Space and astronomy news
, the vast region at the edge of our Solar System populated by countless icy objects, is a treasure trove of scientific discoveries. The detection and characterization of, has led to a new understanding of the history of the Solar System. The disposition of KBOs is an indicator of gravitational currents that have shaped the Solar System and reveal a dynamic history of planetary migrations.
As Emery told Universe Today via email, these bodies are especially interesting to astronomers because of their size, orbits, and compositions. Other Trans-Neptunian bodies – like Pluto, Eris, Haumea, and Makemake – have all retained volatile ices on their surfaces . The one exception is Haumea, which lost its volatiles in a large impact .
Using data from Webb’s NIRSpec instrument, the team observed all three bodies in low-resolution prism mode at wavelengths spanning 0.7 to 5.2 micrometers – placing them all in the near-infrared spectrum. Additional observations were made of Quaoar from 0.97 to 3.16 ?m using medium-resolution gratings at ten times the spectral resolution.
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