Quickly: ApJL (Astrophysical Journal, Letters), the fast(er…)-response medium of Astrophysical Journal, now includes (vol. 994 #1, Nov 20):
Jewitt, D. Luu, J. Preperihelion Development of Interstellar Comet 3I/ATLAS L3
This is the “print” (official, as opposed to preprint) of their arxiv paper. Jewitt and Luu are well-versed in comets and their activity. Here, they (like Zhang et al. and Tonry et al.) follow the lightcurve (time history of magnitude) of our little exo-emitter.