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Unveiling Hidden Complexities of the Cat’s Eye Nebula: Insights from Hubble and Euclidean Telescopes

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Recent images from the NASA/ESA Hubble Space Telescope and the ESA’s Euclid mission showcase the intricate multi-shell structure of the fascinating planetary nebula NGC 6543, famously known as the Cat’s Eye Nebula.

This mesmerizing image from Euclid encapsulates the panoramic view of the Cat’s Eye Nebula. Image credits: NASA / ESA / Hubble / Euclid Consortium / J.-C. Cuillandre & E. Bertin, CEA Paris-Saclay / Z. Tsvetanov.

The Cat’s Eye Nebula, located roughly 4,300 light-years away in the constellation Draco, has intrigued astronomers for decades due to its complex, multi-layered architecture.

“Planetary nebulae,” as they are called, derive their name from their round appearance in early telescopic observations; they are actually colossal gas clouds expelled from stars nearing the end of their life cycle,” the Hubble and ESA astronomers explained.

This insight was initially uncovered in 1864 using the Cat’s Eye Nebula itself. Studying its light spectrum allows scientists to identify individual molecules, a characteristic that differentiates planetary nebulae from stars and galaxies.

Near-infrared and visible-light imagery from the Euclid mission illustrates the arcs and filaments of the nebula’s luminous core, enveloped in a mist of vibrant gas debris that is retreating from the star.

“This ring was expelled from the star prior to the formation of the central nebula,” the astronomers noted.

“The entire nebula is prominently set against a backdrop brimming with distant galaxies, exemplifying how local astrophysical wonders and the farthest reaches of the universe coexist in today’s astronomical surveys.”

In this remarkable image, Hubble captures the swirling gas core of the Cat’s Eye Nebula. Image credits: NASA / ESA / Hubble / Z. Tsvetanov.

Through a wide-field lens, Hubble has captured stunning high-resolution visible-light images of the nebula’s swirling gas core.

The data reveals an intricate tapestry of features that appear almost surreal, including concentric shells, high-velocity gas jets, and dense knots shaped by impact interactions,” the researchers stated.

“These structures are believed to document the transient mass loss from the dying star at the nebula’s center, creating a cosmic ‘fossil record’ of its final evolution.”

“The combination of Hubble’s focused observations and Euclid’s deep-field data not only emphasizes the nebula’s delicate structure but also situates it in the broader cosmic landscape explored by both telescopes.”

“Together, these missions offer a rich, complementary view of NGC 6543, illuminating the subtle interplay between a star’s end-of-life processes and the vast universe that surrounds it.”

Source: www.sci.news

First Data Drop from Euclidean Space Telescope Reveals 26 Million Galaxies

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Galactic sea photographed by the Euclidean Space Telescope

ESA/Euclid/Euclid Consortium/NASA, J.-C. Image processing by Cuillandre, E. Bertin, G. Anselmi

The extraordinary image from the Euclidean Space Telescope has acquired 26 million galaxies.

Euclid was launched by the European Space Agency (ESA) in July 2023, and in November of that year it sent its first image back. The six-year mission will image about a third of the sky and build the most detailed 3D map of Cosmos ever created. Once completed, this investigation will help to lighten how dark matter and dark energy behave on a cosmic scale.

ESA is currently being released The first large data on this missionstarts with three “deep fields.” This is an area where the telescope becomes a more detailed peer than the rest of the study area. These three spots represent 63 squares of sky, which corresponds to an area where the full moon is covered 300 times. Over the next few years, Euclide will pass these regions 30-52 times to build more detailed images.

It'll be Percival The University of Waterloo in Canada says that current batches of images are less than 50% of what gather on missions, but there is already plenty of researchers to collaborate. “There's so much you can do about many individual galaxies and their properties because it's not something that's done in space-based research with nearby infrared light or optics like this,” he says. “It's not exactly the same quality as HST [the Hubble Space Telescope]but it's so close that it doesn't just point to individual objects and shoot. We are conducting an investigation. ”

Researchers have already used Euclidean data to find hundreds of powerful gravity lenses. These phenomena are formed when the gravity of an object in the foreground distorts light from a distant galaxy, creating an arc shape or a complete ring. Previously, scientists had to hunt these individually, point them to the HST, and collect more images. Currently, astronomers can search for survey data from Euclidean and find more at once. This helps to gather insights into the evolution of galaxies and the universe.

Using AI models, researchers were able to find and catalog 500 galaxies with powerful gravity lenses with this first data alone, doubling the total seen to date. “The statistics are incredible,” Percival says. “Euclidean ultimately gets this amount of data 200 times.”

The data released so far represents only one week of images from Euclidean, but up to 35 terabytes. This is equivalent to 200 days of high quality video streaming. The next batch of data is expected to be released later next year, and will be a year's worth of images covering 2,000 square degrees and over 2,000 terabytes of storage space.

It can take over 100 years to view each galaxy manually, so AI is used to dramatically speed up the process, he says. Mike Walmsley At the University of Toronto. “We can ask new questions in weeks, not years, but in weeks,” he says.

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Source: www.newscientist.com