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PDS 70 is a $\sim$5 Myr old star with a gas and dust disc in which severalproto-planets have been discovered. We present the first UV detection of thesystem along with X-ray observations taken with the \textit{Neil Gehrels SwiftObservatory} satellite. PDS 70 has an X-ray flux of 3.4$\times 10^{-13}$ ergcm$^{-2}$ s$^{-1}$ in the 0.3-10.0 keV range, and UV flux (U band) of3.5$\times 10^{-13}$ erg cm$^{-2}$ s$^{-1}$ . At the distance of 113.4 pcdetermined from Gaia DR2 this gives luminosities of 5.2$\times 10^{29}$ ergs$^{-1}$ and 5.4$\times 10^{29}$ erg s$^{-1}$ respectively. The X-rayluminosity is consistent with coronal emission from a rapidly rotating starclose to the log $\frac{L_{\mathrm{X}}}{L_{\mathrm{bol}}} \sim -3$ saturationlimit. We find the UV luminosity is much lower than would be expected if thestar were still accreting disc material and suggest that the observed UVemission is coronal in origin.

A Swift view of X-ray and UV radiation in the planet-forming T-Tauri system PDS 70