Sentences with phrase «accreting protoplanet»

Here we present new J - band imaging polarimetry of LkC... ▽ More LkCa 15 hosts a pre-transitional disk as well as at least one accreting protoplanet orbiting in its gap.

Not exact matches

Colliding at speeds up to 22,000 miles per hour (36,000 kilometers per hour), such a collision may have stripped most of the rocky mantle from the protoplanet that became Mercury with its iron - rich core, while a Mars - size protoplanet struck the early Earth off - center and created a spray of mostly mantle material that later accreted to form the Moon.

Under one popular theory (Boss, 1995), if such protoplanets become sufficiently massive while there is still abundant amounts of hydrogen and helium gases remaining in the disk, then they may accrete substantial amounts of those gases and become so - called gas giants (like Jupiter, Saturn, Uranus, and Neptune in the Solar System).