UV habitable zone Archives

Left panel: The relation between the effective temperatures of the host stars and the effective fluxes incident on their planets. The blue, green, orange, and red dots represent gas giants, Neptunian-like planets, super-Earths, and terrestrial planets, respectively. The gray shaded area is the CHZ for each star, and the black, red, and purple lines represent the inner and outer boundaries of the CHZ for Earth mass, 5 Earth masses, and 0.1 Earth masses, respectively. Note that the three outer boundary lines overlap. The black dots represent the planets in our Solar System. Right panel: the relation between the NUV luminosities of the host stars and the distances between the stars and their planets. The pink, green, and blue shaded areas represent the UHZ for different NUV transmission rates of planetary atmospheres. The blue, green, orange, and red asterisks represent gas giants, Neptunian-like planets, super-Earths, and terrestrial planets that are located within both the CHZ and UHZ. -- astro-ph.SR

Astronomy & Telescopes, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy, Status Report, Stellar Cartography

Ultraviolet Photometry and Habitable Zones of Over 2700 Planet-Hosting Stars

by Keith CowingNovember 1, 2024November 1, 2024

The ongoing discovery of exoplanets has sparked significant interest in finding suitable worlds that could potentially support life. Stellar ultraviolet (UV; 100-3000 Å) radiation may play a crucial role in […]

Galactic distribution of the sample stars. The color bar means the extinction value. -- astro-ph.SR

Exoplanets, -moons, -comets, Habitable Zones, Space Weather & Heliophysics, Status Report

Ultraviolet and Chromospheric Activity and Habitability of M stars

by Keith CowingFebruary 28, 2024February 28, 2024

M-type stars are crucial for stellar activity studies since they cover two types of magnetic dynamos and particularly intriguing for habitability studies due to their abundance and long lifespans during […]