Sonora Elf Owl Archives

This artist’s concept shows a brown dwarf, an object that is at least 13 times the mass of Jupiter but not massive enough to begin nuclear fusion in its core, which is the defining characteristic of a star. Scientist using NASA’s Spitzer Space Telescope recently made the first ever direct measurement of wind on a brown dwarf. Credits: NASA/JPL-Caltech

Astronomy & Telescopes, Atmospheres, Climate, Weather, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Status Report

Physical Parameters and Properties of 20 Cold Brown Dwarfs in JWST

by Keith CowingOctober 6, 2024October 6, 2024

We present a comprehensive analysis of 20 T and Y dwarfs using spectroscopy from the NIRSpec CLEAR/PRISM and MIRI LRS instruments on the James Webb Space Telescope. To characterize the […]

Sonora Elf Owl

Physical Parameters and Properties of 20 Cold Brown Dwarfs in JWST

Tricorder Tech: New Handheld Device Maps Chemical Composition Using Infrared Light

No Statistically Significant Evidence For A Correlation Between Stellar And planetary Composition

Water Planet Recon: How Accurately Can We Measure Earth Ocean’s Deepest Point?

Webb Reveals A Stunning Panorama Of Star Formation

Deep Learning of SHERLOC Raman Spectra For Facilitating Mars Astromaterial Identification