A5008041995- Astro and Planetary Science
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Planetary Science and Exploration
- Astrophysics and Star Formation Studies
- Geomagnetism and Paleomagnetism Studies
- Geophysics and Gravity Measurements
- Geology and Paleoclimatology Research
- Scientific Research and Discoveries
- Solar and Space Plasma Dynamics
- Astronomical Observations and Instrumentation
- Quantum chaos and dynamical systems
- Gamma-ray bursts and supernovae
- Cosmology and Gravitation Theories
- Space Exploration and Technology
- Particle Accelerators and Free-Electron Lasers
- Paleontology and Stratigraphy of Fossils
- Numerical methods for differential equations
- History and Developments in Astronomy
- Geochemistry and Geologic Mapping
- Pulsars and Gravitational Waves Research
- Particle accelerators and beam dynamics
- Methane Hydrates and Related Phenomena
- Global Energy and Sustainability Research
- Geological and Geochemical Analysis
Institut de Mécanique Céleste et de Calcul des Éphémérides
2015-2024
Roche (France)
2011-2024
Sorbonne Université
2015-2024
Centre National de la Recherche Scientifique
2015-2024
Université Paris Sciences et Lettres
2014-2024
Observatoire de Paris
2011-2024
Lund University
2024
Académie de Paris
2023
University of Crete
2022
European Organization for Nuclear Research
2019-2022
The expected changes over the past 500 million years in principal astronomical frequencies influencing Earth's climate may be strong enough to detectable geological records, and such effects have been inferred several cases. Calculations suggest that shortening of Earth-moon distance length day back time induced a fundamental periods for obliquity climatic precession, from 54 35, 41 29, 23 19, 19 16 thousand last half-billion years. At same time, precessional constant increased 50 61 arc...
Determining the architecture of multi-planetary systems is one cornerstones understanding planet formation and evolution. Resonant are especially important as fragility their orbital configuration ensures that no significant scattering or collisional event has taken place since earliest phase when parent protoplanetary disc was still present. In this context, TOI-178 been subject particular attention first TESS observations hinted at a 2:3:3 resonant chain. Here we report results from...
Lithological cyclicity was observed aboard the JOIDES RESOLUTION in sediment sequences recovered from Ceara Rise during ODP Leg 154. Shipboard work led to conclusion that Oligocene probably characterized by ca. 41 ka cycles. Weedon and others were able confirm this, created a provisional time–scale for assuming is response orbital obliquity variation, using spectral analysis estimate mean wavelength hence sedimentation rate of successive intervals core. We have extended this intercorrelating...
Five sections drilled in multiple holes over a depth transect of more than 2200 m at the Walvis Ridge (SE Atlantic) during Ocean Drilling Program (ODP) Leg 208 resulted first complete early Paleogene deep‐sea record. Here we present high‐resolution stratigraphic records spanning ∼4.3 million yearlong interval late Paleocene to Eocene. This includes Paleocene‐Eocene thermal maximum (PETM) as well Eocene (ETM) 2 event. A detailed chronology was developed with nondestructive X‐ray fluorescence...