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We report the detection of a transiting hot Neptune exoplanet orbitingTOI-824 (SCR J1448-5735), a nearby (d = 64 pc) K4V star, using data from the\textit{Transiting Exoplanet Survey Satellite} (TESS). The newly discoveredplanet has a radius, $R_{\rm{p}}$ = 2.93 $\pm$ 0.20 R$_{\oplus}$, and anorbital period of 1.393 days. Radial velocity measurements using the PlanetFinder Spectrograph (PFS) and the High Accuracy Radial velocity Planet Searcher(HARPS) spectrograph confirm the existence of the planet and we estimate itsmass to be $M_{\rm{p}}$ = 18.47 $\pm$ 1.84 M$_{\oplus}$. The planet's meandensity is $\rho_{\rm{p}}$ = 4.03$^{+0.98}_{-0.78}$ g cm$^{-3}$ making it morethan twice as dense as Neptune. TOI-824 b's high equilibrium temperature makesthe planet likely to have a cloud free atmosphere, and thus an excellentcandidate for follow up atmospheric studies. The detectability of TOI-824 b'satmosphere from both ground and space is promising and could lead to thedetailed characterization of the most irradiated, small planet at the edge ofthe hot Neptune desert that has retained its atmosphere to date.

TOI-824 b: A New Planet on the Lower Edge of the Hot Neptune Desert