Near-Infrared Spectroscopy of Centaurs and Irregular Satellites

Details Near-Infrared Spectroscopy of Centaurs and Irregular Satellites Near-Infrared Spectroscopy of Centaurs and Irregular Satellites

Feb 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aj....119..977b&link_type=abstract

The Astronomical Journal, Volume 119, Issue 2, pp. 977-983.

Astronomy and Astrophysics

Astronomy

51

Kuiper Belt, Oort Cloud, Minor Planets, Asteroids, Planets And Satellites: Individual (Elara, Himalia, Nereid, Pasaphae, Phoebe)

Scientific paper

We have obtained near-infrared spectra of the four brightest known Centaurs and of five irregular satellites of giant planets. Many of these objects show 1.5 and 2.0 μm absorption bands indicative of water ice, including 1997 CU26, Pholus, Phoebe (S9), and Nereid (N2). The satellites of Jupiter-Elara, Himalia, and Pasaphae (J6, J7, J8)-appear spectrally featureless, consistent with asteroidal origins for these bodies. Phoebe's surface water ice indicates that it formed as an icy planetesimal rather than as an asteroid.

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