[gleeaikin]

I just read the whole article. At the end is the name of the author, his science background, and 2 articles he has written. The second article is titled:

The Solar System’s Oort Cloud May Harbor an Astonishing Number of Objects from Other Stars

[SunkenCiv]

It makes sense, and is analogous to the cloud of small objects (minor moons and detritus) that have been captured by Jupiter. Thanks glee’!

https://www.scientificamerican.com/article/the-solar-systems-oort-cloud-may-harbor-an-astonishing-number-of-objects-from-other-stars/