The JWST revealed the presence of a second star in the Southern Ring Nebula. Now new observations shows a second ring of expanding gas.
The Southern Ring Nebula, or NGC 3132, was one of the first objects observed by the James Webb Space Telescope. Astronomers are digging more deeply into the nebula with additional observatories to expand their understanding of the structure. Image Credit: NASA/ESA/CSA/STScI
Researchers wanted to understand more about the Southern Ring Nebula’s structure. The JWST works in the infrared and can image warm hydrogen in the nebula. But to get a more complete image of the nebula, a team of researchers from the Rochester Institute of Technology turned to the This figure from the study shows the velocities of three molecules in NGC 3132 as measured by the SMA. From left to right:CO, and CN The images clearly show the primary ring in the nebula. Image Credit: Kastner et al. 2024.
This figure from the study shows the SMA observations of NGC 3132 in the left column and the JWST infrared image in the right column. The bottom images show the different velocities of molecules in the nebula. The light blue velocity shows the presence of the main ring, but the red and pink high-velocity clumps show the presence of a second ring. Image Credit: Kastner et al. 2024.
The Butterfly Nebula as imaged by the Hubble Space Telescope. Image Credit: By NASA, ESA and the Hubble SM4 ERO Team – http://www.hubblesite.org/newscenter/archive/releases/2009/25/image/f/, Public Domain, https://commons.wikimedia.org/w/index.php?curid=7777740
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