Astronomers discover asteroid treasure trove in old Hubble Space Telescope data

rod

Oct 22, 2019
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"Astronomers have revealed the trails of nearly 1,500 new asteroids hidden in data gathered by NASA's most venerable space telescope."

Interesting, periodic reports of more asteroids found in the solar system. Is there good computer models using the solar nebula and postulated primordial disc that explains all this as well as the Oort Cloud, TNOs too? Catalog of Circumstellar Disks, this site shows more than 300 discs reported and imaged. The average diameter is 583 au, the max is 19800 au and smallest 3.8 au. Running computer simulations is wide open here. A large primordial disc will rearrange everything. If various observed *discs* are some 400-600 au in diameter, their radii is some 200-300 au from the host stars. So far, when it comes to our solar system, models tend to focus on distinct regions like Mercury to Mars or Jupiter to Pluto or Jupiter to Neptune. Another report shows 873 discs are reported in Orion A. Planet-forming disks evolve in surprisingly similar ways, https://phys.org/news/2022-05-planet-forming-disks-evolve-surprisingly-similar.html. Disc diameter size in au relative to the host star, total dust mass in the disc, and total gas mass in the disc modeling is critical. Explaining the origin of the asteroids seen today and getting the correct mix of ingredients for the solar nebula and postulated primordial disc in the early solar system, looks like a work in progress with more needed.
 

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