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It has been proposed that a galaxy's nova rate might be enhanced by theproduction of nova progenitor binaries in the dense cores of its globularclusters (GCs). To explore this idea, relative nova rates in three Virgoelliptical galaxies, M87, M49 and M84, which have significantly different GCspecific frequencies ($S_{N}$) of 14, 3.6, and 1.6, respectively, were measuredover the course of 4 epochs spanning a period of 14 months. To simplify theanalysis, observations of the nearly equidistant galaxies were made on the samenights, with the same integration times, and through the same filter(H$\alpha$), so that the relative numbers of novae discovered would reflect therelative nova rates. At the conclusion of our survey we found a total of 27novae associated with M87, 37 with M49, and 19 with M84. After correcting forsurvey completeness, we found annual nova rates of $154^{+23}_{-19}$,$189^{+26}_{-22}$, and $95^{+15}_{-14}$, for M87, M49, and M84, respectively,corresponding to $K$-band luminosity-specific nova rates of $3.8\pm1.0$,$3.4\pm0.6$, and $3.0\pm0.6$ novae per year per $10^{10}~L_{K,\odot}$. Theoverall results of our study suggest that a galaxy's nova rate simply scaleswith its luminosity, and is insensitive to its GC specific frequency. Twonovae, one in M87 and one in M84, were found to be spatially coincident withknown GCs. After correcting for the mass fraction in GCs, we estimate thatnovae are likely enhanced relative to the field by at least an order ofmagnitude in the GC systems of luminous Virgo ellipticals.

Exploring the Role of Globular Cluster Specific Frequency on the Nova Rates in Three Virgo Elliptical Galaxies