Hemispheric Imaging of Galactic Neutral Hydrogen with a Phased Array Antenna System

  • Stefan J. Wijnholds
  • A. Ger De Bruyn
  • Jaap D. Bregman
  • Jan-Geralt Bij De Vaate
Chapter

Abstract

The thousand element array (THEA) system is a phased array system consisting of 1 m2 tiles having 64 Vivaldi elements each, arranged on a regular 8-by-8 grid, which has been developed as a demonstrator of technology and applicability for SKA. In this paper we present imaging results of Galactic neutral hydrogen with THEA. Measurements have been taken using a dense 2-by-2 array of four tiles as a four tile adder. The results are compared with results from the Leiden-Dwingeloo Survey, showing qualitative agreement, but also indicating that further studies are needed on the instrumental characteristics.

Keywords

Galactic neutral hydrogen imaging LOFAR phased array phased array antenna SKA Square Kilometre Array 

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References

  1. Hartmann, D.: 1994, The Leiden/Dwingeloo Survey of Galactic Neutral Hydrogen, PhD thesis, Leiden University, October.Google Scholar
  2. Hartmann, D. and Burton, W. B.: 1997, Atlas of Galactic Neutral Hydrogen, Cambridge University Press.Google Scholar
  3. Kant, G. W., Gunst, A. W., Kokkeler, A. B. J. and Smolders, A. B.: 2000, Proceedings of the SPIE Conference on Receiver Architecture of the Thousand Element Array (THEA), Vol. 4015.Google Scholar
  4. Vaate, J. G. bij de, and Kant, G.W.: 2002, The Phased Array Approach to SKA, Results of a Demonstrator Project’, in Proceedings of the European Microwave Conference, Milan, September.Google Scholar
  5. Vaate, J. G. bij de, Kant, G. W., Cappellen, W. A. van and Tol, S. van de: 2002, First Celestial Measurement Results of the Thousand Element Array, URSI-GA, Maastricht, August.Google Scholar

Copyright information

© Springer 2005

Authors and Affiliations

  • Stefan J. Wijnholds
    • 1
  • A. Ger De Bruyn
    • 1
  • Jaap D. Bregman
    • 1
  • Jan-Geralt Bij De Vaate
    • 1
  1. 1.ASTRONDwingelooThe Netherlands

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