PEGASE

Planetology and
Environments from
Ground
Astrometry and
Space
Exploration

Presentation

The PEGASE team is composed of astronomers, professors, PhD students and postdoctorates working on the problematics related to the dynamics of the solar system objects, from the terrestrial environment to the Trans-Neptunian objects. PEGASE brings together astronomical observers, celestial mechanics theorists, specialists in numerical modeling, experts in the dynamics of natural satellites, artificial satellites, space debris, asteroids, meteors and planet formation.

Research activities

Our problematics

Resources

  • Numerical modeling : N-Body codes, hydrodynamical codes, statistical approaches, frequency analysis, analytical developments, perturbation methods
  • Ground observations : Gaia-FUN-SSO network, NAROO, Mutual Phenomenons, Meteor networks, OHP, Subaru
  • Airborne based observations : 2007 Aurigids, 2008 Quadrantids, 2008 ATV reentry, 2011 Draconids
  • Space observations : CASSINI, Gaia, HST, JWS, JUICE, Mars Express, PLATO, Spitzer...
  • Objects of interest : Asteroids, natural satellites, planets and rings, comets, NEO, artificial satellites, space debris, exoplanetary systems

The team

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The PEGASE team at Lille Observatory.

Affiliated

Former PhD students and postdoctorates

  • Nilton Araújo (UNESP, Guaratingueta, Sao Paulo) : "Um estudo de objetos perturbados e capturados pela ressonância de corrotação e Lindblad" / "A study of objects disturbed and captured by corotation and Lindblad resonance" (PhD def. 07/07/2017)
  • Jérôme Daquin : "Essais sur le mouvement résonant à long terme des débris spatiaux" (PhD def. 12/10/2015)
  • Josselin Desmars (Observatoire de Paris, LESIA)
  • Siegfied Eggl (JPL/NASA, Pasadena)
  • Fatoumata Kébé: "Etude de l’influence des incréments de vitesse impulsionnels sur les trajectoires de débris spatiaux" (PhD def. 12/06/2016)
  • Irina Kovalenko (IKI, Moscou): "Caractérisation orbitale et physique des astéroïdes binaires" (PhD def. 09/28/2016)
  • Maria Kudryashova
  • Shanna Li: "A new reduction of the old observations of Phoebe and the orbit update" (PhD def. 09/23/2016)
  • Bruno Morgado (Observatório Nacional do Brasil)
  • Altair Ramos Gomes (Observatório Nacional do Brasil)
  • Melaine Saillenfest (IMCCE - ASD): "Théories séculaires et dynamique orbitale au-delà de Neptune" (PhD def. 07/03/2017)
  • Éléonore Saquet: "Photométrie et Astrométrie des Satellites de Jupiter : Application à la campagne de phénomènes mutuels 2015" (PhD def. 09/26/2017)

Working groups

Science highlights

Software and database

  • CAVIAR: CAssini Visual Image Analysis Release
  • STELA : Semi-analytical Tool for End-of-Life Analysis (CNES)
  • DynastVO: Virtual Observatory orbital asteroid database
  • NSDB: Natural Satellites DataBase
  • Multisat: Natural satellites online ephemerides

Last update Monday 26 February 2018