A. Doressoundiram et al. 2003 The Astronomical Journal 125 2721 doi:10.1086/374632
A. Doressoundiram1, G. P. Tozzi2, M. A. Barucci1, H. Boehnhardt3, S. Fornasier4 and J. Romon1
Show affiliationsObservational results that are part of an ESO Large Programme dedicated to the characterization of the physical properties of trans-Neptunian objects and Centaurs are presented. We report observations related to the Centaur 2001 BL41 and two trans-Neptunian objects, (26181) 1996 GQ21 and (26375) 1999 DE9. We present results from broadband photometry (JHK filters) and low-dispersion infrared spectroscopy performed with ISAAC at the Very Large Telescope, in Chile. None of the spectra show evidence of absorption features—in particular, water ice features. We use a radiative transfer model to investigate the surface composition of these icy and primitive outer solar system bodies. We suggest models composed of geographical mixtures of organic compounds and minerals.
Kuiper Belt; minor planets, asteroids; techniques: photometric; techniques: spectroscopic
Issue 5 (2003 May)
Received 2003 January 3, accepted for publication 2003 February 5
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