Most of these novae are of the "Fe II" type in the classification system of Williams (1992). The only clear exceptions are M31 Nova 2006 #12, M33 Nova 2007 #01, M31N 2007-12b, and M31N 2007-12d, which are of the He/N type. Note the broad emission lines indicating a higher expansion velocities in these novae. (Nova M31 2007 10a and Nova M31 2007-11b are peculiar in that they have very narrow emission, but show He I lines.)
This material is based upon work supported by the National Science Foundation under Grant No. 0607682. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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