Tag

Spectral Observations

All articles tagged with #spectral observations

Webb's Gaze: Exploring Dwarf Planets and Debris Discs
astronomy2 years ago

Webb's Gaze: Exploring Dwarf Planets and Debris Discs

The James Webb Space Telescope (JWST) has observed a debris disk around a white dwarf star, providing insights into the composition and formation of these disks. The observations of the star WD 0145+234 confirm the presence of silicate grains and suggest the presence of carbonates, indicating larger body collisions have contributed to the disk. This finding suggests that white dwarf debris disks may result from similar planetary systems as our own. Further analysis of the data is ongoing to determine the most useful future observations.

Discovery of 'Thermometer' Molecule on Exoplanet WASP-31b
astronomy2 years ago

Discovery of 'Thermometer' Molecule on Exoplanet WASP-31b

Astronomers have confirmed the presence of chromium hydride (CrH), a temperature-sensitive molecule, in the atmosphere of the hot Jupiter exoplanet WASP-31b. This marks the first detection of a metal hydride from a high-resolution exoplanet spectrum. Chromium hydride is abundant in a specific temperature range of 1,200 to 2,200 Kelvin, making it useful as a "thermometer" to determine the temperature and other characteristics of exoplanets. The discovery provides valuable insights into hot giant planet atmospheres and may encourage further research on metal hydrides in other exoplanets.