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Herschel Open Time Key Programme: 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 Trilling, D. (2009) Herschel Open Time Key Programme: TNOs are cool: a survey of the Transneptunian Region. Icy Bodies in the Solar System, 03 Aug - 07 Aug 2009, Rio de Janeiro, Brazil.

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Abstract

Over one thousand objects have been discovered orbiting beyond Neptune. These trans-Neptunian objects (TNOs) represent the primitive remnants of the planetesimal disk from which the outer planets formed, and is an analog for 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 outer 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 only beginning to be revealed. In particular, fundamental parameters such as size, albedo, density and thermal properties are difficult to measure. Measurements of their thermal emission, which peaks at far-IR wavelengths, offer the best means available to determine those physical properties. While Spitzer has provided the first results, notably revealing a large albedo diversity in this population, the increased sensitivity of Herschel and its wavelength coverage will 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:Conference or Workshop Item (Poster)
Title:Herschel Open Time Key Programme: TNOs are cool: a survey of the Transneptunian Region
Authors:
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
Harris, A.W.UNSPECIFIED
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
Trilling, D.University of Arizona, USA
Date:August 2009
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Trans-Neptunian objects, Herschel Space Telescope, thermal emission
Event Title:Icy Bodies in the Solar System
Event Location:Rio de Janeiro, Brazil
Event Type:international Conference
Event Dates:03 Aug - 07 Aug 2009
Organizer:International Astronomical Union
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:09 Nov 2009 12:25
Last Modified:09 Nov 2009 12:25

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