Could there be a cluster of antimatter stars orbiting our galaxy?

[Judi Lynn]

By Paul Sutter - Astrophysicist 2 days ago

Antimatter shed by anti-stars could even be detectable here on Earth.



Electrons and their antimatter counterparts, positrons, interact around a neutron star in this visualization. Why is there so much more matter than antimatter in the universe we can see?
(Image: © NASA's Goddard Space Flight Center)

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of Ask a Spaceman and Space Radio, and author of How to Die in Space. He contributed this article to Space.com's Expert Voices: Opinions and Insights.

We don't know why the universe is dominated by matter over antimatter, but there could be entire stars, and maybe even galaxies, in the universe made of antimatter.

The anti-stars would continuously shed their antimatter components out into the cosmos, and could even be detectable as a small percentage of the high-energy particles hitting Earth.

Unbalanced birth
Antimatter is just like normal matter, except not. Every single particle has an anti-particle twin, with the exact same mass, exact same spin and exact same everything. The only thing different is the charge. For example, the anti-particle of the electron, called the positron, is exactly like the electron except that it has positive electric charge.

More:
https://www.livescience.com/cluster-antimatter-stars-orbiting-milky-way.html

[cstanleytech]

1. Question. If we calculated the mass of the blackholes at the center of the varies galaxies

as being created by antimatter when the universe was young could that explain the lack of it being detected?