WASHINGTON, Sept. 3 -- 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 2021 edition:

* Characterizing Undetected Stellar Companions with Combined Data Sets

* New Subgrouping of Multiple Stellar Populations in NGC 2808 Based on Low-resolution Spectroscopy

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