Radio continuum images of the region around S 1 in ρ Oph. Left: at 1420 MHz with contours at 0.36, 0.52, 1.0, 2.0, 4.0, and 6.0 mJy beam⁻¹. Right: at 610MHz with contours at 0.12, 0.3, 0.6, 2.0, 4.0, and 6.0 mJy beam⁻¹. The beam sizes are shown in the bottom left corner of each panel. Asterisk marks the location of the embedded star S 1. The positional offsets (in arcseconds) are relative to the center α = 16^h26^m34. s175, δ = − 24° 23′ 28.′′3 (J2000).