Newly Discovered Comet Is Likely Interstellar Visitor
https://www.space.com/possible-interstellar-comet-identified.html
MPEC 2019-R106 : Comet C/2019 Q4 (Borisov)
https://minorplanetcenter.net/mpec/K19/K19RA6.html
Interstellar comet 2I/Borisov
https://arxiv.org/abs/1909.05851
Fast and precise light curve model for transiting exoplanets with rings
https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stz2556/5568385
Radial velocity confirmation of K2-100b: a young, highly irradiated, and low density transiting hot Neptune
https://arxiv.org/abs/1909.05252
An Integrable Model for the Dynamics of Planetary Mean Motion Resonances
https://arxiv.org/abs/1909.05264