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It is now apparent that classical T Tauri-like outflows commonly accompanythe formation of young brown dwarfs. To date two optical outflows have beendiscovered and results presented in this paper increase this number to three.Using spectro-astrometry the origin of the LS-RCrA 1 forbidden emission linesin a blue-shifted outflow is confirmed. The non-detection of the red-shiftedcomponent of the outflow in forbidden lines, along with evidence for someseparation between low and high velocity outflow components, do not support thehypothesis that LS-RCrA 1 has an edge-on accretion disk. The key result of thisanalysis is the discovery of an outflow component to the H-alpha line. TheH-alpha line profile has blue and red-shifted features in the wings whichspectro-astrometry reveals to also originate in the outflow. The discovery thatH-alpha emission in BDs can have a significant contribution from an outflowsuggests the use of H-alpha line widths as a proxy of mass accretion in BDs isnot clear-cut. This method assumes that any contribution to the H-alpha lineflux from a possible outflow is negligible. Finally the fact that the H-alphaline traces both lobes of the outflow while only the blue-shifted lobe is seenin forbidden emission points to the presence of a dust hole in the accretiondisk of LS-RCrA 1. This is commonly seen in CTTSs and is assumed to signal theonset of planet formation.

Uncovering the Outflow Driven by the Brown Dwarf LS-RCr A1: H-alpha as a Tracer of Outflow Activity in Brown Dwarfs