The detection of ketene (H2CCO) in Sgr B2 was
reported in 1977 by Turner.
Observations of several rotational lines were made using the
36 Foot Telescope at
The facility was closed in 2000.
Ketene was subsequently found in the cold dust cloud
Matthews & Sears, with further confirmation by
Irvine et al.
Ketene is a cousin to
formaldehyde, but does not
possess the full -CHO group. It is one of the numerous carbon-chain molecules that have been
observed in the interstellar medium. Ketene is
and unstable, but it is employed industrially for