Concept
Comète de Halley
Publications associées (6)
Transport of dust across the Solar System: Constraints on the spatial origin of individual micrometeorites from cosmic-ray exposure
Reto Georg Trappitsch, Xuan Li
The origin of micrometeorites (MMs) from asteroids and comets is well-established, but the relative contribution from these two classes remains poorly resolved. Likewise, determining the precise origin of individual MMs is an open challenge. Here, cosmic-r ...
Royal Soc2024Euclid preparation XXVI. The Euclid Morphology Challenge: Towards structural parameters for billions of galaxies
Frédéric Courbin, Georges Meylan, Gianluca Castignani, Maurizio Martinelli, Slobodan Ilic, Yi Wang, Richard Massey, Marcello Farina
The various Euclid imaging surveys will become a reference for studies of galaxy morphology by delivering imaging over an unprecedented area of 15000 square degrees with high spatial resolution. In order to understand the capabilities of measuring morpholo ...
2023Submonolayer growth of cobalt on metallic and insulating surfaces studied by scanning tunneling microscopy and kinetic Monte-Carlo simulations
Submonolayer epitaxial growth is obtained by the deposition of less than a complete layer of atoms on a single crystal surface. It is of fundamental interest for industrial applications (e.g. in the semiconductor industry) as well as from the point of view ...
EPFL2008Research article - Comet 81P/Wild 2 under a microscope
Anders Meibom, Philippe Gillet, François Robert
The Stardust spacecraft collected thousands of particles from comet 81P/Wild 2 and returned them to Earth for laboratory study. The preliminary examination of these samples shows that the nonvolatile portion of the comet is an unequilibrated assortment of ...
2006Water-soluble quaternary polyammonium salts, process for their preparation and their use
The title polymers are prepd. by radical polymn. of unsatd. quaternary ammonium compds. with addn. of 0.1-3 mol% crosslinking monomers at 25-90% conversion. Stirring 180 g 50% aq. (CH2:CHCH2)2NMe2+Cl- (I) with 2 mol% (NH4)2S2O8 and 2 mol% (NH4)2CO3 at 18-2 ...
(Akademie der Wissenschaften der DDR, Ger. Dem. Rep.).1988Design of a digital phase shifter for multiple-quantum NMR
A fast digital phase shifter is described which yields accurate phase shifts for multiple-quantum NMR. It is sufficiently versatile for most relevant expts. in multiple-quantum spectroscopy. Alternative solns. for phase shifters are briefly compared. [on S ...
1982