http://www.cnr.it/ontology/cnr/individuo/prodotto/ID199880
A Bayesian technique for the detection of point sources in CMB maps (Articolo in rivista)
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- A Bayesian technique for the detection of point sources in CMB maps (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1111/j.1365-2966.2011.18398.x (literal)
- Alternative label
Argueso F., Salerno E., Herranz D., Sanz J. L., Kuruoglu E. E., Kayabol K. (2011)
A Bayesian technique for the detection of point sources in CMB maps
in Monthly notices of the Royal Astronomical Society (Online)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Argueso F., Salerno E., Herranz D., Sanz J. L., Kuruoglu E. E., Kayabol K. (literal)
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- Pagina fine
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- Kuruoglu, Ercan Engin (1); Salerno, Emanuele (1); KAYABOL, KORAY (1); Herranz, Diego (2); Sanz, Jose Luis (2); Argüeso, Francisco (3). Project: Planck Surveyor Satellite, PLANCK (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2011.18398.x/pdf (literal)
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- PuMa (literal)
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- Departamento de Matemáticas, Universidad de Oviedo, Spain; CNR-ISTI, Pisa, Italy; Instituto de Fisica de Cantabria, Santander (literal)
- Titolo
- A Bayesian technique for the detection of point sources in CMB maps (literal)
- Abstract
- The detection and flux estimation of point sources in cosmic microwave background (CMB) maps is a very important task in order to clean the maps and also to obtain relevant astrophysical information. In this paper we propose a maximum a posteriori (MAP) approach detection method in a Bayesian scheme which incorporates prior information about the source flux distribution, the locations and the number of sources. We apply this method to CMB simulations with the characteristics of the Planck satellite channels at 30, 44, 70 and 100 GHz. With a similar level of spurious sources, our method yields more complete catalogues than the matched filter with a 5 sigma threshold. Besides, the new technique allows us to fix the number of detected sources in a non-arbitrary way. (literal)
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