8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR525 papers
- Observatoire de ParisFR400 papers
- Sorbonne UniversitéFR291 papers
- Université Paris Sciences et LettresFR239 papers
- Université Pierre-et-Marie-CurieFR129 papers
- Observatoire de la Côte d’AzurFR126 papers
- University of GenevaCH125 papers
- Université de LilleFR117 papers
- University of LiègeBE116 papers
- Institut d'Astrophysique de ParisFR110 papers
- Université Paris CitéFR108 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR107 papers
37 papers · 1 filter
Andrade rheology in time-domain. Application to Enceladus' dissipation of energy due to forced libration
Yeva Gevorgyan, Gwenaël Boué, Clodoaldo Ragazzo +2
The main purpose of this work is to present a time-domain implementation of the Andrade rheology, instead of the traditional expansion in terms of a Fourier series of the tidal pot…
(704) Interamnia: A transitional object between a dwarf planet and a typical irregular-shaped minor body
J. Hanuš, P. Vernazza, M. Viikinkoski +56
With an estimated diameter in the 320 to 350 km range, (704) Interamnia is the fifth largest main belt asteroid and one of the few bodies that fills the gap in size between the fou…
A little tour across the wonderful realm of meteor radiometry
Jean-Louis Rault, François Colas
This paper describes the path strewn with pitfalls encountered during the development of a large dynamic range and very fast radiometer designed to precisely observe the meteor lig…
The first observed stellar occultations by the irregular satellite (Saturn IX) Phoebe and improved rotational period
A. R. Gomes-Júnior, M. Assafin, F. Braga-Ribas +24
We report six stellar occultations by (Saturn IX) Phoebe, an irregular satellite of Saturn, obtained between mid-2017 and mid-2019. The 2017 July 06 event is the first stellar occu…
ESA Voyage 2050 white paper -- Faint objects in motion: the new frontier of high precision astrometry
F. Malbet, U. Abbas, J. Alves +28
Sky survey telescopes and powerful targeted telescopes play complementary roles in astronomy. In order to investigate the nature and characteristics of the motions of very faint ob…
Lambert's theorem and projective dynamics
Alain Albouy, Lei Zhao
We prove that the classical Lambert theorem about the elapsed time on an arc of Keplerian orbit extends without change to the Kepler problem on a space of constant curvature. We pr…
The trans-Neptunian object (84922) 2003 VS2 through stellar occultations
Gustavo Benedetti-Rossi, P. Santos-Sanz, J. L. Ortiz +50
We present results from three world-wide campaigns that resulted in the detections of two single-chord and one multi-chord stellar occultations by the Plutino object (84922) 2003~V…
Chaos in the inert Oort cloud
Melaine Saillenfest, Marc Fouchard, Takashi Ito +1
Context: Distant trans-Neptunian objects are subject to planetary perturbations and galactic tides. The former decrease with the distance, while the latter increase. In the interme…
Trace estimation of a family of periodic Sturm-Liouville operators with application to Robe's restricted three-body problem
Qinglong Zhou
In this paper, we consider a family of Sturm-Liouville operators on the -periodic domain. The bifurcation with respect to the parameter region is studied, and the elliptic regio…
Voyage 2050 White Paper: All-Sky Visible and Near Infrared Space Astrometry
David Hobbs, Anthony Brown, Erik Høg +27
A new all-sky visible and Near-InfraRed (NIR) space astrometry mission with a wavelength cutoff in the K-band is not just focused on a single or small number of key science cases.…
Active asteroid (6478) Gault: a blue Q-type surface below the dust?
Michael Marsset, Francesca DeMeo, Adrian Sonka +6
We present near-infrared spectroscopy of the sporadically active asteroid (6478) Gault collected on the 3 m NASA/Infrared Telescope Facility observatory in late 2019 March/early Ap…
Nearly Polar orbit of the sub-Neptune HD3167 c: Constraints on a multi-planet system dynamical history
Shweta Dalal, Guillaume Hébrard, Alain Lecavelier des Étangs +5
We present the obliquity measurement, that is, the angle between the normal angle of the orbital plane and the stellar spin axis, of the sub-Neptune planet HD3167 c, which transits…
Small Solar System Bodies as granular media
D. Hestroffer, P. Sánchez, L. Staron +12
Asteroids and other Small Solar System Bodies (SSSBs) are of high general and scientific interest in many aspects. The origin, formation, and evolution of our Solar System (and oth…
Bias and robustness of eccentricity estimates from radial velocity data
N. C. Hara, G. Boué, J. Laskar +2
Eccentricity is a parameter of particular interest as it is an informative indicator of the past of planetary systems. It is however not always clear whether the eccentricity fitte…
High order regularised symplectic integrator for collisional planetary systems
Antoine C. Petit, Jacques Laskar, Gwenaël Boué +1
We present a new mixed variable symplectic (MVS) integrator for planetary systems, that fully resolve close encounters. The method is based on a time regularisation that allows kee…
First stellar occultation by the Galilean moon Europa and upcoming events between 2019 and 2021
B. Morgado, G. Benedetti-Rossi, A. R. Gomes-Júnior +21
Context. Bright stellar positions are now known with an uncertainty below 1 mas thanks to Gaia DR2. Between 2019-2020, the Galactic plane will be the background of Jupiter. The den…
A new non-convex model of the binary asteroid (809) Lundia obtained with the SAGE modelling technique
P. Bartczak, A. Kryszczyńska, G. Dudziński +12
We present a new non-convex model of the binary asteroid (809) Lundia. A SAGE (Shaping Asteroids with Genetic Evolution) method using disc-integrated photometry only was used for d…
The dynamics of the outer edge of Saturn's A ring perturbed by the satellites Janus and Epimetheus
N. C. S. Araujo, S. Renner, N. J. Cooper +4
We present an analytical model to study the dynamics of the outer edge of Saturn's A ring. The latter is influenced by 7:6 mean motion resonances with Janus and Epimetheus. Because…
Optimal rates for F-score binary classification
Evgenii Chzhen
We study the minimax settings of binary classification with F-score under the -smoothness assumptions on the regression function for $x \in \mat…
Meteor Shower Modeling: Past and Future Draconid Outbursts
A. Egal, P. Wiegert, P. G. Brown +5
This work presents numerical simulations of meteoroid streams released by comet 21P/Giacobini-Zinner over the period 1850-2030. The initial methodology, based on Vaubaillon et al.…
Precise determination of stellar parameters of the ZZ Ceti and DAZ white dwarf GD 133 through asteroseismology
J. -N. Fu, G. Vauclair, J. Su +15
An increasing number of white dwarf stars show atmospheric chemical composition polluted by heavy elements accreted from debris disk material. The existence of such debris disks st…
The dynamics of rings around Centaurs and Trans-Neptunian Objects
Bruno Sicardy, Stefan Renner, Rodrigo Leiva +4
Since 2013, dense and narrow rings are known around the small Centaur object Chariklo and the dwarf planet Haumea. Dense material has also been detected around the Centaur Chiron,…
Orbital relaxation and excitation of planets tidally interacting with white dwarfs
Dimitri Veras, Michael Efroimsky, Valeri V. Makarov +6
Observational evidence of white dwarf planetary systems is dominated by the remains of exo-asteroids through accreted metals, debris discs, and orbiting planetesimals. However, exo…
Tidal evolution of the Keplerian elements
Gwenaël Boué, Michael Efroimsky
We address the expressions for the rates of the Keplerian orbital elements within a two-body problem perturbed by the tides in both partners. The formulae for these rates have appe…