Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Foreground removal using fastica: A showcase of LOFAR-EoR
Monthly Notices of the Royal Astronomical Society, Volume 423, No. 3, Year 2012
Notification
URL copied to clipboard!
Description
We introduce a new implementation of the fastica algorithm on simulated Low Frequency Array Epoch of Reionization data with the aim of accurately removing the foregrounds and extracting the 21-cm reionization signal. We find that the method successfully removes the foregrounds with an average fitting error of 0.5per cent and that the 2D and 3D power spectra are recovered across the frequency range. We find that for scales above several point spread function scales, the 21-cm variance is successfully recovered though there is evidence of noise leakage into the reconstructed foreground components. We find that this blind independent component analysis technique provides encouraging results without the danger of prior foreground assumptions. © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS.
Authors & Co-Authors
Chapman, Emma
United Kingdom, London
University College London
Abdalla, Fillipe Batoni
United Kingdom, London
University College London
Harker, Geraint J.A.
United States, Boulder
University of Colorado Boulder
United States, Washington, D.c.
National Aeronautics and Space Administration
Jelić, Vibor
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Labropoulos, Panagiotis
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Netherlands, Groningen
Rijksuniversiteit Groningen
Zaroubi, Saleem
Netherlands, Groningen
Rijksuniversiteit Groningen
Brentjens, Michiel A.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
de Bruyn, A. Ger
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Netherlands, Groningen
Rijksuniversiteit Groningen
Koopmans, Léon V.E.
Netherlands, Groningen
Rijksuniversiteit Groningen
Statistics
Citations: 143
Authors: 9
Affiliations: 5
Identifiers
Doi:
10.1111/j.1365-2966.2012.21065.x
ISSN:
00358711
Research Areas
Disability