Extracting cosmic microwave background polarization from satellite astrophysical maps (Articolo in rivista)

Type
Label
  • Extracting cosmic microwave background polarization from satellite astrophysical maps (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1111/j.1365-2966.2004.08168.x (literal)
Alternative label
  • Baccigalupi C.; Perrotta F.; De Zotti G.; Smoot G.F.; Burigana C.; Maino D.; Bedini L.; Salerno E. (2004)
    Extracting cosmic microwave background polarization from satellite astrophysical maps
    in Monthly notices of the Royal Astronomical Society (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Baccigalupi C.; Perrotta F.; De Zotti G.; Smoot G.F.; Burigana C.; Maino D.; Bedini L.; Salerno E. (literal)
Pagina inizio
  • 55 (literal)
Pagina fine
  • 70 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 354 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Blackwell - Royal Astronomical Society, 2004. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) SISSA Trieste, INFN, LBNL Berkeley 2) SISSA Trieste, INFN, LBNL Berkeley 3) INAF, SISSA 4) LBNL Berkeley 5) ITeSRE-CNR, Bologna, Italy 6) INAF, Dipartimento di Fisica, Universita di Milano 7) IEI, CNR, Pisa (ISTI, CNR, Pisa) (literal)
Titolo
  • Extracting cosmic microwave background polarization from satellite astrophysical maps (literal)
Abstract
  • We present the application of the fast independent component analysis (FASTICA) technique for blind component separation to polarized astrophysical emission. We study how the cosmic microwave background (CMB) polarized signal, consisting of E and B modes, can be extracted from maps affected by substantial contamination from diffuse galactic foreground emission and instrumental noise. We implement Monte Carlo chains varying the CMB and noise realizations in order to assess the average capabilities of the algorithm and their variance. We perform the analysis of all-sky maps simulated according to the Planck satellite capabilities, modelling the sky signal as a superposition of teh CMB and of the existing simulated polarization templates of galactic synchrotron. Our results indicate that teh angular power spectrum of CMB E mode can be recovered an all scales up to l=1000, corresponding to the fourth acoustic oscillation, while the B-mode power spectrum can be detected, up to its turnover al l=100, if the ratio of tensor to scalar contributions to the temperature quadrupole exceeds 30 percent. The power spectrum of the cross-correlation between total intensity and polarization, TE, can be recovered up to l=1200, corresponding to the seventh TE acoustic oscillation. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it