At the heart of this discovery is TichaA Estrella The young woman is surrounded by a corroding disk, notable for its enormous dust.
He The James Webb Space Telescope (JWST) caught wind from the old disk formation for the first time Planets Vigorously disperses its gaseous content.
Knowing when the gas dissipates is important because it limits how long it remains Planets According to nascent, gas consumption from their surroundings Published in Astronomical Journal A team of scientists led by Naman Bajaj of the University of Arizona and Dr. Uma Gordy of the SETI Institute,
At the heart of the discovery is TCha, a young star (relative to the Sun) surrounded by its massive dust gap, an erosion disk approximately 30 AU in radius.
Images of dispersed gas
For the first time, astronomers have imaged a scattering gas (also known as wind) using four lines of neon (Ne) and argon (Ar). Planets. Pictures [Ne II] Shows that the wind is coming from an extended part of the disc.
“These winds can be driven by high-energy stellar photons (light from the star) or by the magnetic field weaving the forming disk. PlanetsNaman said in a statement.
Planetary systems like our solar system appear to have more rocky material than gaseous material. Around our sun, they include Planets Inner, Asteroid Belt and Kuiper Belt. But scientists have long known that discs form discs Planets They start with 100 times more mass in gas than in solids, which leads to a pressing question: when and how does most of the gas leave the disc/system?
In the early stages of planetary system formation, the Planets They coalesce into a small rotating disk of gas and dust around the young star. These particles stick together to form larger and larger pieces called planets. Over time, these planets collide and eventually form Planets.
Type, size and location Planets Which forms are available depends on the size of the material and how long it has been on the disc. Thus, the effect of creation Planets It depends on the evolution and dispersion of the disk.
The same team, Leiden Laboratory's Dr. Another paper led by Andrew Selleck performed simulations of stellar photon-driven scattering to distinguish between the two. They compared these simulations with actual observations and could explain the scattering observations of high-energy stellar photons, so the possibility cannot be ruled out.
The annual mass is equal to that of the Moon
“Measuring all four lines of JWST at the same time was critical in deducing the properties of the wind and enabled us to demonstrate that significant amounts of gas were being dispersed,” Selleck explained. To put this into context, the researchers calculated the equivalent of the mass dispersing each year. Luna. A companion article is currently under review Journal of AstronomyDescribe these results.
Tax [Ne II] Originally invented to create multiple disks Planets In 2007 Spitzer Space Telescope University of Arizona project leader Prof. Pascual was soon identified as the discoverer of the wind; This changed the focus of research efforts on understanding gas diffusion in disks.
The discovery of [Ne II] Spatial resolution and first detection [Ar III] Using JWST could be the next step in changing our understanding of this process.
(with information from Europa Press)
