Detection and Confirmation of Interstellar Acetic Acid

摘要

We have detected acetic acid (CH3COOH) in the Sgr B2 Large Molecule Heimat source using the Berkeley-Illinois-Maryland Association (BIMA) Array and the Caltech Owens Valley Radio Observatory (OVRO) Millimeter Array. With the BIMA array, we initially detected the 8_*,87_*,7 A blend near 90.2 GHz. The corresponding line from the E symmetry species was sought but may be blended with a line from another species. Interstellar CH_3COOH was confirmed using the OVRO array, with which we detected the 9_*,98_*,8 E blend near 100.9 GHz.