TOI-1278 B: SPIRou unveils a rare Brown Dwarf Companion in Close-In Orbit around an M dwarf

Étienne Artigau, Guillaume Hébrard, Charles Cadieux +39

We present the discovery of an $18.5\pm 0.5$M${}_{\mathrm{Jup}}$ brown dwarf (BD) companion to the M0V star TOI-1278. The system was first identified through a percent-deep transit in TESS…