Terzan 5 is the only Galactic globular cluster that has plausibly been detected at very-high energies (VHEs; E > 100 GeV) by H.E.S.S., with 47 Tucanae (47 Tuc) being the densest and a very promising source in the Southern hemisphere for possible future detection in this band. 47 Tuc hosts the second-highest number of millisecond pulsars (29 detected in the radio so far). We model the broadband spectral energy distribution of this cluster, attributing this to cumulative pulsed emission from a population of embedded millisecond pulsars, as well as unpulsed emission from the interaction of their leptonic winds with the ambient magnetic and soft-photon fields.
Our model invokes an unpulsed inverse Compton (IC) component to model the TeV data and cumulative pulsed curvature radiation to fit the GeV Fermi data, and it explains the Chandra X-ray spectrum via a pulsed synchrotron radiation (SR) component from electron-positron pairs
originating from within the pulsar magnetospheres. An unpulsed SR component can explain the radio data. Using our model, we constrain model parameters and start breaking degeneracies among them. We lastly present predictions of the spectral shape of 47 Tuc as it would appear to CTA.