Webb Telescope Reveals Stunning Details of the “Red Spider nebula”
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A new image captured by the James webb Space Telescope (JWST) offers an unprecedented look at the Red Spider Nebula (also known as NGC 6537), a dying star’s vibrant and complex remains located 12,420 light years away in the constellation Sagittarius. The nebula, first discovered on July 15, 1882, by American physicist and astronomer Edward Charles Pickering, showcases a striking structure reminiscent of a spider, thanks to plumes of ejected matter extending from its core.
A Stellar Demise Illuminated
Planetary nebulae, like the Red Spider Nebula, represent the final stage in the life cycle of stars similar in mass to our sun. As a star ages, it expands into a red giant, eventually cooling and collapsing. This collapse isn’t a quiet event; it’s a violent process that expels the star’s outer layers into space. The remaining core emits high-energy ultraviolet radiation, ionizing the expelled gas and causing it to glow, creating the breathtaking visuals we observe. According to experts at the National Astronomical Research Institute (NARIT), this entire process unfolds over a relatively short period – only tens of thousands of years – leaving behind stunning remnants.
Images from the JWST, utilizing the Near infrared Camera (NIRCam), reveal the central star glowing red. This contrasts sharply with data from the Hubble Space Telescope, where the star appears blue in visible light. This difference highlights NIRCam’s sensitivity to infrared light, allowing it to penetrate dust and gas clouds and reveal the star and surrounding hot gas more clearly.
Hints of a Binary System
Astronomers are increasingly suspecting that the heart of the Red Spider Nebula may not house a single star, but rather a binary star system. Evidence supporting this theory includes the potential for a disk structure forming around the center, as well as an “hourglass”-like structure and gas flowing outward. These features suggest a complex interaction between two stars.
“Spider Legs” and Stellar Winds
High-resolution images from the JWST have unveiled dramatic plumes of matter ejecting from the nebula’s center, resembling the legs of a spider. These filaments, extending up to three light-years, emit blue light from H2 molecules – composed of two hydrogen atoms – and form “bubble-like” structures that have been expanding for millennia.
Furthermore, astronomers have detected gas continuing to flow from the nebula’s center, forming an “S”-shaped structure with a purple hue. This structure indicates the presence of ionized iron atoms, a sign of a powerful stellar wind emanating from the central region and colliding with previously expelled material, creating the rippled patterns seen in the image.
Staying Informed
For more updates on science, technology, and IT news, including audio reports from Thai PBS announcers, visit Thai PBS. The source of this information is sci.news, with additional insights provided by Kritsada Ruchiranukul, Astr
