I can’t believe it’s 2 years since the great dimming of Betelgeuse. The latest light curve was shown in the recent Christmas Meeting Sky Notes by Nick James. There have been a couple of conferences dedicated to Betelgeuse in the last year. Here is a nice paper on “The curious case of Betelgeuse”, by Jacco van Loon (Keele U.) posted in ArXiv today.
The Great Dimming of Betelgeuse is still eliciting papers on what caused it, such as this one submitted to the MNRAS. The title asks “Did a close tidal encounter cause the Great Dimming of Betelgeuse?” and although the answer (spoiler alert!) seems to be “probably not”, it’s still an interesting read.
Thanks for the link Jeremy. Yet another recent one (with somewhat more enlightening conclusions regarding RSG mass-loss mechanisms) is from Roberta Humphreys and Terry Jones at UMinn. It can be found at: https://arxiv.org/abs/2201.07818
This includes discussion of Betelgeuse and comparisons with the hypergiant VY CMa.