TOI-150: A Transiting Hot Jupiter in the TESS Southern CVZ

We report the detection of a hot Jupiter (${M}_{p}={1.75}_{-0.17}^{+0.14}\,{M}_{{\rm{J}}}$, Rp = 1.38 ± 0.04 RJ) orbiting a middle-aged star ($\mathrm{log}g={4.152}_{-0.043}^{+0.030}$) in the Transiting Exoplanet Survey Satellite (TESS) southern continuous viewing zone (β = −79fdg59). We confirm the planetary nature of the candidate TOI-150.01 using radial velocity observations from the APOGEE-2 South spectrograph and the Carnegie Planet Finder Spectrograph, ground-based photometric observations from the robotic Three-hundred MilliMeter Telescope at Las Campanas Observatory, and Gaia distance estimates. Large-scale spectroscopic surveys, such as APOGEE/APOGEE-2, now have sufficient radial velocity precision to directly confirm the signature of giant exoplanets, making such data sets valuable tools in the TESS era. Continual monitoring of TOI-150 by TESS can reveal additional planets and subsequent observations can provide insights into planetary system architectures involving a hot Jupiter around a star about halfway through its main-sequence life.