https://phys.org/news/2023-07-webb-telescope-distant-supermassive-black.html Phys.org Topics * Week's top * Latest news * Unread news * Subscribe [ ] Science X Account [ ] [ ] [*] Remember me Sign In Click here to sign in with or Forget Password? Not a member? Sign up Learn more * Nanotechnology * Physics * Earth * Astronomy & Space * Chemistry * Biology * Other Sciences * Medical Xpress Medicine * Tech Xplore Technology [INS::INS] * * share this! * 133 * 15 * Share * Email 1. Home 2. Astronomy & Space 3. Astronomy * * * --------------------------------------------------------------------- July 6, 2023 Editors' notes This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: fact-checked peer-reviewed publication trusted source proofread Webb Telescope detects most distant active supermassive black hole by University of Texas at Austin Webb Telescope detects most distant active supermassive black hole A zoomed-in view of images captured by the James Webb Space Telescope in near-infrared light for the Cosmic Evolution Early Release Science (CEERS) Survey. Credit: NASA, ESA, CSA, Steve Finkelstein (UT Austin), Micaela Bagley (UT Austin), Rebecca Larson (UT Austin). Researchers have discovered the most distant active supermassive black hole to date with the James Webb Space Telescope (JWST). The galaxy, CEERS 1019, existed about 570 million years after the big bang, and its black hole is less massive than any other yet identified in the early universe. In addition to the black hole in CEERS 1019, the researchers identified two more black holes that are on the smaller side and existed 1 billion and 1.1 billion years after the big bang. JWST also identified eleven galaxies that existed when the universe was 470 million to 675 million years old. The evidence was provided by JWST's Cosmic Evolution Early Release Science (CEERS) Survey, led by Steven Finkelstein, a professor of astronomy at The University of Texas at Austin. The program combines JWST's highly detailed near- and mid-infrared images and data known as spectra, all of which were used to make these discoveries. "Looking at this distant object with this telescope is a lot like looking at data from black holes that exist in galaxies near our own," said Rebecca Larson, a recent Ph.D. graduate at UT Austin, who led the study. "There are so many spectral lines to analyze." The team has published these results in several initial papers in a special edition of The Astrophysical Journal Letters. CEERS 1019 is notable not only for how long ago it existed, but also how relatively little its black hole weighs. It clocks in around 9 million solar masses, far less than other black holes that also existed in the early universe and were detected by other telescopes. Those behemoths typically contain more than 1 billion times the mass of the sun--and they are easier to detect because they are much brighter. The black hole within CEERS 1019 is more like the black hole at the center of our Milky Way galaxy, which is 4.6 million times the mass of the sun. Though smaller, this black hole existed so much earlier that it is still difficult to explain how it formed so soon after the universe began. Researchers have long known that smaller black holes must have existed earlier in the universe, but it wasn't until JWST began observing that they were able to make definitive detections. Not only could the team untangle which emissions in the spectrum are from the black hole and which are from its host galaxy, they could also pinpoint how much gas the black hole is ingesting and determine its galaxy's star-formation rate. The team found this galaxy is ingesting as much gas as it can while also churning out new stars. They turned to the images to explore why that might be. Visually, CEERS 1019 appears as three bright clumps, not a single circular disk. Webb Telescope detects most distant active supermassive black hole A team of researchers led by Steven Finkelstein and Rebecca Larson from The University of Texas at Austin have identified the most distant active supermassive black hole to date in the James Webb Space Telescope's Cosmic Evolution Early Release Science (CEERS) Survey. The black hole, within galaxy CEERS 1019, existed just over 570 million years after the big bang and is far less massive than other black holes previously found in the early universe. Credit: NASA, ESA, CSA, Leah Hustak (STScI) "We're not used to seeing so much structure in images at these distances," said CEERS team member Jeyhan Kartaltepe, an associate professor of astronomy at the Rochester Institute of Technology in New York. "A galaxy merger could be partly responsible for fueling the activity in this galaxy's black hole, and that could also lead to increased star formation." These are only the first groundbreaking findings from the CEERS Survey. "Until now, research about objects in the early universe was largely theoretical," Finkelstein said. "With Webb, not only can we see black holes and galaxies at extreme distances, we can now start to accurately measure them. That's the tremendous power of this telescope." In the future, it's possible JWST's data may also be used to explain how early black holes formed, revising researchers' models of how black holes grew and evolved in the first several hundred million years of the universe's history. The James Webb Space Telescope is an international program led by NASA with its partners, the European Space Agency and the Canadian Space Agency. [INS::INS] More extremely distant black holes and galaxies The CEERS Survey is expansive, and there is much more to explore. Team member Dale Kocevski of Colby College in Waterville, Maine, and the team quickly spotted another pair of small black holes in the data. The first, within galaxy CEERS 2782, was easiest to pick out. There isn't any dust obscuring JWST's view of it, so researchers could immediately determine when its black hole existed in the history of the universe--only 1.1 billion years after the big bang. The second black hole, in galaxy CEERS 746, existed slightly earlier, 1 billion years after the big bang. Its bright accretion disk, a ring made up of gas and dust that encircles its supermassive black hole, is still partially clouded by dust. "The central black hole is visible, but the presence of dust suggests it might lie within a galaxy that is also furiously pumping out stars," Kocevski explained. Webb Telescope detects most distant active supermassive black hole This graphic shows detections of the most distant active supermassive black holes currently known in the universe. Three, including the most distant (within the galaxy CEERS 1019), were recently identified by the James Webb Space Telescope's Cosmic Evolution Early Release Science (CEERS) Survey. The new CEERS black holes are much smaller than any others detected before in the early universe. Credit: NASA, ESA, CSA, Leah Hustak (STScI). Like the one in CEERS 1019, the two other newly described black holes (in galaxies CEERS 2782 and CEERS 746) are also "light weights"--at least when compared with previously known supermassive black holes at these distances. They are only about 10 million times the mass of the sun. "Researchers have long known that there must be lower mass black holes in the early universe. Webb is the first observatory that can capture them so clearly," Kocevski said. "Now we think that lower mass black holes might be all over the place, waiting to be discovered." Before JWST, all three black holes were too faint to be detected. "With other telescopes, these targets look like ordinary star-forming galaxies, not active supermassive black holes," Finkelstein added. JWST's sensitive spectra also allowed these researchers to measure precise distances to, and therefore the ages of, galaxies in the early universe. Team members Pablo Arrabal Haro of the National Science Foundation's NOIRLab and Seiji Fujimoto, a postdoctoral researcher and Hubble fellow at UT Austin, identified 11 galaxies that existed 470 million to 675 million years after the big bang. Not only are they extremely distant, the fact that so many bright galaxies were detected is notable. Researchers theorized that JWST would detect fewer galaxies than are being found at these distances. "I am overwhelmed by the amount of highly detailed spectra of remote galaxies Webb returned," Arrabal Haro said. "These data are absolutely incredible." These galaxies are rapidly forming stars but are not yet as chemically enriched as galaxies that are much closer to home. "Webb was the first to detect some of these galaxies," explained Fujimoto. "This set, along with other distant galaxies we may identify in the future, might change our understanding of star formation and galaxy evolution throughout cosmic history," he added. The team published several initial papers about CEERS Survey data in a special edition of The Astrophysical Journal Letters on July 6: "A CEERS Discovery of an Accreting Supermassive Black Hole 570 Myr after the Big Bang: Identifying a Progenitor of Massive z > 6 Quasars," led by Larson, "Hidden Little Monsters: Spectroscopic Identification of Low-Mass, Broad-Line AGN at z > 5 with CEERS," led by Kocevski, "Spectroscopic confirmation of CEERS NIRCam-selected galaxies at z[?]8-10," led by Arrabal Haro, and "CEERS Spectroscopic Confirmation of NIRCam-Selected z [?] 8 Galaxy Candidates with JWST/NIRSpec: Initial Characterization of their Properties," led by Fujimoto. More information: Seiji Fujimoto et al, CEERS Spectroscopic Confirmation of NIRCam-selected z [?] 8 Galaxy Candidates with JWST/ NIRSpec: Initial Characterization of Their Properties, The Astrophysical Journal Letters (2023). DOI: 10.3847/2041-8213/acd2d9 G. Yang et al, CEERS Key Paper. VI. JWST/MIRI Uncovers a Large Population of Obscured AGN at High Redshifts, The Astrophysical Journal Letters (2023). DOI: 10.3847/2041-8213/acd639 Casey Papovich et al, CEERS Key Paper. V. Galaxies at 4 < z < 9 Are Bluer than They Appear-Characterizing Galaxy Stellar Populations from Rest-frame ~1 mm Imaging, The Astrophysical Journal Letters (2023). DOI: 10.3847/2041-8213/acc948 Pablo G. Perez-Gonzalez et al, CEERS Key Paper. IV. A Triality in the Nature of HST-dark Galaxies, The Astrophysical Journal Letters (2023). DOI: 10.3847/2041-8213/acb3a5 Jeyhan S. Kartaltepe et al, CEERS Key Paper. III. The Diversity of Galaxy Structure and Morphology at z = 3-9 with JWST, The Astrophysical Journal Letters (2023). DOI: 10.3847/2041-8213/acad01 Dale D. Kocevski et al, CEERS Key Paper. II. A First Look at the Resolved Host Properties of AGN at 3 < z < 5 with JWST, The Astrophysical Journal Letters (2023). DOI: 10.3847/2041-8213/acad00 Steven L. Finkelstein et al, CEERS Key Paper. I. An Early Look into the First 500 Myr of Galaxy Formation with JWST, The Astrophysical Journal Letters (2023). DOI: 10.3847/2041-8213/acade4 Micaela B. Bagley et al, CEERS Epoch 1 NIRCam Imaging: Reduction Methods and Simulations Enabling Early JWST Science Results, The Astrophysical Journal Letters (2023). DOI: 10.3847/2041-8213/acbb08 Steven L. Finkelstein et al, A Long Time Ago in a Galaxy Far, Far Away: A Candidate z ~ 12 Galaxy in Early JWST CEERS Imaging, The Astrophysical Journal Letters (2022). DOI: 10.3847/2041-8213/ac966e Journal information: Astrophysical Journal Letters Provided by University of Texas at Austin Citation: Webb Telescope detects most distant active supermassive black hole (2023, July 6) retrieved 7 July 2023 from https://phys.org /news/2023-07-webb-telescope-distant-supermassive-black.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. 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