PHYSICS They continued modelling different scenarios to explain this distribution and concluded that the only way to explain this is that all stars of a similar mass to the Sun start off as wide Class 0 binaries. 6 in 10 will break apart over time, the rest will form tight binaries. Single, low-mass stars are therefore formed from the break-up of binaries. "As the egg contracts, the densest part of the egg will be toward the middle, and that forms two concentrations of density along the middle axis," Stahler said. "These centres of higher density at some point collapse in on themselves because of their self-gravity to form Class 0 stars." Therefore, this theory implies that the dense cores convert twice as much mass into stars than we had previously believed. In the next few years, studies from the VLA and ALMA telescope in Chile and the SCUBA-2 survey in Hawaii will provide more insight into dense cores and star formation. Sources: https://phys.org/news/2017-06-evidence-stars-born-pairs.html https://cerncourier.com/a/evidence-suggests-all-stars-born-in-pairs/
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