Radio continuum emission at 93 GHz. The color scale goes from 1.5 (about 5σ rms noise level) to 16.5 mJy beam⁻¹. The contour levels are at 1.5, 2.5, 4, 5, 12, 30 mJy beam⁻¹. The red filled circle indicates the position and extension (up to 3σ rms noise level) of the radio continuum emission at 1.3 cm detected by Rosero et al. (2016). The white box indicates the region mapped at 334 GHz. The beam is indicated in the top right corner.