Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916703r&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #167.03; Bulletin of the American Astronomical Society,
Astronomy and Astrophysics
Astronomy
Scientific paper
We present the preliminary findings of a kinematic study of the low luminosity elliptical galaxy IC 225. This object is of considerable interest as it contains two bright nuclei which could give credence to the theory of dwarf elliptical (dE) formation through mergers. We present Integral Field Unit (IFU) data of the dE from the Gemini-North Multi Object Spectrograph (GMOS) Integral Field Unit (IFU) taken December of 2005. We present a new comprehensive reduction plan for data of this sort. From the reduced IFU data, we present several 2D maps of the region including higher order Balmer lines and the [OIII] doublet at λ4959, 5007. From these images we conclude that within IC 225, the off-center nucleus is almost certainly associated with a large cloud of gas. There is evidence that the gas is rotating about the geometrical center of the galaxy but that the stellar velocity of the young star cluster, or off-center nucleus, is distinct from the velocities of the stars in the main body of the galaxy.
Miller Bryan W.
Rudie Gwen C.
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