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NGC 5068 unveils: Webb’s Captivating Star Formation Image



The James Webb Space Telescope has unveiled a breathtaking image showcasing the delicate interplay between dust, star clusters, and luminous tendrils of gas. This composite image, captured using two of Webb’s instruments, reveals the barred spiral galaxy NGC 5068, with its prominent central bar visible in the upper left corner. NASA Administrator Bill Nelson presented this captivating image during a special event with students at the Copernicus Science Centre in Warsaw, Poland.

NGC 5068: A Galaxy in Focus:

Situated approximately 20 million light-years away in the constellation Virgo, NGC 5068 takes center stage in this image. Its central regions, teeming with vibrant star formation, have been selected as part of an ambitious campaign to amass a wealth of observations on nearby galaxies and their stellar birth processes. Notable examples from this celestial collection include IC 5332 and M74, both of which have provided astronomers with valuable insights into the profound implications of star formation within NGC 5068.

Astronomy’s Crucial Insights:

Observations of star formation are highly significant in numerous branches of astronomy, ranging from understanding the physics of interstellar plasmas to comprehending the evolution of entire galaxies. By closely examining the birth of stars within NGC 5068 and other neighboring galaxies, astronomers hope to catalyze major scientific breakthroughs using the initial data furnished by Webb.

Building on Previous Discoveries:

Webb’s observations complement and enhance previous studies conducted using various telescopes, including the iconic Hubble Space Telescope and ground-based observatories. The telescope has amassed a collection of images featuring 19 nearby star-forming galaxies, with NGC 5068 as a prominent inclusion. These images have been combined with Hubble’s records of 10,000-star clusters, the Very Large Telescope’s spectroscopic mapping of 20,000 star-forming emission nebulae, and the Atacama Large Millimeter/submillimeter Array’s observations of 12,000 dense molecular clouds within NGC 5068. This comprehensive approach, spanning the electromagnetic spectrum, provides astronomers with an unprecedented opportunity to assemble intricate details about the fascinating process of star formation within NGC 5068 and gain deeper insights into its composition.

Webb’s Unique Perspective:

With its exceptional capability to penetrate the obscuring veils of gas and dust enveloping nascent stars within NGC 5068, the James Webb Space Telescope is ideally suited to investigate the intricate mechanisms governing star formation. Unlike visible-light observatories such as Hubble or the VLT, Webb’s infrared vision, facilitated by its MIRI (Mid-Infrared Instrument) and NIRCam (Near-Infrared Camera), enables astronomers to peer through colossal dust clouds within NGC 5068 and capture the unfolding processes of star birth. This captivating image merges the capabilities of these two instruments, providing an unparalleled glimpse into the composition and dynamics of star formation within NGC 5068.

barred spiral galaxy NGC 5068
In this image of the barred spiral galaxy NGC 5068, from the James Webb Space Telescope’s MIRI instrument, the dusty structure of the spiral galaxy and glowing bubbles of gas containing newly-formed star clusters are particularly prominent. Three asteroid trails intrude into this image, represented as tiny blue-green-red dots. Asteroids appear in astronomical images such as these because they are much closer to the telescope than the distant target. As Webb captures several images of the astronomical object, the asteroid moves, so it shows up in a slightly different place in each frame. They are a little more noticeable in images such as this one from MIRI, because many stars are not as bright in mid-infrared wavelengths as they are in near-infrared or visible light, so asteroids are easier to see next to the stars. One trail lies just below the galaxy’s bar, and two more in the bottom-left corner.
Credits: ESA/Webb, NASA & CSA, J. Lee and the PHANGS-JWST Team
NGC 5068, from the James Webb Space Telescope
This view of the barred spiral galaxy NGC 5068, from the James Webb Space Telescope’s NIRCam instrument, is studded by the galaxy’s massive population of stars, most dense along its bright central bar, along with burning red clouds of gas illuminated by young stars within. This near-infrared image of the galaxy is filled by the enormous gathering of older stars which make up the core of NGC 5068. The keen vision of NIRCam allows astronomers to peer through the galaxy’s gas and dust to closely examine its stars. Dense and bright clouds of dust lie along the path of the spiral arms: These are H II regions, collections of hydrogen gas where new stars are forming. The young, energetic stars ionize the hydrogen around them, creating this glow represented in red.
Credits: ESA/Webb, NASA & CSA, J. Lee and the PHANGS-JWST Team

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