TOI-732 Archives

The transmission spectrum of TOI-732 c in the NIR.

Astrochemistry, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

A JWST Transmission Spectrum Of The Temperate Sub-Neptune TOI-732 c

by Keith CowingDecember 25, 2025December 25, 2025

In recent years, JWST has facilitated detections of carbon-bearing molecules in the atmospheres of temperate sub-Neptunes orbiting M dwarfs, ushering in a new era in the characterization of this intriguing […]

Left panel: The rotation period-effective temperature distribution for M dwarfs across open clusters. Each data point is colour-coded according to its corresponding cluster. The spectral type is indicated on a second y-axis. The filled circles are coloured according to their corresponding cluster membership: Pleiades (age:0.12 Gyr) in blue; Praesepe (age: 0.67 Gyr) in green; NGC 6811 (age: 1 Gyr) in purple; NGC 752 (age: 1.4 Gyr) in pink; Ruprecht 147 (age: 2.7 Gyr) in yellow; M67 (age: 4 Gyr) in cyan. K2-18 and TOI 732 are shown as magenta and blue star symbols, respectively. Right panel: Log-log plot of age and rotation period for M dwarfs in the dataset from Engle & Guinan 2023 (shown in black circles). The red colour-coded data points represent cluster members (as reported by Curtis et al. 2020 and Godoy-Rivera et al. 2021) spectral types ranging from M2 to M6, as indicated by the colour bar. A third-degree polynomial best fit (Eqn. 5) to the dataset from Engle & Guinan 2023 is shown as an orange line. The grey shaded area represents the ±1𝜎 confidence interval around the fitted model. The magenta and blue vertical lines show the estimated age ranges as given in Table 4 for K2-18 and TOI-732, respectively. -- astro-ph.EP

Astrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Status Report, Stellar Cartography, Water/Hycean Worlds & Oceanography

Characterising M Dwarf Host Stars Of Two Candidate Hycean Worlds

by Keith CowingMarch 27, 2025March 27, 2025

Planetary systems orbiting M dwarf host stars are promising targets for atmospheric characterisation of low-mass exoplanets.

TOI-732

A JWST Transmission Spectrum Of The Temperate Sub-Neptune TOI-732 c

Characterising M Dwarf Host Stars Of Two Candidate Hycean Worlds

Survival and Detectability of Mars-Derived Organic Carbon in Phobos Regolith: A Quantitative Hardness Taxonomy for MMX Sample Analysis

Lava World Recon: Juno Studies Io’s Volcanoes

New Exomoon Detection Challenges Cosmic Labels

Discrimination of Tectonic, Swarm And Impact-related Marsquakes Using Spectral Characteristics

Mapping Alien Continents: Achieving Optical VLBI For Exoplanet Imaging