Detection of a Variable Infrared Excess Around SDSS 121209.31+013627.7

J. H. Debes, M. Lopez-Morales, A. Z. Bonanos +1

We present near-infrared $JH{K}_s$ photometry and light curves of the candidate magnetic white dwarf+brown dwarf binary SDSS J121209.31+013627.7 and report on the detection of near-i…