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Nature Astronomy (5)

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Thermal evolution of trans-Neptunian objects through observations of Centaurs with JWST

JWST/NIRSpec spectra are used to analyse the surfaces of Centaurs, revealing two main compositions: those with refractory materials and water ice and those rich in carbon-based materials. Strong surface weathering due to thermal processing may be responsible.

Javier Licandro
Noemí Pinilla-Alonso
Ian Wong
Research19 Dec 2024
Nature Astronomy

Volume: 9, P: 245-251
Widespread CO₂ and CO ices in the trans-Neptunian population revealed by JWST/DiSCo-TNOs

The near-infrared spectrometer onboard JWST has detected CO₂ and CO ices on 56 and 29 trans-Neptunian objects, respectively, indicating two dominant compositional types among them. These compositional differences suggest varied formation regions in the protoplanetary disk.

Mário N. De Prá
Elsa Hénault
Joshua P. Emery
Research22 May 2024
Nature Astronomy

Volume: 9, P: 252-261
A JWST/DiSCo-TNOs portrait of the primordial Solar System through its trans-Neptunian objects

The icy surface compositions, as revealed by JWST, of small bodies beyond the orbit of Neptune can be classified into three groups that can be related to the ice retention lines in the early Solar System, possibly before the planets migrated.

Noemí Pinilla-Alonso
Rosario Brunetto
Ian Wong
Research19 Dec 2024
Nature Astronomy

Volume: 9, P: 230-244
Spitzer’s Solar System studies of comets, centaurs and Kuiper belt objects

In the Spitzer Space Telescope’s 16 years of operation, it observed many Solar System objects and environments. In this first Review Article of a pair, Spitzer’s insights into comets, centaurs and Kuiper belt objects—all remnants of the Solar System’s formation—are summarized.

Carey Lisse
James Bauer
Charles Woodward
Reviews08 Oct 2020
Nature Astronomy

Volume: 4, P: 930-939
Spitzer’s Solar System studies of asteroids, planets and the zodiacal cloud

In the Spitzer Space Telescope’s 16 years of operation, it observed many Solar System objects and environments. In this second Review Article of a pair, Spitzer’s insight into asteroids, dust clouds and rings and the ice giant planets are summarized.

David E. Trilling
Carey Lisse
Anne Verbiscer
Reviews08 Oct 2020
Nature Astronomy

Volume: 4, P: 940-946