One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet between the size of Earth and Neptune within the orbit […]
Stellar Cartography
Posted inAstrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Status Report, Stellar Cartography, Water/Hycean Worlds & Oceanography
Why Estimating η⊕ Is Difficult: A Kepler-Centric Perspective
η⊕, the occurrence rate of rocky habitable zone exoplanets orbiting Sun-like stars, is of great interest to both the astronomical community and the general public. The Kepler space telescope has […]
Posted inAriel Mission, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Missions & Hardware, Space Weather & Heliophysics, Status Report, Stellar Cartography
Spectropolarimetric Characterisation Of Exoplanet Host Stars In Preparation Of The Ariel Mission II. The magnetised wind environment of TOI-1860, DS Tuc A, and HD 63433
We update the status of the spectropolarimetric campaign dedicated to characterise the magnetic field properties of a sample of known exoplanet-hosting stars included in the current target list of the […]
Posted inAstrochemistry, Astrogeology, Exoplanets, -moons, -comets, Space Weather & Heliophysics, Status Report, Stellar Cartography, Water/Hycean Worlds & Oceanography
Stellar Chemistry And Planet Size: Insights From GALAH DR4
The well-known correlation between stellar metallicity and planet occurrence is strongest for giant planets, but weaker for smaller planets, suggesting that detailed elemental patterns beyond [Fe/H] may be relevant.
Posted inExoplanets, -moons, -comets, Status Report, Stellar Cartography
Exoplanet Formation Inference Using Conditional Invertible Neural Networks
The interpretation of the origin of observed exoplanets is usually done only qualitatively due to uncertainties of key parameters in planet formation models.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Stellar Cartography
Predictions Of The Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. V. Detection Rates of Multiplanetary Systems In High Magnification Microlensing Events
The Nancy Grace Roman Space Telescope will expand the reach of gravitational microlensing surveys by increasing the number of events monitored and the precision of their light curves.
Posted inAstrogeology, Imaging & Spectroscopy, Press Release, Stellar Cartography
Bridging Stellar Evolution And Planet Formation: From Birth, To Survivors Of The Fittest, To The Second Generation Of Planets
Stars and planets form, live, and evolve in unison. Throughout the life of a star, dusty circumstellar discs and stellar outflows influence the further evolution of both the star(s) and […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Origin & Evolution of Life, Panspermia, Status Report, Stellar Cartography
The Role Of Supernova Remnants For The Emergence Of Pre-biotic Chemistry In Molecular Clouds
There is growing evidence that the Sun might have formed within a nebula impacted by at least one SNR. In this scenario, ejecta and shocks from SNRs may have provided […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Radiation, Space Weather & Heliophysics, Status Report, Stellar Cartography
Transients As Determinants Of Habitability
Stellar magnetic activity, manifested through spots (faculae and flares), fundamentally shapes the exoplanets’ environments.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Stellar Cartography
The Next Frontier In Exoplanet Science: Imaging Our Neighbouring Planetary Systems
Transmission and eclipse spectroscopy have been invaluable tools for the characterisation of extrasolar planet atmospheres. While they will continue to provide many new insights and discoveries in the decade(s) to […]