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    Brown dwarf jets: Investigating the universality of jet launching mechanisms at the lowest masses


    Whelan, Emma and Bacciotti, F. and Ray, T.P. and Dougados, C. (2011) Brown dwarf jets: Investigating the universality of jet launching mechanisms at the lowest masses. Proceedings of the International Astronomical Union: Jets at all Scales, 6 (S275). pp. 396-399. ISSN 1743-9213

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    Official URL: https://doi.org/10.1017/S1743921310016467


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    Abstract

    Recently it has become apparent that proto-stellar-like outflow activity extends to the brown dwarf (BD) mass regime. While the presence of accretion appears to be the common ingredient in all objects known to drive jets fundamental questions remain unanswered. The more prominent being the exact mechanism by which jets are launched, and whether this mechanism remains universal among such a diversity of sources and scales. To address these questions we have been investigating outflow activity in a sample of protostellar objects that differ considerably in mass and mass accretion rate. Central to this is our study of brown dwarf jets. To date Classical T Tauri stars (CTTS) have offered us the best touchstone for decoding the launching mechanism. Here we shall summarise what is understood so far of BD jets and the important constraints observations can place on models. We will focus on the comparison between jets driven by objects with central mass <0.1M⊙ and those driven by CTTSs. In particular we wish to understand how the the ratio of the mass outflow to accretion rate compares to what has been measured for CTTSs.

    Item Type: Article
    Keywords: stars: low-mass; brown dwarfs; mass loss; ISM: jets and outflows;
    Academic Unit: Faculty of Science and Engineering > Experimental Physics
    Item ID: 9935
    Depositing User: Emma Whelan
    Date Deposited: 17 Sep 2018 14:14
    Journal or Publication Title: Proceedings of the International Astronomical Union: Jets at all Scales
    Publisher: Cambridge University Press
    Refereed: Yes
    URI:

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