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Outback Telescope Captures Milky Way Center, Discovers Remnants of Dead Stars

26 Nov 2019, 16:42 UTC
Outback Telescope Captures Milky Way Center, Discovers Remnants of Dead Stars
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A radio telescope in the Western Australian outback has captured a spectacular new view of the center of the galaxy in which we live, the Milky Way. The image from the Murchison Widefield Array (MWA) telescope shows what our galaxy would look like if human eyes could see radio waves.Astrophysicist Dr Natasha Hurley-Walker, from the Curtin University node of the International Centre for Radio Astronomy Research (ICRAR), created the images using the Pawsey Supercomputing Centre in Perth.“This new view captures low-frequency radio emission from our galaxy, looking both in fine detail and at larger structures,” she said.“Our images are looking directly at the middle of the Milky Way, towards a region astronomers call the Galactic Centre.”The data for the research comes from the GaLactic and Extragalactic All-sky MWA survey, or ‘GLEAM’ for short.The survey has a resolution of two arcminutes (about the same as the human eye) and maps the sky using radio waves at frequencies between 72 and 231 MHz (FM radio is near 100 MHz).“It’s the power of this wide frequency range that makes it possible for us to disentangle different overlapping objects as we look toward the complexity of the Galactic Centre,” Dr Hurley-Walker said.“Essentially, different objects ...

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