WISE0855 Archives

The MIRI/MRS (this work), NIRspec/PRISM and NIRSpec/G395M Luhman et al. (2024) spectrum of WISE 0855 from 0.8 to 22 µm. Panel a) shows the NIRspec/PRISM data in red and panel from 0.8 to 2.2µm b) the NIRspec/G395M in green and MIRI/MRS data in blue from 2.2 to 22 µm. Insets c) and d) show the overlap between the three data sets from 3.5 to 5.4 µm and the ammonia feature from 8.0 to 13.0 µm, respectively. The most dominant absorbing species are presented above the spectrum in various colors. For better visualization he data was binned to a resolution of R = 1000 for MIRI/MRS and NIRSpec/G395M and R = 100 for NIRSpec/PRISM. -- astro-ph.EP

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

Water Depletion and 15NH3 in the Atmosphere of the Coldest Brown Dwarf Observed With JWST/MIRI

by Keith CowingOctober 17, 2024October 17, 2024

With a temperature of ∼285 K WISE0855 is the coldest brown dwarf observed so far. Using the James Webb Space Telescope (JWST) we obtained observations that allow us to characterize […]

WISE0855

Water Depletion and 15NH3 in the Atmosphere of the Coldest Brown Dwarf Observed With JWST/MIRI

Determining The “Biosignature Threshold” For Life Detection On Biotic, Abiotic, or Prebiotic Worlds.

Icy Ocean Planet Research: NASA ROSES-25 Amendment 71: New Opportunity A.16 Cryosphere

Global Carbon Fixation In Earth’s Subsurface Biosphere

tinyRNA-seq: An Optimized Approach To Sequencing Tiny RNAs And Primitive RNA Genomes

Stellar Flares Rather Than High Tint As Possible Cause For the Missing Methane In Young Exoplanets: The Case Study of V1298-Tau b