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Article Dans Une Revue Astronomy and Astrophysics - A&A Année : 2004

Water ice on the surface of the large TNO 2004 DW

Résumé

We have obtained visible and near infrared spectra of the Trans Neptunian object 2004 DW, a few days after its discovery, at the Telescopio Nazionale Galileo (TNG). 2004 DW belongs to the plutino dynamical class and has an estimated diameter of about 1600 km, that makes it the largest known object, except Pluto, in the plutino and classical TNO populations. Our data clearly show the 1.5 and 2 mum bands associated to water ice, while the visible spectrum is nearly neutral and featureless. To interpret the available data we modelled the surface composition of 2004 DW with two different mixtures of organics (Titan tholin and kerogen), amorphous carbon and water ice.
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Dates et versions

hal-03732404 , version 1 (04-09-2022)

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Sonia Fornasier, Elisabetta Dotto, Maria Antonella Barucci, Cesare Barbieri. Water ice on the surface of the large TNO 2004 DW. Astronomy and Astrophysics - A&A, 2004, 422, pp.L43-L46. ⟨hal-03732404⟩
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