Near-infrared images of HIZOA J0836-43 show a
bulge-dominated spiral at the center of its HI-massive disk. However, the
mid-infrared uncovers a star-forming disk housing an intense starburst with a
star formation rate of approximately 21 Msun/yr (Cluver et al.
2008,
2010).This
luminous infrared galaxy (LIRG) appears to be undergoing asymmetric inside-out
disk building, with a star formation efficiency comparable to local disk
galaxies and quite different to merger-driven starbursts. This suggests a
tantalizing link to a distant epoch of star formation when gas-rich spirals
consumed similar amounts of fuel.
This week in Sydney:
The Most Massive Galaxies and their Precursors conference
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