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The 2X-Hi disks of spiral galaxies

Published online by Cambridge University Press:  21 March 2017

Bärbel S. Koribalski
Bärbel S. Koribalski*
Affiliation:
Australia Telescope National Facility, CSIRO Astronomy & Space Science P.O. Box 76, Epping, NSW 1710, Australia email: Baerbel.Koribalski@csiro.au
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Abstract

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The outskirts of galaxies — especially the very extended Hi disks of galaxies — are strongly affected by their local environment. I highlight the giant 2X-Hi disks of nearby galaxies (M 83, NGC 3621, and NGC 1512), studied as part of the Local Volume Hi Survey (LVHIS), their kinematics and relation to XUV disks, signatures of tidal interactions and accretion events, the MHI - DHI relation as well as the formation of tidal dwarf galaxies. - Using multi-wavelength data, I create 3D visualisations of the gas and stars in galaxies, with the shape of their warped disks obtained through kinematic modelling of their Hi velocity fields.

Keywords

radio lines: galaxies (M 83, NGC 3621, NGC 1512)spiralISM3D visualisation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S321: Formation and Evolution of Galaxy Outskirts , March 2016 , pp. 232 - 234
Copyright
Copyright © International Astronomical Union 2017 

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