Methyl formate integrated intensity maps obtained with the Plateau de Bure Interferometer (sum of emission at 223 465.340 MHz, 223 500.463 MHz, and 223 534.727 MHz between 5 and 12 km s^-1). The bottom image is a blowup of the Hot Core/Compact Ridge map area. The beam is 1.79″  ×  0.79″; the level step and first contour are 3.2 K km s^-1. The BN object position is (α_J2000 = 05^h35^m141094, δ_J2000 = −05°22′22724), the radio source I position is (α_J2000 = 05^h35^m145141, δ_J2000 = −05°22′30575), and the IR source n position is (α_J2000 = 05^h35^m143571, δ_J2000 = −05°22′32719) (Goddi et al. 2011). The position of the millimeter source MM23 (Eisner et al. 2008) is also indicated. The main different HCOOCH₃ emission peaks identified on channel maps are marked by a cross and labeled MF_NUMBER.