Anti-stars, antimatter, anti-atoms....?

[trinitree88]

I like it when a theorist steps out on a limb a bit and makes you think. It's kind of like getting lost in Boston....the maps clearly show that your destination is not far away, but they don't show the no-left turns, the one way streets, the saw horses, police tapes, blocking construction sites underway, or the potholes that have been large enough to capture small cars (yep, capture, Comm.Ave...). This guy A.D. Dolgov, calculates the time it takes an antistar to affect a red giant that captures it, minimal distance from here to our nearest antigalaxy, gamma fluxes....all kinds of stuff. Far out. Fun.

probably not right, but still fun. SEE:http://arxiv.org/PS_cache/arxiv/pdf/...002.2940v1.pdf

pothole on Comm. Ave was similar to this...SEE:http://www.moonbattery.com/pothole.jpg

[dgavin]

The main issue with this, is in the case of an anti-white dwarf falling into a white-drawf, the resulting release of energy would out do even hyper-nova's and GRB's by orders of magnitue. Such an event would be powerful enough to likely sterlize life in a good portion, if not all of a galaxy, possibly alter the shape of the galaxy as well. It's signature would likely be detected by now if anti-matter and matter stars existed anywhere in the universe, and it would likely overpower the microwave bakground for millions if not billions of years.

If a mix of matter and anti-matter stars was possible at all, we'd have seen proof of it by now.

This sound more like an ATM proposition, as current standard theory has that the universe is comprised of all matter, and no anti-matter (other then incidental anti-matter production).