Direct observations of asteroid interior and regolith structure: Science measurement requirements

A. Herique, B. Agnus, E. Asphaug, A. Barucci, P. Beck, J. Bellerose, J. Biele, L. Bonal, P. Bousquet, L. Bruzzone, C. Buck, I. Carnelli, A. Cheng, V. Ciarletti, M. Delbo, J. Du, X. Du, C. Eyraud, W. Fa, J. Gil Fernandez & 38 others O. Gassot, R. Granados-Alfaro, S. F. Green, B. Grieger, J. T. Grundmann, J. Grygorczuk, R. Hahnel, E. Heggy, T. M. Ho, O. Karatekin, Y. Kasaba, T. Kobayashi, W. Kofman, C. Krause, A. Kumamoto, M. Küppers, M. Laabs, C. Lange, J. Lasue, A. C. Levasseur-Regourd, A. Mallet, P. Michel, S. Mottola, N. Murdoch, M. Mütze, J. Oberst, R. Orosei, D. Plettemeier, S. Rochat, R. RodriguezSuquet, Y. Rogez, P. Schaffer, C. Snodgrass, J. C. Souyris, M. Tokarz, S. Ulamec, J. E. Wahlund, S. Zine

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Our knowledge of the internal structure of asteroids is, so far, indirect - relying entirely on inferences from remote sensing observations of the surface, and theoretical modeling of formation and evolution. What are the bulk properties of the regolith and deep interior? And what are the physical processes that shape asteroid internal structures? Is the composition and size distribution observed on the surface representative of the bulk? These questions are crucial to understand small bodies' history from accretion in the early Solar System to the present, and direct measurements are needed to answer these questions for the benefit of science as well as for planetary defense or exploration.Radar is one of the main instruments capable of sounding asteroids to characterize internal structure from sub-meter to global scale. In this paper, we review the science case for direct observation of the deep internal structure and regolith of a rocky asteroid of kilometer size or smaller. We establish the requirements and model dielectric properties of asteroids to outline a possible instrument suite, and highlight the capabilities of radar instrumentation to achieve these observations. We then review the expected science return including secondary objectives contributing to the determination of the gravitational field, the shape model, and the dynamical state. This work is largely inherited from MarcoPolo-R and AIDA/AIM studies.

Original languageEnglish (US)
JournalAdvances in Space Research
DOIs
StateAccepted/In press - Jan 1 2017

Fingerprint

Asteroids
regolith
asteroids
asteroid
requirements
radar
Radar
dielectric property
Solar system
sounding
inference
solar system
Dielectric properties
gravitational fields
instrumentation
dielectric properties
remote sensing
Remote sensing
accretion
science

Keywords

  • Asteroid deep internal structure
  • Asteroid regolith
  • Dielectric properties
  • Near-earth asteroid
  • Radar tomography

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Herique, A., Agnus, B., Asphaug, E., Barucci, A., Beck, P., Bellerose, J., ... Zine, S. (Accepted/In press). Direct observations of asteroid interior and regolith structure: Science measurement requirements. Advances in Space Research. https://doi.org/10.1016/j.asr.2017.10.020

Direct observations of asteroid interior and regolith structure : Science measurement requirements. / Herique, A.; Agnus, B.; Asphaug, E.; Barucci, A.; Beck, P.; Bellerose, J.; Biele, J.; Bonal, L.; Bousquet, P.; Bruzzone, L.; Buck, C.; Carnelli, I.; Cheng, A.; Ciarletti, V.; Delbo, M.; Du, J.; Du, X.; Eyraud, C.; Fa, W.; Gil Fernandez, J.; Gassot, O.; Granados-Alfaro, R.; Green, S. F.; Grieger, B.; Grundmann, J. T.; Grygorczuk, J.; Hahnel, R.; Heggy, E.; Ho, T. M.; Karatekin, O.; Kasaba, Y.; Kobayashi, T.; Kofman, W.; Krause, C.; Kumamoto, A.; Küppers, M.; Laabs, M.; Lange, C.; Lasue, J.; Levasseur-Regourd, A. C.; Mallet, A.; Michel, P.; Mottola, S.; Murdoch, N.; Mütze, M.; Oberst, J.; Orosei, R.; Plettemeier, D.; Rochat, S.; RodriguezSuquet, R.; Rogez, Y.; Schaffer, P.; Snodgrass, C.; Souyris, J. C.; Tokarz, M.; Ulamec, S.; Wahlund, J. E.; Zine, S.

In: Advances in Space Research, 01.01.2017.

Research output: Contribution to journalArticle

Herique, A, Agnus, B, Asphaug, E, Barucci, A, Beck, P, Bellerose, J, Biele, J, Bonal, L, Bousquet, P, Bruzzone, L, Buck, C, Carnelli, I, Cheng, A, Ciarletti, V, Delbo, M, Du, J, Du, X, Eyraud, C, Fa, W, Gil Fernandez, J, Gassot, O, Granados-Alfaro, R, Green, SF, Grieger, B, Grundmann, JT, Grygorczuk, J, Hahnel, R, Heggy, E, Ho, TM, Karatekin, O, Kasaba, Y, Kobayashi, T, Kofman, W, Krause, C, Kumamoto, A, Küppers, M, Laabs, M, Lange, C, Lasue, J, Levasseur-Regourd, AC, Mallet, A, Michel, P, Mottola, S, Murdoch, N, Mütze, M, Oberst, J, Orosei, R, Plettemeier, D, Rochat, S, RodriguezSuquet, R, Rogez, Y, Schaffer, P, Snodgrass, C, Souyris, JC, Tokarz, M, Ulamec, S, Wahlund, JE & Zine, S 2017, 'Direct observations of asteroid interior and regolith structure: Science measurement requirements' Advances in Space Research. https://doi.org/10.1016/j.asr.2017.10.020
Herique, A. ; Agnus, B. ; Asphaug, E. ; Barucci, A. ; Beck, P. ; Bellerose, J. ; Biele, J. ; Bonal, L. ; Bousquet, P. ; Bruzzone, L. ; Buck, C. ; Carnelli, I. ; Cheng, A. ; Ciarletti, V. ; Delbo, M. ; Du, J. ; Du, X. ; Eyraud, C. ; Fa, W. ; Gil Fernandez, J. ; Gassot, O. ; Granados-Alfaro, R. ; Green, S. F. ; Grieger, B. ; Grundmann, J. T. ; Grygorczuk, J. ; Hahnel, R. ; Heggy, E. ; Ho, T. M. ; Karatekin, O. ; Kasaba, Y. ; Kobayashi, T. ; Kofman, W. ; Krause, C. ; Kumamoto, A. ; Küppers, M. ; Laabs, M. ; Lange, C. ; Lasue, J. ; Levasseur-Regourd, A. C. ; Mallet, A. ; Michel, P. ; Mottola, S. ; Murdoch, N. ; Mütze, M. ; Oberst, J. ; Orosei, R. ; Plettemeier, D. ; Rochat, S. ; RodriguezSuquet, R. ; Rogez, Y. ; Schaffer, P. ; Snodgrass, C. ; Souyris, J. C. ; Tokarz, M. ; Ulamec, S. ; Wahlund, J. E. ; Zine, S. / Direct observations of asteroid interior and regolith structure : Science measurement requirements. In: Advances in Space Research. 2017.
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AU - Asphaug, E.

AU - Barucci, A.

AU - Beck, P.

AU - Bellerose, J.

AU - Biele, J.

AU - Bonal, L.

AU - Bousquet, P.

AU - Bruzzone, L.

AU - Buck, C.

AU - Carnelli, I.

AU - Cheng, A.

AU - Ciarletti, V.

AU - Delbo, M.

AU - Du, J.

AU - Du, X.

AU - Eyraud, C.

AU - Fa, W.

AU - Gil Fernandez, J.

AU - Gassot, O.

AU - Granados-Alfaro, R.

AU - Green, S. F.

AU - Grieger, B.

AU - Grundmann, J. T.

AU - Grygorczuk, J.

AU - Hahnel, R.

AU - Heggy, E.

AU - Ho, T. M.

AU - Karatekin, O.

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AU - Kobayashi, T.

AU - Kofman, W.

AU - Krause, C.

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AU - Lange, C.

AU - Lasue, J.

AU - Levasseur-Regourd, A. C.

AU - Mallet, A.

AU - Michel, P.

AU - Mottola, S.

AU - Murdoch, N.

AU - Mütze, M.

AU - Oberst, J.

AU - Orosei, R.

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