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File:EGSY8p7 In The CEERS Survey Field (NIRCam Image).jpg

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current	12:54, 18 January 2024		9,200 × 7,944 (8.87 MB)	Artem.G	Uploaded a work by ESA/Webb, NASA & CSA, S. Finkelstein (UT Austin), M. Bagley (UT Austin), R. Larson (UT Austin), A. Pagan (STScI), C. Witten, M. Zamani (ESA/Webb) from https://esawebb.org/images/weic2402a/ with UploadWizard

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EGSY8p7

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Author	Space Telescope Science Institute Office of Public Outreach
Copyright holder	Public
Credit/Provider	ESA/Webb, NASA & CSA, S. Finkelstein (UT Austin), M. Bagley (UT Austin), R. Larson (UT Austin), A. Pagan (STScI), C. Witten, M. Zamani (ESA/Webb)
Source	ESA/Webb
Short title	Lyman-α emitting galaxy EGSY8p7 in the CEERS survey field (NIRCam image)
Image title	This image shows the galaxy EGSY8p7, a bright galaxy in the early Universe where light emission is seen from, among other things, excited hydrogen atoms— Lyman-α emission. The galaxy was identified in a field of young galaxies studied by Webb in the CEERS survey. In the bottom two panels, Webb’s high sensitivity picks out this distant galaxy along with its two companion galaxies, where previous observations saw only one larger galaxy in its place. This discovery of a cluster of interacting galaxies sheds light on the mystery of why the hydrogen emission from EGSY8p7, shrouded in neutral gas formed after the Big Bang, should be visible at all. Astronomers have concluded that the intense star-forming activity within these interacting galaxies energised hydrogen emission and cleared swathes of gas from their surroundings, allowing the unexpected hydrogen emission to escape. This graphic is assembled from multiple images captured by Webb’s NIRCam instrument as part of the CEERS survey. The close-up view of EGSY8p7 was newly processedfor this image, making use of NIRCam data captured with seven different near-infrared filters. [Image Description: A graphic with three images. The top image, labelled “CEERS survey”, shows many square images of stars and galaxies, stitched together according to their locations in the sky. Onesquare is highlighted, and a cutout on the bottom left shows it enlarged, labelled “Webb/ NIRCam”. A tiny spot is shown zoomed-in to the right, labelled “EGSY8p7” with a scale marker of “0.5 arcsec”. Here it can be seen that the spot is three neighbouring galaxies, appearing as colouredblobs with bright, distinct cores.]
Usage terms	Creative Commons Attribution 4.0 International License
Date and time of data generation	11:00, 18 January 2024
JPEG file comment	This image was stitched together from multiple images captured by the NASA/ESA/CSA James Webb Space Telescope in near-infrared light. To the right of centre is a clump of bright white spiral galaxies that seem to be twisting into one another. Threaded throughout the scene are light pink spirals that look like pinwheels twirling in the wind. The bright foreground stars, set off in blue, announce themselves with Webb’s prominent eight-pointed diffraction spikes. In the bottom row, find the square second from far right. At its right edge, a misshapen blue galaxy is outfitted in blue-and-pink sparkling star clusters. There is so much detail to explore in this panoramic vista, known as the Cosmic Evolution Early Release Science (CEERS) Survey. The galaxies that first caught the eyes of the researchers are those that haven’t appeared in any other images – Webb was the first to reveal their presence. To find them, seek the tiniest, reddest dots speckled throughout this survey. The light from some of them has travelled for over 13 billion years to reach the telescope. The team followed up to obtain spectra with Webb, which led to the discovery of the most distant active supermassive black hole currently known, along with two more extremely distant active supermassive black holes that existed when the Universe was only 1 billion years old. The additional studies also confirmed that eleven galaxies existed when the universe was only 470 to 675 million years old. Webb spent under an hour capturing each image in this field. Combined, they show off about 100,000 galaxies. The CEERS Survey has already proven to researchers that Webb will help us learn an incredible amount about the early Universe. [Image description: Thousands of galaxies appear in this view, which is set against the black background of space. There are many overlapping objects at various distances. They include large, blue foreground stars, some with eight diffraction spikes, and white and pink spiral and elliptical galaxies. Numerous tiny red dots appear throughout the scene.]
Software used	Adobe Photoshop 25.2 (Windows)
File change date and time	20:23, 4 December 2023
Date and time of digitizing	06:46, 12 January 2023
Date metadata was last modified	21:23, 4 December 2023
Unique ID of original document	xmp.did:42227ad8-c4af-4955-abfe-370241a5a94f
Copyright status	Copyright status not set
Keywords	CEERS EGS Field
Contact information	outreach@stsci.edu https://esawebb.org ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States 410-338-4444
IIM version	4

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