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Galaxies 2019, 7(1), 6; https://doi.org/10.3390/galaxies7010006

Radio Continuum Spectra of Planetary Nebulae

1
Space Radio-Diagnostics Research Centre, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 9, 10-720 Olsztyn, Poland
2
Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussels, Belgium
3
Faculty of Mathematics and Computer Sciences, University of Warmia and Mazury in Olsztyn, Słoneczna 54, 10-720 Olsztyn, Poland
4
Department of Astronomy and Astrophysics, The University of Manchester, Manchester M13 9PL, UK
*
Author to whom correspondence should be addressed.
Received: 4 December 2018 / Revised: 20 December 2018 / Accepted: 21 December 2018 / Published: 27 December 2018
(This article belongs to the Special Issue Asymmetric Planetary Nebulae VII)
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Abstract

Radio continuum emission of planetary nebulae is a rich source of information about their structure and physical parameters. Although radio emission is well studied, planetary nebulae show higher spectral indices than expected for homogeneous sphere. A few competing models exist in the literature to explain this discrepancy. We propose that it is related to non-spherical morphology of most of planetary nebulae. View Full-Text
Keywords: planetary nebulae; AGB and post-AGB; interstellar medium; radio continuum; winds; outflows planetary nebulae; AGB and post-AGB; interstellar medium; radio continuum; winds; outflows
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Hajduk, M.; Van Hoof, P.A.M.; Sniadkowska, K.; Krankowski, A.; Błaszkiewicz, L.; Dabrowski, B.; Zijlstra, A.A. Radio Continuum Spectra of Planetary Nebulae. Galaxies 2019, 7, 6.

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