In Exoplanet Research
We present and describe a new version of the spot oscillation and planet code, SOAPv4. Our aim is to demonstrate its capabilities in modeling stellar activity in the context of […]