Globular clusters in NGC 5128

We used the Wide Field Planetary Camera 2 aboard the Hubble Space Telescope to search for globular clusters in the inner regions of the nearby giant e lliptical galaxy NGC 5128. This galaxy is believed to be the product of a m erger between a large elliptical galaxy and a small late-type spiral betwee n 160 and 500 Myr ago. We identified 21 globular cluster candidates and mea sured their core radii, tidal radii, half-mass radii, ellipticities, positi on angles, and V-I colors. We find evidence that the NGC 5128 globular clus ter candidates are systematically more elliptical than are those of the Mil ky Way. Approximately half of the candidates have (V-I)(0) colors that are consistent with their being either old, unreddened globular clusters, simil ar to those found in the Milky Way, or young, reddened globular clusters th at may have formed during the recent merger event. Most of the rest have co lors that are consistent with their being old globular clusters similar to those found in the Milky Way. We find one blue object with (V-I)(0) < 0.26 +/- 0.09. The color, reddening, and integrated magnitude of this object are consistent with its being a small globular cluster with an age of similar to 100 Myr and a mass (based on its integrated luminosity) of less than or equal to 4000 M.. We find no evidence for bimodality in the colors of the g lobular cluster candidates in our sample beyond what can be explained by un certainties in the differential reddening.