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Cake day: June 4th, 2023

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  • The most compelling thing about it is the fact that final link says that there’s problems with the earlier models you also linked to.

    A critical constraint on solar system formation is the high 26Al/27Al abundance ratio of 5 ×10−5 at the time of formation, which was about 17 times higher than the average Galactic ratio, while the 60Fe/56Fe value was about 2×10−8, lower than the Galactic value. This challenges the assumption that a nearby supernova was responsible for the injection of these short-lived radionuclides into the early solar system.

    They go on to explain a workaround, but if you’d even glanced at the abstract you wouldn’t have included the first two papers because the third one is arguing that the previous models are not supported by the evidence.