The elemental abundances of stars, particularly the refractory elements (e.g., Fe, Si, Mg), play an important role in connecting stars to their planets.
Sun-like star
![The plots of stellar metallicity ([Fe/H]) versus planetary orbital period for all transiting planets from the NASA exoplanet archive. Tranet stands for transiting planet. The transiting planets are split into four groups based on the multiplicity of their systems and are placed on four different panels. The two dotted vertical lines split the metallicity range into three metallicity regions, namely, sub-solar, solar, and super-solar. While low-multiplicity systems are evenly distributed across hosts of all metallicities there is a paucity of high-multiplicity systems around hosts of high metallicity indicating the effect of cold Jupiters on the inner planet multiplicity. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/02/Constraining-Planetary.png?resize=1200%2C717&ssl=1)
Posted inExoplanets, -moons, -comets, Gas Giants, Habitable Zones, Icy Worlds, Status Report, Water/Hycean Worlds & Oceanography
Constraining Planetary Formation Models Using Conditional Occurrences of Various Planet Types
We report the conditional occurrences between three planetary types: super-Earths (m sin i < 10 M⊕, P < 100 days), warm Jupiters (m sin i > 95 M⊕, 10 < […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gas Giants, Status Report, Stellar Cartography
Populating The Milky Way: Characterising Planet Demographics by Combining Galaxy Formation Simulations and Planet Population Synthesis Models
Stellar populations and their distribution differ widely across the Galaxy, which is likely to affect planet demographics.