  2MASS J050051.85$-$093054.9 is the closest known low-mass helium-core white
dwarf in a binary system. We used three high-band international LOFAR stations
to perform a targeted search for a pulsar companion, reaching sensitivities of
~3 mJy for a 10-ms pulsar at a DM = 1 pc$\cdot$cm$^{-3}$. No pulsed signal was
detected, confidently excluding the presence of a detectable radio pulsar in
the system.

Solar and Stellar Astrophysics