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AMD-stability and the classification of planetary systems | | Jacques Laskar
; Antoine Petit
; | | Date: |
21 Mar 2017 | | Abstract: | We present here in full detail the evolution of the angular momentum deficit
(AMD) during collisions as it was described in citep{Laskar2000}. Since then,
the AMD has been revealed to be a key parameter for the understanding of the
outcome of planetary formation models. We define here the AMD-stability
criterion that can be easily verified on a newly discovered planetary system.
We show how AMD-stability can be used to establish a classification of the
multiplanet systems in order to exhibit the planetary systems that are
long-term stable because they are AMD-stable, and those that are AMD-unstable
which then require some additional dynamical studies to conclude on their
stability. LEt{ I would not use a hyphen in these cases: AMD stability, AMD
stable, AMD unstable. If the acronym is spelled out you would not use a hyphen
(angular momentum deficit stability) so I don’t think one should be used in the
short form. You have been consistent, however, so I have not changed them. Your
choice// below: if exoplanet.eu is a URL it should go in a footnote. } The
AMD-stability classification is applied to the 131 multiplanet systems from The
Extrasolar Planet Encyclopaedia database (exoplanet.eu) for which the orbital
elements are sufficiently well known. | | Source: | arXiv, 1703.7125 | | Services: | Forum | Review | PDF | Favorites | |
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