Title :

Order statistics and heavy-tail distributions for planetary perturbations on Oort cloud comets

Author(s) :

Stoica, Radu [Auteur]
Laboratoire Paul Painlevé - UMR 8524 [LPP]
Liu, Shuyan [Auteur]
Laboratoire Paul Painlevé - UMR 8524 [LPP]
Davydov, Youri [Auteur]
Laboratoire Paul Painlevé - UMR 8524 [LPP]
Fouchard, Marc [Auteur]
Institut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
Laboratoire d'Astronomie de Lille [LAL]
Vienne, Alain [Auteur]
Institut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
Laboratoire d'Astronomie de Lille [LAL]
Valsecchi, Giovanni [Auteur]
Istituto di Astrofisica Spaziale e Fisica cosmica - Roma [IASF-Roma]

Journal title :

Astronomy and Astrophysics - A&A

Pages :

9 pages

Publisher :

EDP Sciences

Publication date :

2010-04-15

ISSN :

0004-6361

English keyword(s) :

methods statistical
celestial mechanics
Oort Cloud

HAL domain(s) :

Mathématiques [math]/Statistiques [math.ST]
Statistiques [stat]/Théorie [stat.TH]
Planète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]
Physique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP]

English abstract : [en]

This paper tackles important aspects of comets dynamics from a statistical point of view. Existing methodology uses numerical integration for computing planetary perturbations for simulating such dynamics. This operation ...
Show more >This paper tackles important aspects of comets dynamics from a statistical point of view. Existing methodology uses numerical integration for computing planetary perturbations for simulating such dynamics. This operation is highly computational. It is reasonable to wonder whenever statistical simulation of the perturbations can be much more easy to handle. The first step for answering such a question is to provide a statistical study of these perturbations in order to catch their main features. The statistical tools used are order statistics and heavy tail distributions. The study carried out indicated a general pattern exhibited by the perturbations around the orbits of the important planet. These characteristics were validated through statistical testing and a theoretical study based on Opik theory.Show less >

Language :

Anglais

Popular science :

Non

Comment :

9 pages, 12 figures

Collections :

• Laboratoire Paul Painlevé - UMR 8524

Source :

Harvested from HAL