Planck intermediate results XXXI. Microwave survey of Galactic supernova remnants

M. Arnaud, M. Ashdown, F. Atrio-Barandela, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, E. Battaner, K. Benabed, A. Benoit-Levy, J. -P Bernard, M. Bersanelli, P. Bielewicz, J. Bobin, J. R. Bond, J. Borrill, F. R. Bouchet, C. L. Brogan, C. Burigana, J. -F. CardosoA. Catalano, A. Chamballu, H. C. Chiang, P. R. Christensen, S. Colombi, L. P. L. Colombo, B. P. Crill, A. Curto, F. Cuttaia, R. D. Davies, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, F. -X. Desert, C. Dickinson, J. M. Diego, S. Donzelli, O. Dore, X. Dupac, T. A. Ensslin, H. K. Eriksen, F. Finelli, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, S. Galeotta, K. Ganga, M. Giard, Y. Giraud-Heraud, J. Gonzalez-Nuevo, K. M. Gorski, A. Gregorio, A. Gruppuso, F. K. Hansen, D. L. Harrison, C. Hernandez-Monteagudo, D. Herranz, S. R. Hildebrandt, M. Hobson, W. A. Holmes, K. M. Huffenberger, A. H. Jaffe, T. R. Jaffe, E. Keihaenen, R. Keskitalo, T. S. Kisner, R. Kneissl, J. Knoche, M. Kunz, H. Kurki-Suonio, A. Lahteenmaki, J. -M. Lamarre, A. Lasenby, C. R. Lawrence, R. Leonardi, M. Liguori, P. B. Lilje, M. Linden-Vørnle, M. Lopez-Caniego, P. M. Lubin, D. Maino, M. Maris, D. J. Marshall, P. G. Martin, E. Martinez-Gonzalez, S. Masi, S. Matarrese, P. Mazzotta, A. Melchiorri, L. Mendes, A. Mennella, M. Migliaccio, M-A Miville-Deschenes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, E. Noviello, D. Novikov, I. Novikov, N. Oppermann, C. A. Oxborrow, L. Pagano, Fernand Pajot, R. Paladini, F. Pasian, M. Peel, O. Perdereau, F. Perrotta, F. Piacentini, M. Piat, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, L. Popa, G. W. Pratt, J. -L. Puget, J. P. Rachen, W. T. Reach, W. Reich, M. Reinecke, M. Remazeilles, C. Renault, J. Rho, S. Ricciardi, T. Riller, I. Ristorcelli, G. Rocha, C. Rosset, G. Roudier, B. Rusholme, M. Sandri, G. Savini, D. Scott, V. Stolyarov, D. Sutton, A. -S. Suur-Uski, J. -F. Sygnet, J. A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, M. Tucci, G. Umana, L. Valenziano, J. Valiviita, B. Van Tent, P. Vielva, F. Villa, L. A. Wade, D. Yvon, A. Zacchei, A. Zonca

Research output: Contribution to journalJournal articleResearchpeer-review

181 Downloads (Pure)

Abstract

The all-sky Planck survey in 9 frequency bands was used to search for emission from all 274 known Galactic supernova remnants. Of these, 16 were detected in at least two Planck frequencies. The radio-through-microwave spectral energy distributions were compiled to determine the mechanism for microwave emission. In only one case, IC 443, is there high-frequency emission clearly from dust associated with the supernova remnant. In all cases, the low-frequency emission is from synchrotron radiation. As predicted for a population of relativistic particles with energy distribution that extends continuously to high energies, a single power law is evident for many sources, including the Crab and PKS 1209-51/52. A decrease in flux density relative to the extrapolation of radio emission is evident in several sources. Their spectral energy distributions can be approximated as broken power laws, Sv proportional to v, with the spectral index, α, increasing by 0.5-1 above a break frequency in the range 10-60 GHz. The break could be due to synchrotron losses.
Original languageEnglish
Article numberA134
JournalAstronomy & Astrophysics
Volume586
Number of pages21
ISSN0004-6361
DOIs
Publication statusPublished - 2016

Keywords

  • ISM: supernova remnants
  • Radio continuum: ISM
  • Supernova Remnants: Individual: G21.5-0.9, W 44, CTB 80, Cygnus Loop, HB 21, Cas A, Tycho, 3C 58, Crab, IC 443, Puppis A, Vela, PKS 2109-51/52, RCW 86, MSH 15-5 6 , SN 1006

Fingerprint Dive into the research topics of 'Planck intermediate results XXXI. Microwave survey of Galactic supernova remnants'. Together they form a unique fingerprint.

Cite this