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

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

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004exa....17...59w&link_type=abstract

Experimental Astronomy, Volume 17, Issue 1-3, pp. 59-64

Astronomy and Astrophysics

Astronomy

1

Galactic Neutral Hydrogen, Imaging, Lofar, Phased Array, Phased Array Antenna, Ska, Square Kilometre Array

Scientific paper

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.

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