File:Simulations Show Webb Telescope Can Reveal Distant Galaxies Hidden in Quasars’ Glare (51145941089).png
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| Description |
Quasars are the brightest objects in the universe and among the most energetic. They outshine entire galaxies of billions of stars. A supermassive black hole lies at the heart of every quasar, but not every black hole is a quasar. Only the black holes that are feeding most voraciously can power a quasar. Material falling into the supermassive black hole heats up and causes a quasar to shine across the universe like a lighthouse beacon. Although quasars are known to reside at the centers of galaxies, it’s been difficult to tell what those galaxies are like and how they compare to galaxies without quasars. The challenge is that the quasar’s glare makes it difficult or impossible to tease out the light of the surrounding host galaxy. It’s like looking directly into a car headlight and trying to figure out what kind of automobile it is attached to. A new study suggests that NASA’s James Webb Space Telescope, set to launch in 2021, will be able to reveal the host galaxies of some distant quasars despite their small sizes and obscuring dust. Read more: <a href="https://www.nasa.gov/feature/goddard/2020/simulations-show-webb-telescope-can-reveal-distant-galaxies-hidden-in-quasars-glare" rel="noreferrer nofollow">www.nasa.gov/feature/goddard/2020/simulations-show-webb-t...</a> Image: This artist’s illustration portrays two galaxies that existed in the first billion years of the universe. The larger galaxy at left hosts a brilliant quasar at its center, whose glow is powered by hot matter surrounding a supermassive black hole. Scientists calculate that the resolution and infrared sensitivity of NASA’s upcoming James Webb Space Telescope will allow it to detect a dusty host galaxy like this despite the quasar’s searchlight beam. Credit: J. Olmsted (STScI) <a href="https://www.nasa.gov/multimedia/guidelines/index.html" rel="noreferrer nofollow">NASA Media Use Policy</a> <a href="https://twitter.com/#!/NASAWebb" rel="noreferrer nofollow">Follow us on Twitter</a> <a href="http://www.facebook.com/nasawebb%e2%80%9d rel=" rel="noreferrer nofollow">Like us on Facebook</a> <a href="https://www.youtube.com/nasawebbtelescope" rel="noreferrer nofollow">Subscribe to our YouTube channel</a> <a href="http://instagram.com/NASAWebb" rel="noreferrer nofollow">Follow us on Instagram</a> |
| Date | |
| Source | Simulations Show Webb Telescope Can Reveal Distant Galaxies Hidden in Quasars’ Glare |
| Author | NASA's James Webb Space Telescope from Greenbelt, MD, USA |
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This image was originally posted to Flickr by James Webb Space Telescope at https://flickr.com/photos/50785054@N03/51145941089. It was reviewed on 17 June 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 17:22, 17 June 2023 | | 1,280 × 720 (1.76 MB) | Astromessier (talk | contribs) | Transferred from Flickr via #flickr2commons |
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