Back to Volume
Paper: Molecular Cloud Structure from a CO Spectral Line: Interferometric Observations of MBM-12
Volume: 365, SINS — Small Ionized and Neutral Structures in the Diffuse Interstellar Medium
Page: 201
Authors: Ingalls, J.G.; Reach, W.T.; Bania, T.M.; Carpenter, J.M.
Abstract: We used the OVRO millimeter interferometer to measure the CO (1-0) surface brightness fluctuations as a function of velocity towards molecular cloud MBM-12. We detect no interferometer visibility at the velocity of the single-dish line core, suggesting a unity surface filling factor of emitting gas. According to our model, the line wing emission is produced by tiny (1-5 milliparsec), dilute clumps, whereas the line core emission comes from large (0.01 pc) surface-filling clumps (the beamsize is about 0.03 pc). If the model is correct, the cloud is made up of mostly transient structures.
Back to Volume