Results 111 to 120 of about 4,544 (213)

The Formation of Planetesimals through Gravitational Collapse

Thesis (Ph.D.)--Michigan State University. Earth and Environmental Sciences \u2013 Doctor of Philosophy, 2026To form an effective narrative of the solar system's origins and the formation of the planets, it is crucial to understand the creation of key ...
Barnes, Jackson Taylor
core   +1 more source

Initial mass function of planetesimals formed by the streaming instability

, 2017
The streaming instability is a mechanism to concentrate solid particles into overdense filaments that undergo gravitational collapse and form planetesimals.
Yang, Chao Chin, Urs Schäfer, Chao-Chin Yang, Anders Johansen, Johansen, Anders, Schäfer, Urs   +5 more
core   +2 more sources

Effects of stellar X-ray photoevaporation on planetesimal formation via the streaming instability

Astronomy & Astrophysics
Context. The formation of planetesimals via the streaming instability (SI) is a crucial step in planet formation, yet its triggering conditions and efficiency are highly sensitive to both disk properties and specific evolutionary processes. Aims.
Ying Xuchu, Liu Beibei, Yang Haifeng, Drążkowska Joanna, Stammler Sebastian M., Zhu Zhaohuan, Eriksson Linn E.J., Deng Hongping, Liu Bin, Chen Ping   +9 more
doaj   +1 more source

Planet formation in slightly inclined binary systems

EPJ Web of Conferences, 2011
One of the major problems of planet formation in close binary systems, such as α Centauri AB, is the formation of planetary embryos or cores by mutual accretion of km-sized planetesimals.
Ge J., Xie J.-W., Zhou J.-L.
doaj   +1 more source

PLANETESIMAL FORMATION INDUCED BY SINTERING [PDF]

The Astrophysical Journal, 2011
Sintering of H2O ice proceeds in an icy dust aggregate as the temperature increases due to the infall to the central star. By numerical simulations, I show that fragmentation of the aggregate by sintering occurs at a particular region of a protoplanetary nebula. The fragments accumulate at the region because their infalling velocity is low.
openaire   +1 more source

The Edges of Planetary Systems: Falling Off the Kuiper Cliff in a Dissipating Gas Disk

The Astrophysical Journal
Probably the last planetesimals to have formed from dust in the solar nebula are cold classical Kuiper Belt Objects (CCKBOs). To the extent that they are isolated and unchanged since birth, CCKBOs offer direct insights into nebular processes.
Rixin Li, Eugene Chiang
doaj   +1 more source

Formation of planetesimals [PDF]

, 1991
Formation of planetesimals is discussed. The following subject areas are covered: (1) nebular structure; (2) aerodynamics of the solid bodies in the nebula; (3) problems with gravitational instability; (4) particle growth by coagulation; properties of ...
Weidenschilling, Stuart J.
core  

Planetesimals Born Big by Clustering Instability? [PDF]

, 2017
Roughly 100km diameter primitive bodies (today's asteroids and TNOs; [1]) are thought to be the end product of so-called "primary accretion". They dominated the initial mass function of planetesimals, and precipitated the onset of a subsequent stage ...
Hartlep, Thomas, Estrada, Paul R., Cuzzi, Jeffrey N., Simon, Justin I.   +3 more
core  

Bridging the Gap, From Planetesimals Formation to the Onset of Pebble Accretion: Investigating the Early Growth of Locally Formed Planetesimals

One of the most promising formation pathways for planetesimals is the concentration of dust via Streaming instability (SI) and the subsequent gravitational collapse into planetesimals.
Kaufmann, Nicolas Leo, Alibert, Yann, Guilera, Octavio, Sebastian, Irina   +3 more
core   +1 more source

The Dissolution of Planetesimals in Electrostatic Fields

Planetesimals or smaller bodies in protoplanetary disks are often considered to form as pebble piles in current planet formation models. They are supposed to be large but loose, weakly bound clusters of more robust dust aggregates.
Becker, Tim, Teiser, Jens, Wurm, Gerhard, Onyeagusi, F. Chioma   +3 more
core   +1 more source