What young stars teach us about the birth of our solar system #shorts
Channel: S.N.c
Date: 2021-09-06

What young stars teach us about the birth of our solar system


When a baby star is forming, Espaillat explains, it eats up dust and gas particles swirling around it in what's called a protoplanetary disk. The particles slam into the surface of the star in a process called accretion. 


Protoplanetary disks are found within magnetized molecular clouds, which throughout the universe are known by astronomers to be breeding grounds for the formation of new stars. It's been theorized that the protoplanetary disks and the stars are connected by a magnetic field, and the particles follow the field on to the star. As particles collide into the surface of the growing star, hot spots—which are extremely hot and dense—form at the focal points of the accretion process.

"This [study] teaches us that the hot spots are footprints on the stellar surface created by the magnetic field," Espaillat says. At one time, the sun also had hot spots—different from sunspots, which are areas of our sun that are cooler than the rest of its surface—concentrated in the areas where it was eating up particles from a surrounding protoplanetary disk of gas and dust.


Link-https://phys.org/news/2021-09-young-stars-birth-solar.html

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