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TNOs are cool: a survey of the Transneptunian Region

Müller, T.G. and Lellouch, E. and Böhnhardt, H and Stansberry, J. and Barucci, A and Crovisier, J. and Delsanti, A. and Doressoundiram, A. and Dotto, E. and Duffard, R. and Fornasier, S. and Groussin, O and Gutierrez, P.J. and Hainaut, O. and Harris, A.W. and Hartogh, P. and Hestroffer, D. and Horner, J. and Jewitt, D. and Kidger, M. and Kiss, C. and Lacerda, P. and Lara, L. and Lim, T and Mueller, M. and Moreno, R. and Ortiz, J.-L. and Rengel, M. and Santos-Sanz, P. and Swinyard, B. and Thomas, N. and Thirouin, A. and Trilling, D. (2009) TNOs are cool: a survey of the Transneptunian Region. Earth Moon and Planets, 105, pp. 209-219. Springer Netherlands . DOI: 10.1007/s11038-009-9307-x. ISSN 0167-9295.

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Official URL: http://www.springerlink.com/content/y5vv36l4l0h42j58


Over one thousand objects have so far been discovered orbiting beyond Neptune. These trans-Neptunian objects (TNOs) represent the primitive remnants of the planetesimal disk from which the planets formed and are perhaps analogous to the unseen dust parent-bodies in debris disks observed around other main-sequence stars. The dynamical and physical properties of these bodies provide unique and important constraints on formation and evolution models of the Solar System. While the dynamical architecture in this region (also known as the Kuiper Belt) is becoming relatively clear, the physical properties of the objects are still largely unexplored. In particular, fundamental parameters such as size, albedo, density and thermal properties are difficult to measure. Measurements of thermal emission, which peaks at far-IR wavelengths, offer the best means available to determine the physical properties. While Spitzer has provided some results, notably revealing a large albedo diversity in this population, the increased sensitivity of Herschel and its superior wavelength coverage should permit profound advances in the field. Within our accepted project we propose to perform radiometric measurements of 139 objects, including 25 known multiple systems. When combined with measurements of the dust population beyond Neptune (e.g. from the New Horizons mission to Pluto), our results will provide a benchmark for understanding the Solar debris disk, and extra-solar ones as well.

Document Type:Article
Title:TNOs are cool: a survey of the Transneptunian Region
AuthorsInstitution or Email of Authors
Müller, T.G.Max-Planck-Institut fuer Extraterrestrische Physik, Garching
Lellouch, E.Observatoire de Paris-Meudon, France
Böhnhardt, HMax-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau
Stansberry, J.University of Arizona, USA
Barucci, AObservatoire de Paris-Meudon, France
Crovisier, J.Observatoire de Paris-Meudon, France
Delsanti, A.Observatoire de Paris-Meudon, France
Doressoundiram, A.Observatoire de Paris-Meudon, France
Dotto, E.Osservatorio Astronomico di Roma, Italy
Duffard, R.IAA-CSIC, Granada, Spain
Fornasier, S.Observatoire de Paris-Meudon, France
Groussin, OLaboratoire d'Astrophysique de Marseille, France
Gutierrez, P.J.IAA-CSIC, Granada, Spain
Hainaut, O.ESO, Chile
Hartogh, P.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau
Hestroffer, D.Observatoire de Paris, France
Horner, J.Open University, Milton Keynes, UK
Jewitt, D.University of Hawaii, USA
Kidger, M.ESAC, Villafranca del Castillo, Spain
Kiss, C.Konkoly Observatory, Hungary
Lacerda, P.University of Hawaii, USA
Lara, L.IAA-CSIC, Granada, Spain
Lim, TRAL, Didcot, UK
Mueller, M.University of Arizona, USA
Moreno, R.Observatoire de Paris-Meudon, France
Ortiz, J.-L.IAA-CSIC, Granada, Spain
Rengel, M.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau
Santos-Sanz, P.IAA-CSIC, Granada, Spain
Swinyard, B.RAL, Didcot, UK
Thomas, N.University of Bern, Switzerland
Thirouin, A.IAA-CSIC, Granada, Spain
Trilling, D.University of Arizona, USA
Date:12 May 2009
Journal or Publication Title:Earth Moon and Planets
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 209-219
Publisher:Springer Netherlands
Keywords:Kuiper Belt, Infrared: solar system, Techniques: photometric
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Asteroiden und Kometen (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Prof. Alan Harris
Deposited On:26 Aug 2009 09:59
Last Modified:07 Feb 2013 19:40

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