21 'one-in-a-million' extreme dead stars found hiding around sun-like stars

[Admin]

Astronomers have detected 21 rare systems with widely separated neutron stars and sun-like stars. These binaries are "one in a million" and challenge dead star binary formation models.

21 'one-in-a-million' extreme dead stars found hiding around sun-like stars : Read more

 

[Helio]

Astronomers have detected 21 rare systems with widely separated neutron stars and sun-like stars. These binaries are "one in a million" and challenge dead star binary formation models.

21 'one-in-a-million' extreme dead stars found hiding around sun-like stars : Read more

Impressive resolution!

This further supports that astrophysics for the size of dead stars (white dwarfs and neutron stars), since none are more massive than physics allows, apparently.

Just speculating, but could the G-type star have survived the monster while much father away, only to migrate inward to its present location. The expelling of the outer atmospheres of massive stars will tend to send orbiting objects spiraling inward, though an explosion might alter this a bit.

The 1 in a million figure seems a bit high. Given the 21 known of these binaries, if 1/2 of all G-type stars are in binaries, then does this mean there are more than 42 million known G-type stars catalogued?