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A metallicity-spin temperature relation in damped Lyman- systems
Nissim Kanekar, Alain Smette, Frank H. Briggs +1
We report evidence for an anti-correlation between spin temperature and metallicity [Z/H], detected at significance in a sample of 26 damped Lyman- absorbers (DLAs…
The HI gas content of galaxies around Abell 370, a galaxy cluster at z = 0.37
Philip Lah, Michael B. Pracy, Jayaram N. Chengalur +6
We used observations from the Giant Metrewave Radio Telescope to measure the atomic hydrogen gas content of 324 galaxies around the galaxy cluster Abell 370 at a redshift of z = 0.…
A GPU based real-time software correlation system for the Murchison Widefield Array prototype
Randall B. Wayth, Lincoln J. Greenhill, Frank H. Briggs
Modern graphics processing units (GPUs) are inexpensive commodity hardware that offer Tflop/s theoretical computing capacity. GPUs are well suited to many compute-intensive tasks i…
The Murchison Widefield Array: Design Overview
Colin J. Lonsdale, Roger J. Cappallo, Miguel F. Morales +45
The Murchison Widefield Array (MWA) is a dipole-based aperture array synthesis telescope designed to operate in the 80-300 MHz frequency range. It is capable of a wide range of sci…