International Center for Radio Astronomy Research | 2016 Oct 26
[c][attachment=0]GLEAM_still_2_small[1].jpg[/attachment][/c][hr][/hr]A telescope located deep in the West Australian outback has shown what the Universe would look like if human eyes could see radio waves.
Published today in the Monthly Notices of the Royal Astronomical Society, the GaLactic and Extragalactic All-sky MWA, or ‘GLEAM’ survey, has produced a catalogue of 300,000 galaxies observed by the Murchison Widefield Array (MWA), a $50 million radio telescope located at a remote site northeast of Geraldton.
Lead author Dr Natasha Hurley-Walker, from Curtin University and the International Centre for Radio Astronomy Research (ICRAR), said this is the first radio survey to image the sky in such amazing technicolour.
“The human eye sees by comparing brightness in three different primary colours – red, green and blue,” Dr Hurley-Walker said. “GLEAM does rather better than that, viewing the sky in 20 primary colours. ...
GLEAM is a large-scale, high-resolution survey of the radio sky observed at frequencies from 70 to 230 MHz, observing radio waves that have been travelling through space—some for billions of years. ...
GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) Survey
I: A Low-Frequency Extragalactic Catalogue - N. Hurley-Walker et al
- Monthly Notices of the RAS 464(1):1146 (2017 Jan 01) DOI: 10.1093/mnras/stw2337 (pdf)
