The JWST Reveals New Things About How Planetary Systems Form
网页1 天前 · However, other processes are also responsible for shaping protoplanetary disks. These include “X-wind,” where the star’s magnetic field pushes material outward at the inner edge of the disk.
Winds of change: Webb reveals forces that shape protoplanetary disks
网页4 天之前 · A team of astronomers led by University of Arizona researchers has used NASA's James Webb Space Telescope to obtain some of the most detailed insights into the forces that shape protoplanetary ...
Protoplanetary disk - Wikipedia
网页A protoplanetary disk is a rotating circumstellar disc of dense gas and dust surrounding a young newly formed star, a T Tauri star, or Herbig Ae/Be star. The protoplanetary disk may not be considered an accretion disk, while the two are similar. While they are similar, an accretion disk is hotter, and spins much faster.
Winds of change: James Webb Space Telescope reveals elusive …
网页5 天之前 · Every second, more than 3,000 stars are born in the visible universe. Many are surrounded by what astronomers call a protoplanetary disk – a swirling "pancake" of hot gas and dust from which planets form. The exact processes that give rise to stars and planetary systems, however, are still poorly understood.
The nested morphology of disk winds from young stars revealed …
网页5 天之前 · Radially extended disk winds could be the key to unlocking how protoplanetary disks accrete and how planets form and migrate. A distinctive characteristic is their nested morphology of velocity ...
NASA’s Webb Findings Support Long-Proposed Process of Planet …
网页2023年11月8日 · Scientists using Webb recently studied four protoplanetary disks—two compact and two extended. The researchers designed their observations to test whether compact planet-forming disks have more water in their inner regions than extended planet-forming disks with gaps.
Astronomers Discover The Largest Planet-Forming Disk We've …
网页2024年5月25日 · Protoplanetary disks are basically planetary nurseries consisting of the gas and dust that have settled around newly formed stars. Over time, these disks become rings as material coalesces into protoplanets in certain orbits, where they will eventually become rocky planets, gas giants, and icy bodies.
Is that a giant sandwich? No, it’s the biggest protoplanetary disk …
网页2024年5月23日 · A protoplanetary disk (artist’s impression) comprises dust and gas circling a young star. Such disks serve as nurseries for planets. Credit: M. Kornmesser/ESO/SPL. New observations have...
How worlds are born: JWST reveals exotic chemistry of ... - Nature
网页2023年9月20日 · Such ‘protoplanetary’ disks are what the environs of the Sun would have been like 4.6 billion years ago, with planets coalescing from the whirling material around an infant star. JWST is...
Protoplanetary Disk - NASA Science
网页2021年4月14日 · Protoplanetary Disk. December 7, 2022. This visualization shows the evolution of a young, isolated protoplanetary disk over 16,000 years, including the start of planetary formation.