text: 478,53,1321274937026531329,2930047588,Andrew Vanderburg,"Check out this great new paper from Lizhou Sha (@mentisoasis) confirming and characterizing two new Saturn-mass exoplanets from the @TESSatMIT and @KeplerGO missions! <LINK> First thing's first, here are the family portraits. EPIC 246193072 b orbits its star every 12 days. It was discovered by K2 observations and confirmed with precise radial velocities from PFS, HARPS, and FEROS: <LINK> TOI 954 b is a hotter planet, orbiting its star every 3.7 days. It was discovered in the TESS full frame images and confirmed via radial velocity observations from CHIRON, CORALIE, HARPS, PFS, and MINERVA-Australis: <LINK> These two planets are in an interesting mass range and help us probe some of the questions surrounding giant planets. A major question in the field is why some of the hottest Jupiter-mass exoplanets are inflated, or larger than we would expect based on their mass alone. One way of probing inflation is to see whether planets can be re-inflated by additional heating when their host stars evolve into giants and leave the main sequence. @SKGrunblatt has done a lot of interesting work studying Jupiters that seem to be reinflated. TOI 954 b adds an interesting twist to this tale of planet inflation. Despite orbiting an evolving star, and being close to the reinflation regime, the planet does not seem to be larger than we would expect. So maybe reinflation is more efficient for Jupiters than Saturns. It's of course hard to draw any firm conclusions from just these two planets, but adding them to the exoplanet population will hopefully let us figure out the physics that causes hot Jupiters to be so huge. Finally, @mentisoasis did this work while working at the MIT TESS Science Office, but he has now just started as a grad student at the Univ. of Wisconsin-Madison. We're super excited to have him here!",https://arxiv.org/abs/2010.14436,"We report the discovery of two short-period Saturn-mass planets, one transiting the G subgiant TOI-954 (TIC 44792534, $ V = 10.343 $, $ T = 9.78 $) observed in TESS sectors 4 and 5, and one transiting the G dwarf K2-329 (EPIC 246193072, $ V = 12.70 $, $ K = 10.67 $) observed in K2 campaigns 12 and 19. We confirm and characterize these two planets with a variety of ground-based archival and follow-up observations, including photometry, reconnaissance spectroscopy, precise radial velocity, and high-resolution imaging. Combining all available data, we find that TOI-954 b has a radius of $0.852_{-0.062}^{+0.053} \, R_{\mathrm{J}}$ and a mass of $0.174_{-0.017}^{+0.018} \, M_{\mathrm{J}}$ and is in a 3.68 day orbit, while K2-329 b has a radius of $0.774_{-0.024}^{+0.026} \, R_{\mathrm{J}}$ and a mass of $0.260_{-0.022}^{+0.020} \, M_{\mathrm{J}}$ and is in a 12.46 day orbit. As TOI-954 b is 30 times more irradiated than K2-329 b but more or less the same size, these two planets provide an opportunity to test whether irradiation leads to inflation of Saturn-mass planets and contribute to future comparative studies that explore Saturn-mass planets at contrasting points in their lifetimes. ","TOI-954 b and K2-329 b: Short-Period Saturn-Mass Planets that Test