HST NICMOS Observation of Proto-Planetary Nebulae
K. Y. L. Su, S. Kwok, B. J. Hrivnak, R. Sahai
Abstract
We report NICMOS wide-band and polarimetric observations of four proto-planetary nebulae. Molecular hydrogen emission is detected near the ends of the bipolar lobes of IRAS 17150-3224, which is evidence for the interaction of a fast, collimated outflow with the remnant of the asymptotic giant branch wind.
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