Arnaud, M. and Atrio-Barandela, F. and Aumont, J. and Baccigalupi, C. and Banday, A.J. and Barreiro, R.B. and Battaner, E. and Benabed, K. and Benoit-Lévy, A. and Bernard, J.-P. and Bersanelli, M. and Bielewicz, P. and Bonaldi, A. and Bond, J.R. and Borrill, J. and Bouchet, F.R. and Buemi, C.S. and Burigana, C. and Cardoso, J.-F. and Casassus, S. and Catalano, A. and Cerrigone, L. and Chamballu, A. and Chiang, H.C. and Colombi, S. and Colombo, L.P.L. and Couchot, F. and Crill, B.P. and Curto, A. and Cuttaia, F. and Davies, R.D. and Davis, R.J. and De Bernardis, P. and de Rosa, A. and de Zotti, G. and Delabrouille, J. and Dickinson, C. and Diego, J.M. and Donzelli, S. and Dore, O. and Dupac, X. and Enßlin, T.A. and Eriksen, H.K. and Finelli, F. and Frailis, M. and Franceschi, E. and Galeotta, S. and Ganga, K. and Giard, M. and Gonzalez-Nuevo, J. and Gorski, K.M. and Gregorio, A. and Gruppuso, A. and Hansen, F.K. and Harrison, D. and Hildebrandt, S.R. and Hivon, E. and Holmes, W.A. and Hora, L. and Hornstrup, A. and Hovest, W. and Huffenberger, K.M. and Jaffe, T.R. and Jones, W.C. and Juvela, M. and Keihanen, E. and Keskitalo, R. and Kisner, T.S. and Knoche, J. and Kunz, M. and Kurki-Suonio, H. and Lahteenmaki, A. and Lamarre, J.-M. and Lasenby, A. and Lawrence, C.R. and Leonardi, R. and Leto, P. and Lilje, P.B. and Linden-Vornle, M. and Lopez-Caniego, M. and Macias-Perez, J.F. and Maffei, B. and Maino, D. and Mandolesi, N. and Martin, P.G. and Masi, S. and Massardi, M. and Matarrese, S. and Mazzotta, P. and Mendes, L. and Mennella, A. and Migliaccio, M. and Miville-Deschenes, M.-A. and Moneti, A. and Montier, L. and Morgante, G. and Mortlock, D. and Munshi, D. and Murphy, J.Anthony and Naselsky, P. and Nati, F. and Natoli, P. and Noviello, F. and Novikov, D. and Novikov, I. and Pagano, L. and Pajot, F. and Paladini, R. and Paoletti, D. and Peel, M. and Perdereau, O. and Perrotta, F. and Piacentini, F. and Piat, M. and Pietrobon, D. and Plaszczynski, S. and Pointecouteau, E. and Polenta, G. and Popa, L. and Pratt, G.W. and Procopio, P. and Prunet, S. and Puget, J.-L. and Rachen, J.P. and Reinecke, M. and Remazeilles, M. and Ricciardi, S. and Riller, T. and Ristorcelli, I. and Rocha, G. and Rosset, C. and Roudier, G. and Rubino-Martin, J.A. and Rusholme, B. and Sandri, M. and Savini, G. and Scott, D. and Spencer, L. and Stolyarov, V. and Sutton, D. and Suur-Uski, A.-S. and Sygnet, J.-F. and Tauber, J.A. and Terenzi, L. and Toffolatti, L. and Tomasi, M. and Trigilio, C. and Tristram, M. and Trombetti, T. and Tucci, M. and Umana, G. and Valiviita, J. and Van Tent, B. and Vielva, P. and Villa, F. and Wade, L.A. and Wandelt, B.D. and Zacchei, A. and Zijlstra, A. and Zonca, A. (2015) Planck intermediate results. XVIII. The millimetre and sub-millimetre emission from planetary nebulae. Astronomy & Astrophysics, 573 (A6). ISSN 0004-6361

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Abstract

Late stages of stellar evolution are characterized by copious mass-loss events whose signature is the formation of circumstellar envelopes (CSE). Planck multi-frequency measurements have provided relevant information on a sample of Galactic planetary nebulae (PNe) in the important and relatively unexplored observational band between 30 and 857 GHz. Planck enables the assembly of comprehensive PNe spectral energy distributions (SEDs) from radio to far-IR frequencies. Modelling the derived SEDs provides us with information on physical properties of CSEs and the mass content of both main components: ionized gas, traced by the free-free emission at cm–mm waves; and thermal dust, traced by the millimetre and far-IR emission. In particular, the amount of ionized gas and dust has been derived here. Such quantities have also been estimated for the very young PN CRL 618, where the strong variability observed in its radio and millimetre emission has previously prevented constructing its SED. A morphological study of the Helix Nebula was also performed. Planck maps reveal, for the first time, the spatial distribution of the dust inside the envelope, allowing us to identify different components, the most interesting of which is a very extended component (up to 1 pc) that may be related to a region where the slow expanding envelope is interacting with the surrounding interstellar medium.

Item Type:	Article
Keywords:	planetary nebulae; radio continuum; submillimeter; ISM;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics
Item ID:	13791
Identification Number:	https://doi.org/10.1051/0004-6361/201423836
Depositing User:	Dr. Anthony Murphy
Date Deposited:	08 Jan 2021 16:45
Journal or Publication Title:	Astronomy & Astrophysics
Publisher:	EDP Sciences
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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