Searching for Massive Remnant Planetary System Hosts with White Dwarf Gaia XP Spectra

Lou Baya Ould Rouis, J. J. Hermes, Pierre Bergeron +5

Remnant planetary systems around massive white dwarfs ($M_{\mathrm{WD}}>0.8{\mathrm{M}}_{\odot }$) are intrinsically rare and remain poorly characterized. As the evolutionary endpoints of i…