TNOs are cool

A survey of the transneptunian region

Thomas G. Müller, Emmanuel Lellouch, Hermann Böhnhardt, John Stansberry, Antonella Barucci, Jacques Crovisier, Audrey Delsanti, Alain Doressoundiram, Elisabetta Dotto, René Duffard, Sonia Fornasier, Olivier Groussin, Pedro J. Gutiérrez, Olivier Hainaut, Alan W. Harris, Paul Hartogh, Daniel Hestroffer, Jonathan Horner, Dave Jewitt, Mark Kidger & 13 others Csaba Kiss, Pedro Lacerda, Luisa Lara, Tanya Lim, Michael Mueller, Raphael Moreno, Jose Luis Ortiz, Miriam Rengel, Pablo Santos-Sanz, Bruce Swinyard, Nicolas Thomas, Audrey Thirouin, David E Trilling

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)209-219
Number of pages11
JournalEarth, Moon and Planets
Volume105
Issue number2-4
DOIs
StatePublished - 2009

Fingerprint

trans-Neptunian objects
Neptune
physical property
Neptune (planet)
albedo
physical properties
debris
dust
wavelength
Pluto
New Horizons mission
planetesimal
parent body
Pluto (planet)
Kuiper belt
solar system
protoplanets
main sequence stars
thermal emission
planet

Keywords

  • Infrared: Solar system
  • Kuiper Belt
  • Techniques: Photometric

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Müller, T. G., Lellouch, E., Böhnhardt, H., Stansberry, J., Barucci, A., Crovisier, J., ... Trilling, D. E. (2009). TNOs are cool: A survey of the transneptunian region. Earth, Moon and Planets, 105(2-4), 209-219. https://doi.org/10.1007/s11038-009-9307-x

TNOs are cool : A survey of the transneptunian region. / 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 E.

In: Earth, Moon and Planets, Vol. 105, No. 2-4, 2009, p. 209-219.

Research output: Contribution to journalArticle

Müller, TG, Lellouch, E, Böhnhardt, H, Stansberry, J, Barucci, A, Crovisier, J, Delsanti, A, Doressoundiram, A, Dotto, E, Duffard, R, Fornasier, S, Groussin, O, Gutiérrez, PJ, Hainaut, O, Harris, AW, Hartogh, P, Hestroffer, D, Horner, J, Jewitt, D, Kidger, M, Kiss, C, Lacerda, P, Lara, L, Lim, T, Mueller, M, Moreno, R, Ortiz, JL, Rengel, M, Santos-Sanz, P, Swinyard, B, Thomas, N, Thirouin, A & Trilling, DE 2009, 'TNOs are cool: A survey of the transneptunian region', Earth, Moon and Planets, vol. 105, no. 2-4, pp. 209-219. https://doi.org/10.1007/s11038-009-9307-x
Müller TG, Lellouch E, Böhnhardt H, Stansberry J, Barucci A, Crovisier J et al. TNOs are cool: A survey of the transneptunian region. Earth, Moon and Planets. 2009;105(2-4):209-219. https://doi.org/10.1007/s11038-009-9307-x
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 E. / TNOs are cool : A survey of the transneptunian region. In: Earth, Moon and Planets. 2009 ; Vol. 105, No. 2-4. pp. 209-219.
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