Image: The galactic center in radio from MeerKAT

Image: The galactic center in radio from MeerKAT
Credit: Photo, Ian Heywood (Oxford U.), SARAO; Color Processing, Juan Carlos Munoz-Mateos(ESO)

What's happening at the center of our galaxy? It's hard to tell with optical telescopes since visible light is blocked by intervening interstellar dust.

In other bands of light, though, such as radio, the galactic center can be imaged and shows itself to be quite an interesting and active place. The featured picture shows the latest image of our Milky Way's center by the MeerKAT array of 64 radio dishes in South Africa. Spanning four times the angular size of the moon (2 degrees), the image is impressively vast, deep, and detailed. Many known sources are shown in clear detail, including many with a prefix of Sgr, since the is in the direction of the constellation Sagittarius. In our galaxy's center lies Sgr A, found here in the image center, which houses the Milky Way's central supermassive black hole. Other in the image are not as well understood, including the Arc, just to the left of Sgr A, and numerous filamentary threads.

Goals for MeerKAT include searching for radio emission from emitted in a much younger universe and brief but distant radio flashes.


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Provided by NASA
Citation: Image: The galactic center in radio from MeerKAT (2022, February 21) retrieved 25 June 2022 from https://phys.org/news/2022-02-image-galactic-center-radio-meerkat.html
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