16 points blincoln 1 hour ago 5 comments
A_D_E_P_T 45 minutes ago | parent
> Their results favour a scenario in which the young Sun engulfed a super-Earth around 5–10 times the mass of Earth
Given the state of the early solar system, it would be surprising if the Sun didn't swallow a lot of metallic and carbonaceous rocks and pebbles. But it seems unclear to me how the researchers would distinguish between one super-Earth and >10^10 smaller rocks? Chemically I feel the two would be largely the same.
cfiggers 43 minutes ago | parent
That's easy, they'll check whether there's one big fingerprint vs >10^10 little tiny fingerprints and conclude accordingly \j
omnicognate 39 minutes ago | parent
> Researchers also found that such a world could survive its passage through the Sun's outer layers while losing very little mass, which suggests that planets may leave detectable fingerprints inside their host stars long after they have disappeared.
So I guess the large size would have permitted it to smuggle stuff into the core that would have just vaporised in the corona if carried by many smaller objects?
N_Lens 43 minutes ago | parent
That’s it Apollo! Spit it out, what’s in your mouth, spit it out now!
hnd9q09qk4 21 minutes ago | parent
Did stellar abundance fits in grad school, getting the Teff systematics out took months.