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Recently it has become apparent that proto-stellar-like outflow activityextends to the brown dwarf (BD) mass regime. While the presence of accretionappears to be the common ingredient in all objects known to drive jetsfundamental questions remain unanswered. The more prominent being the exactmechanism by which jets are launched, and whether this mechanism remainsuniversal among such a diversity of sources and scales. To address thesequestions we have been investigating outflow activity in a sample ofprotostellar objects that differ considerably in mass and mass accretion rate.Central to this is our study of brown dwarf jets. To date Classical T Tauristars (CTTS) have offered us the best touchstone for decoding the launchingmechanism. Here we shall summarise what is understood so far of BD jets and theimportant constraints observations can place on models. We will focus on thecomparison between jets driven by objects with central mass < 0.1M \odot andthose driven by CTTSs. In particular we wish to understand how the the ratio ofthe mass outflow to accretion rate compares to what has been measured forCTTSs.

Brown Dwarf Jets: Investigating the Universality of Jet Launching Mechanisms at the Lowest Masses