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Ashdown, M.; Atrio-Barandela, F.; Aumont, J.; Baccigalupi, C.; Benoit-Lévy, A.; Bielewicz, P.; Bobin, J.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Chamballu, A.; Chiang, H. C.; Christensen, P. R.; Colombo, L. P. L.; Crill, B. P.; Curto, A.; Davies, R. D.; de Bernardis, P.; de Rosa, A.; Désert, F.-X.; Diego, J. M.; Doré, O.; Dupac, X.; Enßlin, T. A.; Eriksen, H. K.; Forni, O.; Fraisse, A. A.; Franceschi, E.; Giraud-Héraud, Y.; Gruppuso, A.; Harrison, D. L.; Hobson, M.; Huffenberger, K. M.; Jaffe, A. H.; Keihänen, E.; Keskitalo, R.; Knoche, J.; Kurki-Suonio, H.; Lähteenmäki, A.; Lamarre, J.-M.; Lawrence, C. R.; Liguori, M.; Linden-Vørnle, M.; López-Caniego, M.; Lubin, P. M.; Maino, D.; Marshall, D. J.; Martínez-González, E.; Masi, S.; Mazzotta, P.; Melchiorri, A.; Mendes, L.; Mennella, A.; Migliaccio, M.; Moneti, A.; Montier, L.; Mortlock, D.; Munshi, D.; Murphy, J. A.; Naselsky, P.; Nati, F.; Noviello, F.; Novikov, D.; Novikov, I.; Oppermann, N.; Oxborrow, C. A.; Pajot, F.; Paladini, R.; Pasian, F.; Peel, M.; Perdereau, O.; Perrotta, F.; Piacentini, F.; Pietrobon, D.; Pratt, G. W.; Puget, J.-L.; Reach, W. T.; Reich, W.; Reinecke, M.; Remazeilles, M.; Rho, J.; Ricciardi, S.; Riller, T.; Ristorcelli, I.; Rocha, G.; Rusholme, B.; Savini, G.; Scott, D.; Sutton, D.; Suur-Uski, A.-S.; Sygnet, J.-F.; Tauber, J. A.; Terenzi, L.; Tomasi, M.; Valenziano, L.; Van Tent, B.; Villa, F.; Wade, L. A.; Yvon, D.; Zonca, A.
Astronomy and astrophysics (Berlin), 02/2016, Letnik: 586Journal Article
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, Sν ∝ ν−α, 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.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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