Events Calendar
Results from the GaLactic and Extragalactic All-sky MWA Survey
Thursday September 28, 2017
2:00 pm
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Presenter: |
Luke Hindson (University of Hertfordshire)
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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.
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Host: | Gregory Taylor | |
Location: | PAIS-2540, PAIS | |