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Near–Infrared Imaging of Proto-Planetary Nebulae

Published online by Cambridge University Press:  07 August 2017

R.E.S. Clegg
Affiliation:
Royal Greenwich Observatory, Madingley Rd, Cambridge CB3 0EZ, UK
N. A. Walton
Affiliation:
Dept of Physics & Astronomy, University College London, Gower St, London WC1E 6BT, UK
M.J. Barlow
Affiliation:
Dept of Physics & Astronomy, University College London, Gower St, London WC1E 6BT, UK

Extract

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It is not really known how low and intermediate mass stars eject mass to form PNs. We present preliminary results from a programme of near–IR imaging, in which we study a sequence of objects, from extreme AGB stars through proto–planetaries to young, compact PNs. We aim to study the sequence of morphologies, to see where the onset of bipolar shaping occurs, and to use the IR molecular hydrogen lines to map neutral regions around ionized nebulae.

Type
IV. Planetary Nebulae Connection: Evolution from the AGB
Copyright
Copyright © Kluwer 1993