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http://hdl.handle.net/20.500.12386/23084
Title: | Planck intermediate results. XVIII. The millimetre and sub-millimetre emission from planetary nebulae | Authors: | Planck Collaboration Arnaud, M. Atrio-Barandela, F. Aumont, J. Baccigalupi, C. Banday, A. J. Barreiro, R. B. Battaner, E. Benabed, K. Benoit-Lévy, A. Bernard, J. -P. Bersanelli, M. Bielewicz, P. Bonaldi, A. Bond, J. R. Borrill, J. Bouchet, F. R. BUEMI, CARLA SIMONA BURIGANA, CARLO Cardoso, J. -F. Casassus, S. Catalano, A. Cerrigone, L. Chamballu, A. Chiang, H. C. Colombi, S. Colombo, L. P. L. Couchot, F. Crill, B. P. Curto, A. CUTTAIA, FRANCESCO Davies, R. D. Davis, R. J. de Bernardis, P. De Rosa, A. de Zotti, G. Delabrouille, J. Dickinson, C. Diego, J. M. Donzelli, S. Doré, O. Dupac, X. Enßlin, T. A. Eriksen, H. K. FINELLI, FABIO FRAILIS, Marco FRANCESCHI, ENRICO GALEOTTA, Samuele Ganga, K. Giard, M. González-Nuevo, J. Górski, K. M. Gregorio, A. GRUPPUSO, ALESSANDRO Hansen, F. K. Harrison, D. L. Hildebrandt, S. R. Hivon, E. Holmes, W. A. Hora, J. L. Hornstrup, A. Hovest, W. Huffenberger, K. M. Jaffe, T. R. Jones, W. C. Juvela, M. Keihänen, E. Keskitalo, R. Kisner, T. S. Knoche, J. Kunz, M. Kurki-Suonio, H. Lähteenmäki, A. Lamarre, J. -M. Lasenby, A. Lawrence, C. R. Leonardi, R. LETO, PAOLO Lilje, P. B. Linden-Vørnle, M. López-Caniego, M. Macías-Pérez, J. F. Maffei, B. Maino, D. Mandolesi, N. Martin, P. G. Masi, S. MASSARDI, MARCELLA Matarrese, S. Mazzotta, P. Mendes, L. Mennella, A. Migliaccio, M. Miville-Deschênes, M. -A. Moneti, A. Montier, L. MORGANTE, GIANLUCA Mortlock, D. Munshi, D. Murphy, J. A. Naselsky, P. Nati, F. Natoli, P. Noviello, F. Novikov, D. Novikov, I. Pagano, L. Pajot, F. Paladini, R. PAOLETTI, DANIELA Peel, M. Perdereau, O. Perrotta, F. Piacentini, F. Piat, M. Pietrobon, D. Plaszczynski, S. Pointecouteau, E. Polenta, G. Popa, L. Pratt, G. W. Procopio, P. Prunet, S. Puget, J. -L. Rachen, J. P. Reinecke, M. Remazeilles, M. RICCIARDI, SARA Riller, T. Ristorcelli, I. Rocha, G. Rosset, C. Roudier, G. Rubiño-Martín, J. A. Rusholme, B. SANDRI, MAURA Savini, G. Scott, D. Spencer, L. D. Stolyarov, V. Sutton, D. Suur-Uski, A. -S. Sygnet, J. -F. Tauber, J. A. TERENZI, LUCA Toffolatti, L. Tomasi, M. TRIGILIO, CORRADO Tristram, M. Trombetti, T. Tucci, M. UMANA, Grazia Maria Gloria Valiviita, J. Van Tent, B. Vielva, P. VILLA, FABRIZIO Wade, L. A. Wandelt, B. D. ZACCHEI, Andrea Zijlstra, A. Zonca, A. |
Issue Date: | 2015 | Journal: | ASTRONOMY & ASTROPHYSICS | Number: | 573 | First Page: | A6 | 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. | Acknowledgments: | The development of Planck has been supported by: ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MICINN, JA and RES (Spain); Tekes, AoF and CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); and PRACE (EU). A description of the Planck Collaboration and a list of its members, including the technical or scientific activities in which they have been involved, can be found at http://www.sciops.esa.int/index.php?project=planckpage=Planck_Collaboration The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. L. Cerrigone acknowledges funding from the Spanish Consejo Superior de Investigaciones Científicas through a JAE-Doc research contract, co-funded by the European Social Fund. L. C. thanks the Spanish MICINN for funding support through grants AYA2009-07304 and CSD2009-00038. | URI: | http://hdl.handle.net/20.500.12386/23084 | URL: | https://www.aanda.org/articles/aa/abs/2015/01/aa23836-14/aa23836-14.html http://arxiv.org/abs/1403.4723v2 |
ISSN: | 0004-6361 | DOI: | 10.1051/0004-6361/201423836 | Bibcode ADS: | 2015A&A...573A...6P | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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