2024-03-19T09:02:04Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/457562018-06-25T07:07:10Zcom_10261_37com_10261_4col_10261_290
00925njm 22002777a 4500
dc
Lanz, L. F.
author
Herranz, D.
author
Sanz, J. L.
author
González-Nuevo, J.
author
López-Caniego, M.
author
2010-04
In this work, we deal with the problem of simultaneous multifrequency detection of extragalactic point sources in maps of the Cosmic Microwave Background. We developed a linear filtering technique that takes into account the spatial and the cross-power spectrum information at the same time. By using realistic simulations, we compared this technique with the monofrequency matched filter in terms of completeness, reliability, flux and spectral index accuracy. The multifrequency method outperforms the matched filter in all the studied cases in this work.
Monthly Notices of the Royal Astronomical Society 403(4): 2120-2130 (2010)
0035-8711
http://hdl.handle.net/10261/45756
10.1111/j.1365-2966.2010.16260.x
1365-2966
Methods: data analysis
Techniques: image processing
Surveys
Cosmic microwave background
Radio continuum: galaxies
A multifrequency method based on the matched multifilter for the detection of point sources in CMB maps