The Small Magellanic Cloud: A Dwarf Irregular In Transition to a Dwarf Spheroidal

Details The Small Magellanic Cloud: A Dwarf Irregular In Transition to a Dwarf Spheroidal The Small Magellanic Cloud: A Dwarf Irregular In Transition to a Dwarf Spheroidal

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21920106b&link_type=abstract

American Astronomical Society, AAS Meeting #219, #201.06

Astronomy and Astrophysics

Astronomy

Scientific paper

I will present new simulations of our nearest example of an interacting pair of dwarf galaxies, the Magellanic Clouds. Through detailed studies of their orbital evolution and large scale structure, insights can be gleaned into processes that affect the evolution of dwarf galaxies more generally. In particular, owing to a recent direct collision with the Large Magellanic Cloud, the Small Magellanic Cloud appears to be an object in the midst of a transition from a Dwarf Irregular galaxy to a Dwarf Spheroidal. Since dwarf-dwarf galaxy interactions are expected to be more frequent at higher redshift, this scenario might represent a more generic picture for the formation of Dwarf Spheroidals that is largely independent of interactions with massive spirals like the MW.

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