by APOD Robot » Wed Feb 02, 2022 5:05 am
The Galactic Center in Radio from MeerKAT
Explanation: 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
galactic center 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 sources 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 neutral hydrogen emitted in a much younger universe and brief but distant
radio flashes.
[url=https://apod.nasa.gov/apod/ap220202.html] [img]https://apod.nasa.gov/apod/calendar/S_220202.jpg[/img] [size=150]The Galactic Center in Radio from MeerKAT[/size][/url]
[b] Explanation: [/b] What's happening at the center of our galaxy? It's hard to tell with optical telescopes since [url=https://science.nasa.gov/ems/09_visiblelight]visible light[/url] is blocked by intervening interstellar dust. In other bands of light, though, such as [url=https://science.nasa.gov/ems/05_radiowaves]radio[/url], the [url=https://apod.nasa.gov/apod/ap180729.html]galactic center[/url] can be imaged and shows itself to be quite an [url=https://www.sarao.ac.za/media-releases/new-meerkat-radio-image-reveals-complex-heart-of-the-milky-way/]interesting and active place[/url]. The [url=https://flickr.com/photos/astro_jcm/51847931721/]featured picture[/url] shows the latest image of our Milky Way's center by the [url=https://www.sarao.ac.za/gallery/meerkat/]MeerKAT array[/url] of 64 radio dishes in [url=https://en.wikipedia.org/wiki/South_Africa]South Africa[/url]. Spanning four times the angular size of [url=https://solarsystem.nasa.gov/moons/earths-moon/overview/]the Moon[/url] (2 [url=https://www.mathsisfun.com/geometry/degrees.html]degrees[/url]), the image is impressively vast, deep, and detailed. [url=https://apod.nasa.gov/apod/ap020803.html]Many known sources[/url] are shown in clear detail, including many with a prefix of Sgr, since the [url=https://www.youtube.com/watch?v=dXAU0gzsPOw]galactic center[/url] is in the direction of the [url=https://en.wikipedia.org/wiki/Sagittarius_(constellation)]constellation Sagittarius[/url]. In our Galaxy's Center lies [url=https://en.wikipedia.org/wiki/Sagittarius_A]Sgr A[/url], found here in the image center, which houses the Milky Way's central supermassive black hole. Other sources in the image are not as well understood, including [url=https://apod.nasa.gov/apod/ap020521.html]the Arc[/url], just to the left of [url=https://apod.nasa.gov/apod/ap180122.html]Sgr A[/url], and numerous filamentary threads. [url=https://www.sarao.ac.za/large-survey-projects/]Goals for MeerKAT[/url] include searching for radio emission from neutral hydrogen emitted in a much younger universe and brief but distant [url=http://astronomy.swin.edu.au/cosmos/F/Fast+Radio+Bursts]radio flashes[/url].
[table][tr][td=left][url=https://asterisk.apod.com/discuss_apod.php?date=220201][b]<< Previous APOD[/b][/url][/td] [td=center][url=https://asterisk.apod.com/view_retro.php?date=0202][b]This Day in APOD[/b][/url][/td] [td=right][url=https://asterisk.apod.com/discuss_apod.php?date=220203][b]Next APOD >>[/b][/url][/td][/tr][/table]