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3rd of August 2016
ATNF Colloquium
A new Spin on Angular Momentum
by Danail Obreschkow (ICRAR/UWA)
Abstract. Since the time of Kant it has been supposed that angular momentum (AM) was fundamental to the nature of the `spiral nebulae', now known as galaxies. A century after the first measurement of galaxy rotations, theoretical and observational tools are now mature for systematic analyses of galaxy AM. This colloquium will commence by discussing the cosmological origin of AM and its role of AM in shaping galaxies. It will then highlight recent progress in understanding the detailed relationship between AM and galactic substructure, highlighting (1) the strong connection between atomic gas fraction and AM modelled via the new parameter `q' (Obreschkow & Glazebrook 2014, 2016), (2) the mass-AM-morphology relation, and (3) the role of AM in clumpy, turbulent disk galaxies. Limitations of the results are discussed carefully as is their potential to revolutionise our views on galaxy evolution in a cosmological context.

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