Stunning view of the Sombrero Galaxy captured by James Webb

By Georgina Torbet Published November 25, 2024

The NASA/ESA/CSA James Webb Space Telescope recently imaged the Sombrero galaxy with its MIRI (Mid-Infrared Instrument), resolving the clumpy nature of the dust along the galaxy’s outer ring. The mid-infrared light highlights the gas and dust that are part of star formation taking place among the Sombrero galaxy’s outer disk. The rings of the Sombrero galaxy produce less than one solar mass of stars per year, in comparison to the Milky Way’s roughly two solar masses a year. It’s not a particular hotbed of star formation. The Sombrero galaxy is around 30 million light-years from Earth in the constellation Virgo. — The NASA/ESA/CSA James Webb Space Telescope recently imaged the Sombrero galaxy with its MIRI (Mid-Infrared Instrument), resolving the clumpy nature of the dust along the galaxy’s outer ring. The mid-infrared light highlights the gas and dust that are part of star formation taking place among the Sombrero galaxy’s outer disk. The rings of the Sombrero galaxy produce less than one solar mass of stars per year, in comparison to the Milky Way’s roughly two solar masses a year. It’s not a particular hotbed of star formation. The Sombrero galaxy is around 30 million light-years from Earth in the constellation Virgo. NASA, ESA, CSA, STScI

A new image from the James Webb Space Telescope shows a stunning and fashionable sight: the Sombrero Galaxy, named for its resemblance to the traditional Mexican hat. With its wide, flat shape reminiscent of the hat’s wide brim, the galaxy, also known as Messier 104, has outer rings that are clearly visible for the first time.

The Sombrero Galaxy is located 30 million light-years away, in the constellation of Virgo, and it has been previously imaged by the Hubble Space Telescope. But while in the Hubble image, the galaxy appears as an opaque, pale disk, in the new Webb image you can see an outer blue disk, with a small bright core right at the center.

This image compares the view of the famous Sombrero Galaxy in mid-infrared light (top) and visible light (bottom). The James Webb Space Telescope’s MIRI (Mid-Infrared Instrument) reveals the smooth inner disk of the galaxy, while the Hubble Space Telescope’s visible light image shows the large and extended glow of the central bulge of stars.Both the Webb and Hubble images resolve the clumpy nature of the dust that makes up the Sombrero galaxy’s outer ring. — This image compares the view of the famous Sombrero Galaxy in mid-infrared light (top) and visible light (bottom). The James Webb Space Telescope’s MIRI (Mid-Infrared Instrument) reveals the smooth inner disk of the galaxy, while the Hubble Space Telescope’s visible light image shows the large and extended glow of the central bulge of stars. Both the Webb and Hubble images resolve the clumpy nature of the dust that makes up the Sombrero galaxy’s outer ring. NASA, ESA, CSA, STScI, Hubble Heritage Team (STScI/AURA)

The difference in the two images is because of the different wavelengths that the telescopes operate in. Hubble takes images primarily in the visible light part of the spectrum, which is the same wavelength as our eyes see, and galaxies with large amounts of dust like the Sombrero therefore appear opaque. But Webb operates in the infrared portion of the spectrum, meaning it can peer through the dust to see structures that would otherwise be invisible.

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The Webb image also shows more detail about the dust that makes up the outer portion of the galaxy’s ring. If you look closely, you can see that the blue-white shape is clumpy, with dust unevenly distributed in pockets that are denser in some places than others. This region is interesting to scientists because it is contains molecules called polycyclic aromatic hydrocarbons that are usually found in regions where many young stars are forming. But the rate of star formation in this galaxy is quite low, with the rings of the Sombrero producing half as many stars per year as our own galaxy.

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Another feature of this image is the bright glow at the galaxy’s center, which is an area around the galaxy’s supermassive black hole called an active galactic nucleus (AGN). This region isn’t as bright as some other AGNs, as the black hole at the center is relatively calm, not chowing down on huge amounts of material as is seen in some other galaxies.

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Georgina Torbet

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Georgina has been the space writer at Digital Trends space writer for six years, covering human space exploration, planetary…

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