ⓘ NASA
A conceptual image of the James Webb Space Telescope
Webb utilized powerful instruments to create a detailed image of galaxy NGC 5134. From this observation, astronomers can understand the life cycle of stars and apply that knowledge to galaxies that appear as small as a dot in images.
NGC 5134 is a spiral galaxy located 65 million light-years away in the constellation Virgo. At 65 million light-years away, the galaxy is quite close enough for Webb to observe in detail. For this observation, Webb joined the forces of its Near-InfraRed Camera (NIRCam) and Mid-Infrared Instrument (MIRI).
NIRCam captures light from the stars and star clusters that dot the galaxy’s spiral arms. The stars appear blue-white. MIRI, on the other hand, captures light emitted by the warm dust present around the stars in the galaxy. The dust appears bright red and orange in this image. The glowing dust reveals complex organic molecules like polycyclic aromatic hydrocarbons. This provides an opportunity for astronomers to study the chemistry happening in interstellar clouds
The image reveals the galaxy’s glowing blue-white core. Clumps of dust and gas are scattered around the galaxy’s spiral arms. The dust and gas together form interstellar clouds. These clouds are the site of star formation. In some areas of the image, the interstellar cloud is dense, while in other areas, they appear patchy. This could be due to the clearing action of the powerful radiation from young stars. Stars use up gas from the clouds when forming. When the stars die, they release some of the gas back into the surrounding area. For massive stars about eight times the mass of our Sun, this release is through cataclysmic supernova explosions that spread across hundreds of light-years. For stars like our Sun, the explosions are more gentle.
In the background of this image, there are more distant galaxies. But the understanding of the stellar lifecycle obtained from galaxies like NGC 5134 can be applied to studying those distant galaxies.
Chibuike Okpara – Tech Writer – 418 articles published on Notebookcheck since 2024
I have always been fascinated by technology and digital devices my entire life and even got addicted to it. I have always marveled at the intricacy of even the simplest digital devices and systems around us. I have been writing and publishing articles online for about 6 years now, just about a year ago, I found myself lost in the marvel of smartphones and laptops we have in our hands every day. I developed a passion for learning about new devices and technologies that come with them and at some point, I asked myself, “Why not get into writing tech articles?” It is useless to say I followed up the idea — it is evident. I am an open-minded individual who derives an infinite amount of joy from researching and discovering new information, I believe there is so much to learn and such a short life to live, so I put my time to good use — learning new things. I am a ‘bookworm’ of the internet and digital devices. When I am not writing, you will find me on my devices still, I do explore and admire the beauty of nature and creatures. I am a fast learner and quickly adapt to changes, always looking forward to new adventures.