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Danail Obreschkow (ICRAR)

Danail Obreschkow Colloquium: A new Spin on Angular Momentum

The Australia Telescope National Facility Colloquium
15:00-16:00 Wed 03 Aug 2016



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 and 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.


Juan Madrid

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