The magnetosphere of the ultracool dwarf DENIS 1048-3956
Ultracool dwarfs, the least-massive contributors to the stellar mass function, exhibit striking magnetic properties that are inconsistent with trends for more massive stars. Here, we present the widest-band radio observations to date of an ultracool dwarf, DENIS-PJ104814.9-395604, in four 2GHz bandwidths between wavelengths of 1cm and 10cm. These data were obtained with the Australia Telescope Compact Array using the new Compact Array Broadband Backend instrument. We detected a stable...[Show more]
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|Source:||Astrophysical Journal Letters|
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