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arXiv · 2206.01754

Radio Emission from Binary Ultracool Dwarf Systems

Melodie M. Kao·J. Sebastian Pineda
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Abstract

Well-characterized binary systems will provide valuable opportunities to study the conditions that are necessary for the onset of both auroral and non-auroral magnetospheric radio emission in the ultracool dwarf regime. We present new detections of non-auroral "quiescent" radio emission at 4-8 GHz of the three ultracool dwarf binary systems GJ 564 BC, LP 415-20, and 2MASS J21402931+1625183. We also tentatively detect a highly circularly polarized pulse at 4-6 GHz that may indicate aurorae from GJ 564 BC. Finally, we show that the brightest binary ultracool dwarf systems may be more luminous than predictions from single-object systems.

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Melodie M. Kao, J. Sebastian Pineda. 2022-06-03. Radio Emission from Binary Ultracool Dwarf Systems. https://doi.org/10.3847/1538-4357%2Fac660b

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