English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

While stars are often found in binary systems, brown dwarf binaries are muchrarer. Brown dwarf--brown dwarf pairs are typically difficult to resolvebecause they often have very small separations. Using brown dwarfs discoveredwith data from the Wide-field Infrared Survey Explorer (WISE) via the BackyardWorlds: Planet 9 citizen science project, we inspected other, higherresolution, sky surveys for overlooked cold companions. During this process wediscovered the brown dwarf binary system CWISE J0146$-$0508AB, which we findhas a very small chance alignment probability based on the similar propermotions of the components of the system. Using follow-up near-infraredspectroscopy with Keck/NIRES, we determined component spectral types of L4 andL8 (blue), making CWISE J0146$-$0508AB one of only a few benchmark systems witha blue L dwarf. At an estimated distance of $\sim$40 pc, CWISE J0146$-$0508ABhas a projected separation of $\sim$129 AU, making it the widest separationbrown dwarf pair found to date. We find that such a wide separation for a browndwarf binary may imply formation in a low-density star-forming region.

CWISE J014611.20-050850.0AB: The Widest Known Brown Dwarf Binary in the Field