Sentences with phrase «larger planetary mass»
A larger planetary mass would cause the observed dust clumps to overlap by destroying and the hypothesized orbital resonances.
http://members.nova.org/ Not exact matches
When our solar system was in its infancy 4.5 billion years ago, a swarm of protoplanets swirled around the sun — some of which coalesced into larger and larger masses, while others were blasted to smithereens in a demolition derby of planetary proportions.
Many extrasolar planetary systems have large close - in planets, from rocky super-Earths (about two to 10 times the mass of Earth) to gassy mini-Neptunes or hot Jupiters.
Other theories involve planetary collisions that knock worlds off course or simply a large mass of materiallike an asteroid that jumps aboard and, by its mass and impact, tilts the once - flat orbit.
An estimated 5.1 Earth masses, 61 Vir b appears to be accompanied by at least two larger planetary siblings in the 61 Virginis system.
Occasionally these objects look something like planetary nebulae, as in the case of the Crab Nebula, but they differ from the latter in three ways: (1) the total mass of their gas (they involve a larger mass, essentially all the mass of the exploding star), (2) their kinematics (they are expanding with higher velocities), and (3) their lifetimes (they last for a shorter time as visible nebulae).
On December 16, 2009, a team of astronomers (including David Charbonneau, Zachory K. Berta, Jonathan Irwin, Christopher J. Burke, Philip Nutzman, Lars A. Buchhave, Christophe Lovis, Xavier Bonfils, David W. Latham, Stéphane Udry, Ruth A. Murray - Clay, Matthew J. Holman, Emilio E. Falco, Joshua N. Winn, Didier Queloz, Francesco Pepe, Michel Mayor, Xavier Delfosse, and Thierry Forveille) announced the discovery of a planet «b» of 6.55 ± 0.98 Earth - masses in a tight inner orbit using the «transit method» of planetary detection using «a fleet of ground - based telescopes no larger than those many amateur astronomers have in their backyards» as part of the MEarth Project (CfA news release).
The well - determined planetary properties and unusually large mass also make this planet an important benchmark for theoretical models of super-Jupiter formation.