FG-dwarfs Archives

Mass-Radius Diagram comparing the data from the PlanetS catalog and the data from NASA Exoplanet Archive to highlight the effects of our selection criteria and our detailed study of references. The grey dots represented the default parameters from NASA, the light blue triangles the same but filtered with our criteria on uncertainties and the blue dots correspond to the PlanetS catalog. The resulting M-R relationships from Sect.2.2 are in solid red lines with the confidence intervals represented by the shaded red areas. The transitions between the three populations are represented by the composition line of 20% water at 650 K from Luo et al. (2024) in dashed orange and the dotted black line at 138 M⊕. -- astro-ph.EP

Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Icy Worlds, Press Release, Stellar Cartography, Water/Hycean Worlds & Oceanography

From Super-Earths to Sub-Neptunes: Observational Constraints and Connections to Theoretical Models

by Keith CowingJune 7, 2024June 7, 2024

We update the PlanetS catalog of transiting planets with precise and robust mass and radius measurements and use this comprehensive catalog to explore Mass-Radius (M-R) diagrams.

FG-dwarfs

From Super-Earths to Sub-Neptunes: Observational Constraints and Connections to Theoretical Models

Sugar Erythrulose Discovered In Interstellar Space

Sample Return: Minimizing Decompression And Warming During Deep Seawater Collection Increases Abundance And Activity Of Autochthonous Bacteria And Archaea

Sample Return From Earth’s Deep Biosphere

NASA Spaceline Current Awareness List #1,207 10 July 2026 (Space Life Science Research Results)

The Sun’s Chemical Peculiarity: Disentangling Galactic Chemical Evolution And Planetary Engulfment In Solar Twins