We present Herschel PACS and SPIRE images of the dust shells around the planetary nebulae NGC 650, NGC 6853, and NGC 6720, as well as images showing the dust temperature in their shells. The latter shows a rich structure, which indicates that internal extinction in the UV is important despite the highly evolved status of the nebulae.
@article{arxiv.1109.4219,
title = {A Herschel study of Planetary Nebulae},
author = {G. C. Van de Steene and K. M. Exter and P. A. M. van Hoof and T. L. Lim and M. J. Barlow and M. Matsuura and T. Ueta and the MESS Consortium},
journal= {arXiv preprint arXiv:1109.4219},
year = {2015}
}
Comments
2 pages, 1 figure, 2012, proceedings IAU Symposium 283 Planetary Nebulae: An Eye to the Future