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Article Dans Une Revue Astronomy and Astrophysics - A&A Année : 2005

Is Sedna another Triton?

Résumé

90377 Sedna is, so far, the largest and most distant trans-neptunian object. It was observed at visible and near-infrared wavelengths using simultaneously two 8.2 m telescopes at the Very Large Telescope of the European Southern Observatory. The spectrum of Sedna suggests the presence on its surface of different ices (total abundance >50%). Its surface composition is different from that determined for other trans-neptunian objects, and apparently resembles that of Triton, particularly in terms of the possible presence of nitrogen and methane ices.
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hal-03786462 , version 1 (27-09-2022)

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Maria Antonella Barucci, Dale P. Cruikshank, Elisabetta Dotto, Frédéric Merlin, François Poulet, et al.. Is Sedna another Triton?. Astronomy and Astrophysics - A&A, 2005, 439, pp.L1-L4. ⟨10.1051/0004-6361:200500144⟩. ⟨hal-03786462⟩
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