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Center for Astrophysics Research and Technologies Seminar Series Information


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Results from the GaLactic and Extragalactic All-sky MWA Survey

Thursday September 28, 2017
2:00 pm

 Presenter:  Luke Hindson (University of Hertfordshire)
 Series:  Center for Astrophysics Research and Technologies Seminar Series
 Abstract:  The Murchison Widefield Array has completed the most detailed survey of the southern sky, between 72 and 231 MHz, to date. The GaLactic and Extragalactic All-sky MWA (GLEAM) Survey has produced a robust catalogue of more than 300,000 extragalactic radio sources with a resolution of ~2.5 arcminutes and sensitivity of ~50 mJy for almost the entire sky south of +30 degrees with a flux scale accuracy of better than 10%. The GLEAM survey has also produced a map of the Milky Way between 260 < l < 340 allowing us to catalogue HII regions, SNRs, and study the diffuse Galactic background. I will present the challenges we have encountered in producing these catalogues, methods of source-extraction and characterisation, and discuss issues inherent to low frequency, wide field-of-view all-sky surveys such as GLEAM. I will present results from our extragalactic and Galactic catalogues, other scientific highlights, and upcoming science that has been made possible by GLEAM.
 Host:  Gregory Taylor
 Location:  Room 190, Physics & Astronomy

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