TNOs are Cool: A Survey of the Transneptunian Region

Autor: Müller, Thomas G., Lellouch, Emmanuel, Böhnhardt, Hermann, Stansberry, John, Barucci, Antonella, Crovisier, Jacques, Delsanti, Audrey, Doressoundiram, Alain, Dotto, Elisabetta, Duffard, René, Fornasier, Sonia, Groussin, Olivier, Gutiérrez, Pedro J., Hainaut, Olivier, Harris, Alan W., Hartogh, Paul, Hestroffer, Daniel, Horner, Jonathan, Jewitt, Dave, Kidger, Mark, Kiss, Csaba, Lacerda, Pedro, Lara, Luisa, Lim, Tanya, Mueller, Michael, Moreno, Raphael, Ortiz, Jose-Luis, Rengel, Miriam, Santos-Sanz, Pablo, Swinyard, Bruce, Thomas, Nicolas, Thirouin, Audrey, Trilling, David
Přispěvatelé: Max-Planck-Institut für Extraterrestriche Physik (MPE), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, University of Arizona, INAF-Osservatorio Astronomico di Roma (INAF-OAR), Instituto de Astrofisica de Andalucia, CSIC (IAA), Observatoire Astronomique de Marseille Provence (OAMP), Université de Provence - Aix-Marseille 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), European Southern Observatory, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Open University, Institute for Astronomy, University of Hawaii, European Space Astronomy Centre (ESAC), Agence Spatiale Européenne = European Space Agency (ESA), Konkoly Observatory, Research Center for Astronomy and Earth Sciences, Space Science and Technology Department, Science and Technology Facilities Council, University of Bern (UBERN), Department of Physics and Astronomy, Northern Arizona University, Flagstaff
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Zdroj: Earth, Moon, and Planets
Earth, Moon, and Planets, 2009, 105 (105), pp.209-219. ⟨10.1007/s11038-009-9307-x⟩
ISSN: 0167-9295
1573-0794
Popis: International audience; 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.
Databáze: OpenAIRE
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