WASHINGTON, Sept. 2 -- The Astronomical Journal, a journal from the American Astronomical Society that says it publishes astronomical research, with an emphasis on scientific results derived from observations, published research articles on the following topics in its October 2022 edition:

* Constraining the Planet Occurrence Rate around Halo Stars of Potentially Extragalactic Origin

* The Quadruple Image Configurations of Asymptotically Circular Gravitational Lenses