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The magnetosphere of the ultracool dwarf DENIS 1048-3956

Ravi, Vikram; Hallinan, Gregg; Hobbs, G; Champion, David J.

Description

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]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/55904
Source: Astrophysical Journal Letters
DOI: 10.1088/2041-8205/735/1/L2

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