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authIdHal_s : elenalega

On the relationship between fast lyapunov indicator and periodic orbits for symplectic mappings.

Elena Lega , Claude Froeschlé
Celestial Mechanics and Dynamical Astronomy, 2001, 81 (1/2), pp.129-147. ⟨10.1023/A:1013323507265⟩
Journal articles istex hal-03025552v1

On the Relationship Between Fast Lyapunov Indicator and Periodic Orbits for Continuous Flows.

Marc Fouchard , Elena Lega , Christiane Froeschlé , Claude Froeschlé
Celestial Mechanics and Dynamical Astronomy, 2002, 83 (1/4), pp.205-222. ⟨10.1023/A:1020199201070⟩
Journal articles istex hal-03252731v1

Geometric chaos indicators and computations of the spherical hypertube manifolds of the spatial circular restricted three-body problem

Massimiliano Guzzo , Elena Lega
Physica D: Nonlinear Phenomena, 2018, 373, pp.38-58. ⟨10.1016/j.physd.2018.02.003⟩
Journal articles hal-02308102v1

Dissipative and weakly dissipative regimes in nearly-integrable mappings

A. Celletti , Cl. Froeschlé , E. Lega
Discrete and Continuous Dynamical Systems - Series S, 2006, 16, pp.757-781
Journal articles hal-00388225v1

Numerical investigations of the structure around an invariant KAM torus using the frequency map analysis

Elena Lega , Claude Froeschlé
Physica D: Nonlinear Phenomena, 1996, 95 (2), pp.97-106. ⟨10.1016/0167-2789(96)00046-2⟩
Journal articles istex hal-03025123v1

Early dynamical instabilities in the giant planet systems

Elena Lega , A. Morbidelli , D. Nesvorný
Monthly Notices of the Royal Astronomical Society, 2013, 431 (4), pp.3494-3500. ⟨10.1093/mnras/stt431⟩
Journal articles hal-03025476v1

Analysis of the Chaotic Behaviour of Orbits Diffusing along the Arnold Web

Cl. Froeschlé , E. Lega , M. Guzzo
Celestial Mechanics and Dynamical Astronomy, 2006, 95, pp.141-153. ⟨10.1007/s10569-006-9004-2⟩
Journal articles istex hal-00388611v1

A numerical study of the hyperbolic manifolds in a priori unstable systems. A comparison with Melnikov approximations

E. Lega , M. Guzzo , Cl. Froeschlé
Celestial Mechanics and Dynamical Astronomy, 2010, 107, pp.115-127. ⟨10.1007/s10569-010-9265-7⟩
Journal articles istex hal-00536426v1

Local And Global Diffusion Along Resonant Lines in Discrete Quasi-integrable Dynamical Systems

Cl. Froeschlé , M. Guzzo , E. Lega
Celestial Mechanics and Dynamical Astronomy, 2005, 92, pp.243-255. ⟨10.1007/s10569-004-3834-6⟩
Journal articles istex hal-00388271v1

A numerical study of the stabilization effect of steepness

N. Todorovic , M. Guzzo , E. Lega , Cl. Froeschlé
Celestial Mechanics and Dynamical Astronomy, 2011, 110, pp.389-398. ⟨10.1007/s10569-011-9369-8⟩
Journal articles istex hal-00632688v1

Reduced gas accretion on super-Earths and ice giants

M. Lambrechts , Elena Lega
Astronomy and Astrophysics - A&A, 2017, 606, pp.A146. ⟨10.1051/0004-6361/201731014⟩
Journal articles hal-03025417v1
Image document

Fossilized condensation lines in the Solar System protoplanetary disk

A. Morbidelli , B. Bitsch , A. Crida , M. Gounelle , T. Guillot , et al.
Icarus, 2016, 267, pp.368-376. ⟨10.1016/j.icarus.2015.11.027⟩
Journal articles hal-01281744v1

Meridional circulation of gas into gaps opened by giant planets in three-dimensional low-viscosity disks

A. Morbidelli , J. Szulágyi , A. Crida , Elena Lega , B. Bitsch , et al.
Icarus, 2014, 232, pp.266-270. ⟨10.1016/j.icarus.2014.01.010⟩
Journal articles hal-03252748v1

Stellar irradiated discs and implications on migration of embedded planets

Bertram Bitsch , Alessandro Morbidelli , Elena Lega , Aurélien Crida
Astronomy and Astrophysics - A&A, 2014, 564, pp.A135. ⟨10.1051/0004-6361/201323007⟩
Journal articles hal-03252746v1
Image document

A numerical study of the topology of normally hyperbolic invariant manifolds supporting Arnold diffusion in quasi--integrable systems.

Massimiliano Guzzo , Elena Lega , Claude Froeschle
2009
Preprints, Working Papers, ... insu-00186175v2

Highly inclined and eccentric massive planets

B. Bitsch , A. Crida , A.-S. Libert , E. Lega
Astronomy and Astrophysics - A&A, 2013, 555, pp.A124. ⟨10.1051/0004-6361/201220310⟩
Journal articles hal-02531566v1

Frequency analysis of the stability of asteroids in the framework of the restricted three-body problem

Alessandra Celletti , Claude Froeschlé , Elena Lega
Celestial Mechanics and Dynamical Astronomy, 2004, 90 (3-4), pp.245-266. ⟨10.1007/s10569-004-0552-z⟩
Journal articles istex hal-03252737v1

On the Structure of Symplectic Mappings. The Fast Lyapunov Indicator: a Very Sensitive Tool.

Claude Froeschlé , Elena Lega
Celestial Mechanics and Dynamical Astronomy, 2000, 78 (1/4), pp.167-195. ⟨10.1023/A:1011141018230⟩
Journal articles istex hal-03025534v1

Transition spectra of dynamical systems

G. Contopoulos , N. Voglis , C. Efthymiopoulos , C. Froeschlé , R. Gonczi , et al.
Celestial Mechanics and Dynamical Astronomy, 1997, 67 (4), pp.293-317. ⟨10.1023/A:1008275829979⟩
Journal articles istex hal-03252712v1

Three-dimensional representations of the tube manifolds of the planar restricted three-body problem

Elena Lega , Massimiliano Guzzo
Physica D: Nonlinear Phenomena, 2016, 325, pp.41-52. ⟨10.1016/j.physd.2016.02.012⟩
Journal articles hal-03025502v1

The Nekhoroshev theorem and the observation of long-term diffusion in Hamiltonian systems

Massimiliano Guzzo , Elena Lega
Regular and Chaotic Dynamics, 2016, 21 (6), pp.707-719. ⟨10.1134/S1560354716060101⟩
Journal articles hal-03025594v1

First numerical investigation of a conjecture by N. N. Nekhoroshev about stability in quasi-integrable systems.

M. Guzzo , E. Lega , Cl. Froeschlé
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2011, 21 Issue 3 (12 pages), pp.033101. ⟨10.1063/1.3603819⟩
Journal articles hal-00632654v1
Image document

A study of the past dynamics of comet 67P/Churyumov-Gerasimenko with fast Lyapunov indicators

Massimiliano Guzzo , Elena Lega
Astronomy and Astrophysics - A&A, 2015, 579, pp.A79. ⟨10.1051/0004-6361/201525878⟩
Journal articles hal-03025213v1

Migration of Earth-sized planets in 3D radiative discs

Elena Lega , A. Crida , B. Bitsch , A. Morbidelli
Monthly Notices of the Royal Astronomical Society, 2014, 440 (1), pp.683-695. ⟨10.1093/mnras/stu304⟩
Journal articles hal-03025480v1

Detection of Arnold diffusion in Hamiltonian systems

Elena Lega , Massimiliano Guzzo , Claude Froeschlé
Physica D: Nonlinear Phenomena, 2003, 182 (3-4), pp.179-187. ⟨10.1016/S0167-2789(03)00121-0⟩
Journal articles istex hal-03025497v1

Wavelets and the study of the distant Universe

A. Bijaoui , E. Slezak , F. Rue , Elena Lega
Proceedings of the IEEE, 1996, 84 (4), pp.670-679. ⟨10.1109/5.488706⟩
Journal articles hal-03252672v1

On the measure of the structure around the last kam torus before and after its break-up

Alessandra Celletti , Claude Froeschlé , C. Froeschl� , Elena Lega
Celestial Mechanics and Dynamical Astronomy, 1996, 64 (1-2), pp.21-31. ⟨10.1007/BF00051602⟩
Journal articles istex hal-03252702v1

Global Symplectic Polynomial Approximation of Area-Preserving Maps

C. Froeschle , Elena Lega
Journal of Difference Equations and Applications, 1997, 3 (2), pp.59-315. ⟨10.1080/10236199708808093⟩
Journal articles hal-03252721v1

Twist angles: a method for distinguishing islands, tori and weak chaotic orbits. Comparison with other methods of analysis

Elena Lega , C. Froeschle
Astronomy and Astrophysics - A&A, 1998
Journal articles hal-03252723v1
Image document

Global 3D radiation-hydrodynamic simulations of gas accretion: Opacity-dependent growth of Saturn-mass planets

M. Schulik , A. Johansen , B. Bitsch , Elena Lega
Astronomy and Astrophysics - A&A, 2019, 632, pp.A118. ⟨10.1051/0004-6361/201935473⟩
Journal articles hal-03025383v1