Galactic Marvel: Hubble Captures a ‘Baseball Galaxy’ with a Black Hole Heart in Stunning Space Photo of the Week

ESO 420-G013 is a face-on spiral galaxy with an almost perfectly round disk and an active black hole lighting up its starry guts.

Hubble Captures an Image of Spiral Galaxy ESO 420-G013

ESO 420-G013’s perfectly round disk of stars resembles a baseball. Image credit: (Image credit: NASA/ESA/A. Evans (University of Virginia)/Processing: Gladys Kober (NASA/Catholic University of America))

The image shows a bright core and brownish filaments of dark dust, but the galaxy’s almost perfectly round disk is its most notable feature. That’s because Hubble, which has been in orbit around Earth since 1990, just happens to have a direct face-on view of ESO 420-G013.

Hubble Captures Baseball-Like Spiral Galaxy ESO 420-G013 - TechEBlog

Besides being a fine example of a spiral galaxy, ESO 420-G013 is a Seyfert galaxy. Named after American astronomer Carl Keenan Seyfert, who researched the objects in 1943, a Seyfert galaxy has an extremely bright, point-like active galactic nucleus powered by a supermassive black hole, according to a NASA statement. Deep within ESO 420-G013, its hungry black hole is pulling in surrounding material and sending out powerful radiation. It’s also forming new stars at a high rate.

Hubble Space Telescope captures luminous blue compact galaxy ESO 185-IG013 | Science News - News9live

A zoomed-in view of the face-on spiral galaxy  ESO 420-G013 (Image credit: NASA/ESA/A. Evans (University of Virginia)/Processing: Gladys Kober (NASA/Catholic University of America))

Seyfert galaxies like this one are visible in the infrared — wavelengths of light beyond those visible to humans in the electromagnetic spectrum — which Hubble can detect thanks to its Wide Field Camera 3, which is sensitive to ultraviolet, visible and infrared light.

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What’s special about ESO 420-G013 is its visibility. Most galaxies with active galactic nuclei host black holes so bright that their radiation entirely obscures the light of the host galaxy. However, Seyfert galaxies such as ESO 420-G013 are distinct, because the surrounding galaxy structure can be clearly detected.

ESO 420-G013 was captured by Hubble as part of research on luminous infrared galaxies, which are known for their intense brightness in the infrared spectrum.

Sia

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