temperate rocky planet Archives

Habitable zone for a white dwarf (blue region) at ages of 2, 6, and 10 Gyr compared to the habitable zone of the red dwarf TRAPPIST-1 (orange region). The inset shows the size comparison of a typical 0.6M⊙ white dwarf (cyan region) to that of TRAPPIST-1 (pink region). The optimistic habitable zone for TRAPPIST-1 is calculated from the recent Venus and early Mars limits from Kopparapu et al. (2013) using the luminosity and effective temperature from Van Grootel et al. (2018). The magenta region specifies where overlap of the two habitable zones occurs. The dashed black line shows the orbital radius at which an Earth-like planet around a 0.6M⊙ white dwarf stays in the habitable zone for the maximum amount of time (i.e., maximum habitable lifetime), and the dashed red line shows the Roche limit (i.e., tidal disruption limit) for such a system. -- astro-ph.EP

Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Origin & Evolution of Life, Status Report

Potential For Life To Exist And Be Detected On Earth-like Planets Orbiting White Dwarfs

by Keith CowingDecember 2, 2024December 2, 2024

With recent observations confirming exoplanets orbiting white dwarfs, there is growing interest in exploring and quantifying the habitability of temperate rocky planets around white dwarfs.

temperate rocky planet

Potential For Life To Exist And Be Detected On Earth-like Planets Orbiting White Dwarfs

Material Cycling Across Earth’s Spheres And Triggers Of Cambrian Explosion: A Tectonic Perspective

Where Does Earth’s Nitrogen Go? Two Atoms Offer A Clue

Exotic Methanol Discovered In Planet-Building Zones

More Than One Thousand TESS Planets

First Detection Of Variable Water Clouds Outside Of Our Solar System