A stunning image of the starburst galaxy NGC 4303 shows different elements in different colors, giving a peek into how stars form.
From Hubble to the James Webb Space Telescope, when you think of the tools that capture images of space some of the first examples that come to mind are likely to be space-based telescopes. These telescopes have the advantage of being above the water vapor in Earth’s atmosphere which can distort readings, and allows them to look out at the universe in great detail.
One such ground-based telescope is the European Southern Observatory ’s Very Large Telescope. As the name suggests it is indeed very large, being made up of four separate telescopes each of which has an 8.2-meter primary mirror and which work together to look out at space in the visible light and infrared wavelengths.
ESO recently shared this image taken by the MUSE instrument, showing the stunning spiral galaxy NGC 4303. This image represents spectroscopy data which has been colorized to show different elements which are present, collected as part of the Physics at High Angular resolution in Nearby GalaxieS project. This galaxy is a type called a starburst galaxy, meaning it is a site of vigorous star formation, and studying it can help us learn about how stars are born.
“Stars form when clouds of cold gas collapse,” ESO explains. “The energetic radiation from newly born stars will heat and ionize the surrounding remaining gas. The ionized gas will shine, acting as a beacon of ongoing star formation. In this stunning and jewel-like image, this glowing gas can be seen as the whirlpool of gold: the direct traces of stars being born.
“The golden glow is a result of combining observations taken at different wavelengths of light with the Multi-Unit Spectroscopic Explorer instrument on ESO’s Very Large Telescope in Chile. Here gas clouds of ionized oxygen, hydrogen, and sulfur are shown in blue, green, and red, respectively.”
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