Publications associées à Exoplanet orbital and physical parameters

Large Orbital Moment of Two Coupled Spin-Half Co Ions in a Complex on Gold

The magnetic propertiesof transition-metal ions aregenerallydescribed by the atomic spins of the ions and their exchange coupling.The orbital moment, usually largely quenched due the ligand field,is then seen as a perturbation. In such a scheme, S = 1/2 io ...

AMER CHEMICAL SOC2023

Heat and charge transport in H2O at ice-giant conditions from ab initio molecular dynamics simulations

Federico Grasselli

The impact of the inner structure and thermal history of planets on their observable features, such as luminosity or magnetic field, crucially depends on the poorly known heat and charge transport properties of their internal layers. The thermal and electr ...

Nature Research2020

A large planetary body inferred from diamond inclusions in a ureilite meteorite

Philippe Gillet, Cécile Hébert, Marco Cantoni, Emad Oveisi, James Badro, Farhang Nabiei, Teresa Katharina Dennenwaldt

Planetary formation models show that terrestrial planets are formed by the accretion of tens of Moon-to Mars-sized planetary embryos through energetic giant impacts. However, relics of these large proto-planets are yet to be found. Ureilites are one of the ...

Nature Research2018

SATELLITE CONSTELLATION DESIGN FOR THE SOLVE MISSION INVESTIGATING DIURNAL CYCLES OF VEGETATION PHENOMENA

Anton Ivanov, Luzius Gregor Kronig, Sung Wook Paek, Olivier Ladislas Alain de Weck

This paper discusses the problem of finding an optimal satellite constellation for the SOLVE (Satellites Observing Lakes and Vegetation Environments) Mission. A key requirement of this mission is a temporal resolution of several observations per day. A sem ...

2016

New solar axion search using the CERN Axion Solar Telescope with He-4 filling

Manuel Gómez Marzoa

The CERN Axion Solar Telescope (CAST) searches for a -> gamma conversion in the 9 T magnetic field of a refurbished LHC test magnet that can be directed toward the Sun. Two parallel magnet bores can be filled with helium of adjustable pressure to match the ...

American Physical Society2015

Electric-Field-Induced Skyrmion Distortion and Giant Lattice Rotation in the Magnetoelectric Insulator Cu2OSeO3

Henrik Moodysson Rønnow, Arnaud Magrez, Ivica Zivkovic, Helmuth Berger, Ping Huang, Arash Alahgholipour Omrani, Jonathan White, Krunoslav Prsa

Uniquely in Cu2OSeO3, the Skyrmions, which are topologically protected magnetic spin vortexlike objects, display a magnetoelectric coupling and can be manipulated by externally applied electric (E) fields. Here, we explore the E-field coupling to the magne ...

American Physical Society2014

Non-perturbative modelling of energetic particle effects on resistive wall mode: Anisotropy and finite orbit width

Jonathan Graves

A non-perturbative magnetohydrodynamic-kinetic hybrid formulation is developed and implemented into the MARS-K code [Liu et al. , Phys. Plasmas 15 , 112503 (2008)] that takes into account the anisotropy and asymmetry [Graves et al. ,Nature Commun. 3 , 624 ...

American Institute of Physics (AIP)2014

The CORALIE survey for southern extrasolar planets XVII. New and updated long period and massive planets

Malte Tewes

Context. Since 1998, a planet-search program around main sequence stars within 50 pc in the southern hemisphere has been carried out with the CORALIE echelle spectrograph at La Silla Observatory. Aims. With an observing time span of more than 14 years, the ...

Edp Sciences S A2013

The structure of the asteroid 4 Vesta as revealed by models of planet-scale collisions

Philippe Gillet

Asteroid 4 Vesta seems to be a major intact protoplanet, with a surface composition similar to that of the HED (howardite-eucrite-diogenite) meteorites(1-4). The southern hemisphere is dominated by a giant impact scar(5), but previous impact models(6-8) ha ...

Nature Publishing Group2013

Anisotropic spin gaps in BiAg2-Ag/Si(111)

Klaus Kern, Marco Grioni, Alberto Crepaldi, Emmanouil Frantzeskakis

We present a detailed analysis of the band structure of the root 3 x root 3 R 30 degrees BiAg2/Ag/Si(111) trilayer system by means of high resolution Angle Resolved Photoemission Spectroscopy (ARPES). BiAg2/Ag/Si(111) exhibits a complex spin-polarized elec ...

2012