Dwarf Nova CV 1 in the Dense Globular Cluster

Despite decades-old predictions of the expected presence of dozens of cataclysmic variables in the cores of globular clusters, the number of irrefutable, out-bursting candidates is still barely a handful. Using multi-wavelength, multiepoch HST images we have produced outburst and quiescence light curves for the recently discovered large amplitude variable CV1 in the core of the post corecollapse globular cluster M15. The light curves and blue colors show that the object is a bona fide dwarf nova, with absolute magnitude at maximum light rivaling that of the most luminous known dwarf novae. Subject headings: Stars: dwarf novae, cataclysmic variables — globular clusters: individual (M15)