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The spectacular 200 kpc-wide disk of the Malin 1 giant low surface brightness galaxy

Published online by Cambridge University Press:  21 March 2017

Samuel Boissier
Samuel Boissier*
Affiliation:
Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326, 13388, Marseille, France email: [email protected]
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Abstract

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Malin 1 is the best example among giant low surface brightness galaxies. New observations of this object in 6 broad-bands allow us for the first time to perform a pan-chromatic study of the stellar population in its 200 kpc wide disk. We observe a spiral structure revealing a star forming disk. The colors indicate a long history with a low efficiency of star formation. It is well reproduced by a model of disk galaxy making it similar to the disk of the Milky Way or other nearby spirals, except for its extremely large angular momentum.

Keywords

galaxies: individual (Malin 1)galaxies: structuregalaxies: stellar content
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S321: Formation and Evolution of Galaxy Outskirts , March 2016 , pp. 205 - 207
Copyright
Copyright © International Astronomical Union 2017 

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