Map of the linear polarization of DH Tau B and nearby stars superimposed on a Herschel-SPIRE map at 350 μm. The length and orientation of the lines indicate the degree and angle of linear polarization, respectively. The black line shows the H-band polarization we measure for DH Tau B, and the orange lines display the SPHERE-IRDIS H-band measurements of DH Tau A and three other nearby T Tauri stars whose archival data we analyzed. White lines show optical measurements by Heyer et al. (1987). Yellow lines indicate the H-band polarization of three bright stars closest to DH Tau as derived from optical measurements by Moneti et al. (1984). The length of the H-band vectors are scaled by a factor of four with respect to the optical vectors.