This chapter reviews the current state of observational and theoretical efforts in the characterization of exoplanet atmospheres, with a focus on developments enabled through the Swiss National Centre for Competence […]
HST
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
TOI-1080 b: A Temperate, Rocky Planet Orbiting A Quiet M4V Host
We present the detection and validation of a small, temperate transiting exoplanet orbiting TOI-1080 every 3.9652482+0.0000014−0.0000015 days. The host is a quiet M4V star at 25.6 pc.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Probing The Atmospheres Of Young Long-Period Sub-Neptune Progenitors With ELT/ANDES
High-resolution cross-correlation spectroscopy (HRCCS) has emerged as a powerful technique for detecting and characterizing exoplanet atmospheres from the ground.
Posted inCommercial & Private Sector, Policy, Reports, Roadmaps, & Plans, Status Report
Space Science And The Space Economy
Will it be possible in the future to realize large, complex space missions dedicated to basic science like HST, Chandra and JWST? Or will their cost be just too great?
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Comets and Asteroids, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Curves Of Growth For Transiting Exocomets: Application To Fe II Lines In The Beta Pictoris System
This study introduces the exocomet curve of growth, a new method to analyse the variable absorptions observed in β Pictoris spectrum and link them to the physical properties of the […]
Posted inAstrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Status Report
A Revisit Of The Mass-Metallicity Trends In Transiting Exoplanets
The two prevailing planet formation scenarios, core-accretion and disk instability, predict distinct planetary mass-metallicity relations. Yet, the detection of this trend remains challenging due to inadequate data on planet atmosphere […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
New Mass and Radius Constraints On The LHS 1140 Planets — LHS 1140 b Is Either A Temperate Mini-Neptune Or A Water World
LHS 1140 b and c are two small temperate exoplanets transiting a nearby M4.5 dwarf. The planetary system was observed with multiple facilities since its discovery in 2017, including MEarth, […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, Io, Mapping, Geodesy, Cartography, Bathymetry, Press Release
Spectroscopic Mapping Of Io’s Surface With HST/STIS: SO2 Frost, Sulfur allotropes, And Large-scale Compositional Patterns
Io’s intense volcanic activity results in one of the most colorful surfaces in the solar system. Ultraviolet and visible-wavelength observations of Io are critical to uncovering the chemistry behind its […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
The Transmission Spectrum Of The Potentially Rocky Planet L 98-59 c
We present observations of the 1.35+/-0.07 Earth-radius planet L 98-59 c using Wide Field Camera~3 on the Hubble Space Telescope. L 98-59 is a nearby (10.6 pc), bright (H=7.4 mag), […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Ganymede, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Status Report
Probing Ganymede’s Atmosphere With HST Lyα Images In Transit Of Jupiter
We report results from far-ultraviolet observations by the Hubble Space Telescope of Jupiter’s largest moon Ganymede transiting across the planet’s dayside hemisphere.