Sentences with phrase «for planetesimal»

Moulton, an astronomer from the University of Chicago known for the planetesimal theory of planet formation, served as AAAS Permanent Secretary and then Administrative Secretary, 1937 to 1948.

Astronomers set out to examine competing explanations for planetesimal formation.

Not exact matches

That's compelling evidence for the gravitational collapse theory of asteroid formation, which states that the space dust that made up the planetesimals smashed together almost instantaneously.

Fragments of these planetesimals remain today as meteorites called achondrites, which scientists have pored over for clues to how planets formed.

The processes that convert these tiny grains, each a few millionths of a metre (a micron) across, into aggregates a few centimetres in size, and the mechanism for making kilometre - sized «planetesimals» into planetary cores, are both well understood.

The full sample of 177 FGK stars with d < 20 pc proposed for the DUNES su... ▽ More Debris discs are a consequence of the planet formation process and constitute the fingerprints of planetesimal systems.

We have resolved the dust - producing planetesimal belt of a debris disc at 100 -LCB- \ mu -RCB- m for the first time.

That's why a number of ideas have been proposed recently for speeding up core formation, by efficient accretion of either cm - or mm - sized «pebbles» early on, or small fragments and debris resulting from planetesimal collisions at later stages.

On top of that, the assets developed for planetary creation (including the creation of the planets themselves) are «using the proper scientific processes, from first principles, in terms of how the solar system was formed... You get rocks forming first, when planetesimals stick together, then liquid forming on the surface.»