[astro-ph.EP] Co-natal stars, wide binaries that form from the same molecular cloud, should harbor the same stellar composition. Observations indicate stellar abundance differences in a small fraction of these co-natal […]
![Mass fraction of planets formed at 140K (top) and 300K (bottom) around Star B in pair 69. The composition of the planet is determined by the relative abundances of the elements the planet accreted. From left to right we change the stellar abundances according to their error bars in table B.2, where “Minus” corresponds to [X/H]−σ, “Normal” to [X/H], and “Plus” to [X/H]+σ. -- [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/Diversity.png?resize=1200%2C720&ssl=1)
[astro-ph.EP] Co-natal stars, wide binaries that form from the same molecular cloud, should harbor the same stellar composition. Observations indicate stellar abundance differences in a small fraction of these co-natal […]