HI "Tails" from Cometary Globules in IC 1396

IC 1396 is a relatively nearby (750 pc), large (>2 deg), H II region ionized by a single O6.5 V star and containing bright-rimmed cometary globules. We have made the first arcminute resolution images of atomic hydrogen toward IC 1396, and have found remarkable "tail"-like structures associated with some of the globules and extending up to 6.5 pc radially away from the central ionizing star. These H I "tails" may be material which has been ablated from the globule through ionization and/or photodissociation and then accelerated away from the globule by the stellar wind, but which has since drifted into the "shadow" of the globules. This report presents the first results of the Galactic Plane Survey Project recently begun by the Dominion Radio Astrophysical Observatory.