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Surface properties of icy transneptunian objects from the second ESO large program

Published online by Cambridge University Press:  06 April 2010

Francesca E. DeMeo ,
Maria Antonietta Barucci ,
Alvaro Alvarez-Candal ,
Catherine de Bergh ,
Sonia Fornasier ,
Frédéric Merlin ,
Davide Perna  and
Irina Belskaya
Francesca E. DeMeo
Affiliation:
LESIA, Observatoire de Paris, 5, Place Jules Janssen, 92195 Meudon Cedex, France email: francesca.demeo@obspm.fr
Maria Antonietta Barucci
Affiliation:
LESIA, Observatoire de Paris, 5, Place Jules Janssen, 92195 Meudon Cedex, France email: francesca.demeo@obspm.fr
Alvaro Alvarez-Candal
Affiliation:
European Southern Observatory, Alonso de Cordova 3107, Santiago, Chile
Catherine de Bergh
Affiliation:
LESIA, Observatoire de Paris, 5, Place Jules Janssen, 92195 Meudon Cedex, France email: francesca.demeo@obspm.fr
Sonia Fornasier
Affiliation:
LESIA, Observatoire de Paris, 5, Place Jules Janssen, 92195 Meudon Cedex, France email: francesca.demeo@obspm.fr Université de Paris 7 Denis Diderot, Paris, France
Frédéric Merlin
Affiliation:
Department of Astronomy, University of Maryland, College Park, MD 20742, USA
Davide Perna
Affiliation:
LESIA, Observatoire de Paris, 5, Place Jules Janssen, 92195 Meudon Cedex, France email: francesca.demeo@obspm.fr INAF- Osservatorio Astronomico di Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, I-00133 Roma, Italy
Irina Belskaya
Affiliation:
LESIA, Observatoire de Paris, 5, Place Jules Janssen, 92195 Meudon Cedex, France email: francesca.demeo@obspm.fr Institute of Astronomy, Kharkiv National University, 35 Sumska str., 61022 Kharkiv, Ukraine
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Abstract

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An analysis is well underway for the data from the second Large Program (PI M. A. Barucci) dedicated to investigating the surface properties of Centaurs and Transneptunian objects through spectroscopic, photometric color, lightcurve, and polarimetric observations using the European Southern Observatory (ESO) Very Large Telescope (VLT) and New Technology Telescope (NTT). 45 objects were observed between 2006 and 2008, allowing a broad characterization of at least the largest and brightest objects among this population. In this report, we summarize all our findings, but focus on the analysis of the presence of ices such as methane, ethane, nitrogen, ammonia hydrate, methanol, and particularly H2O which is so abundant throughout the outer solar system.

Keywords

Kuiper Belttechniques: spectroscopictechniques: photometrictechniques: polarimetric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S263: Icy Bodies of the Solar System , August 2009 , pp. 186 - 191
Copyright
Copyright © International Astronomical Union 2010

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