Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5352
Title: Fast holographic deconvolution: a new technique for Precision radio interferometry
Authors: Sullivan, I.S.
Morales, M.F.
Hazelton, B.J.
Deshpande, A.A.
Prabu, T.
Roshi, Anish D.
Udaya Shankar, N.
Srivani, K.S.
Subrahmanyan, Ravi
+40 Co-authors
Keywords: dark ages
reionization
first stars – techniques
image processing -– techniques
Issue Date: Nov-2012
Publisher: IOP Publishing for the American Astronomical Society
Citation: The Astrophysical Journal, 2012, 759, 17,
Abstract: We introduce the Fast Holographic Deconvolution method for analyzing interferometric radio data. Our new method is an extension ofA-projection/software-holography/forwardmodeling analysis techniques and shares their precision deconvolution and wide-field polarimetry, while being significantly faster than current implementations that use full direction-dependent antenna gains. Using data from the MWA 32 antenna prototype, we demonstrate the effectiveness and precision of our newalgorithm. Fast HolographicDeconvolutionmay be particularly important for upcoming 21 cm cosmology observations of the Epoch of Reionization and Dark Energy where foreground subtraction is intimately related to the precision of the data reduction
Description: Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI: http://hdl.handle.net/2289/5352
ISSN: 0004-637X
1538-4357-(Online)
Alternative Location: http://adsabs.harvard.edu/abs/2012ApJ...759...17S
http://arxiv.org/abs/1209.1653
http://dx.doi.org/10.1088/0004-637X/759/1/17
Copyright: 2012 The American Astronomical Society
Appears in Collections:Research Papers (A&A)

Files in This Item:
File Description SizeFormat 
2012_AJ_759_17.pdf
  Restricted Access
Restricted Access1.27 MBAdobe PDFView/Open Request a copy


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.