  We report limits in the planetary-mass regime for companions around the
nearest single white dwarf to the Sun, van Maanen's star (vMa 2), from deep
J-band imaging with Gemini North and Spitzer IRAC mid-IR photometry. We find no
resolved common proper motion companions to vMa 2 at separations from 3" - 45",
at a limiting magnitude of J~23. Assuming a total age for the system of 4.1
+/-1 Gyr, and utilising the latest evolutionary models for substellar objects,
this limit is equivalent to companion masses >7 +/-1 Mjup (T~300K). Taking into
account the likely orbital evolution of very low mass companions in the
post-main sequence phase, these J-band observations effectively survey orbits
around the white dwarf progenitor from 3 - 50AU. There is no flux excess
detected in any of the complimentary Spitzer IRAC mid-IR filters. We fit a DZ
white dwarf model atmosphere to the optical BVRI, 2MASS JHK and IRAC
photometry. The best solution gives T=6030 +/- 240K, log g=8.10 +/-0.04 and,
hence, M= 0.633 +/-0.022Msun. We then place a 3sigma upper limit of 10 +/-2
Mjup on the mass of any unresolved companion in the 4.5 micron band.
