TOI-3714 b and TOI-3629 b: Two gas giants transiting M dwarfs confirmed with HPF and NEID

We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs. TOI-3714 (\(V=15.24,~J=11.74\)) is an M2 dwarf hosting a hot Jupiter (\(M_p=0.70 \pm 0.03~\mathrm{M_J}\) and \(R_p=1.01 \pm 0.03~\mathrm{R_J}\)) on an orbital period of \(2.154849 \pm 0.000001\) days with a resolved white dwarf companion. TOI-3629 (\(V=14.63,~J=11.42\)) is an M1 dwarf hosting a hot Jupiter (\(M_p=0.26 \pm 0.02~\mathrm{M_J}\) and \(R_p=0.74 \pm 0.02~\mathrm{R_J}\)) on an orbital period of \(3.936551_{-0.000006}^{+0.000005}\) days. We characterize each transiting companion using a combination of ground-based and space-based photometry, speckle imaging, and high-precision velocimetry from the Habitable-zone Planet Finder and the NEID spectrographs. With the discovery of these two systems, there are now nine M dwarfs known to host transiting hot Jupiters. Among this population, TOI-3714 b (\(T_{eq}=750\pm20\) K and \(\mathrm{TSM}=98\pm7\)) and TOI-3629 b (\(T_{eq}=690\pm20\) K and \(\mathrm{TSM}=80\pm9\)) are warm gas giants amenable to additional characterization with transmission spectroscopy to probe atmospheric chemistry and, for TOI-3714, obliquity measurements to probe formation scenarios.