Datei:Hubble Resolves Two Pairs of Quasars.jpg
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Beschreibung
BeschreibungHubble Resolves Two Pairs of Quasars.jpg |
English: These two NASA/ESA Hubble Space Telescope images reveal two pairs of quasars that existed 10 billion years ago and reside at the hearts of merging galaxies. Each of the four quasars resides in a host galaxy. These galaxies, however, cannot be seen because they are too faint, even for Hubble. The quasars within each pair are only about 10,000 light-years apart—the closest ever seen at this cosmic epoch. Quasars are brilliant beacons of intense light from the centers of distant galaxies that can outshine their entire galaxies. They are powered by supermassive black holes voraciously feeding on infalling matter, unleashing a torrent of radiation. The quasar pair in the left-hand image is catalogued as J0749+2255; the pair on the right, as J0841+4825. The two pairs of host galaxies inhabited by each double quasar will eventually merge. The quasars will then tightly orbit each other until they eventually spiral together and coalesce, resulting in aneven more massive, but solitary black hole. The image for J0749+2255 was taken 5 January 2020. The J0841+4825 snapshot was taken 30 November 2019. Both images were taken in visible light with Wide Field Camera 3. |
Datum | Aufgenommen am 6. April 2021 18:09:02 |
Quelle | https://esahubble.org/images/opo2114a/ |
Urheber | NASA, ESA, H. Hwang and N. Zakamska (Johns Hopkins University), and Y. Shen (University of Illinois, Urbana-Champaign) |
Lizenz
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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Namensnennung: ESA/Hubble
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6. April 2021
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aktuell | 15:28, 13. Apr. 2021 | 1.860 × 920 (274 KB) | wikimediacommons>Pandreve | Uploaded a work by NASA, ESA, H. Hwang and N. Zakamska (Johns Hopkins University), and Y. Shen (University of Illinois, Urbana-Champaign) from https://esahubble.org/images/opo2114a/ with UploadWizard |
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Fotograf | Space Telescope Science Institute Office of Public Outreach |
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Erfassungszeitpunkt | 18:09, 6. Apr. 2021 |
Software | Adobe Photoshop 22.2 (Macintosh) |
Speicherzeitpunkt | 15:58, 16. Mär. 2021 |
Digitalisierungszeitpunkt | 13:49, 2. Mär. 2021 |
Datum zu dem die Metadaten letztmalig geändert wurden | 13:05, 16. Mär. 2021 |
Eindeutige Kennung des ursprünglichen Dokuments | xmp.did:03f2fec8-b661-45d7-8d2a-ba9e3ea6e5cc |
Quelle | ESA/Hubble |
Namensnennung/Veröffentlicher | NASA, ESA, H. Hwang and N. Zakamska (Johns Hopkins University), and Y. Shen (University of Illinois, Urbana-Champaign) |
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Kontaktinformationen | outreach@stsci.edu
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
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IIM-Version | 4 |
JPEG-Dateikommentar | Inhabitants of our Milky Way galaxy living several billion years from now will have a markedly different-looking sky overhead. Two brilliant objects, each as bright as the full Moon or brighter, will drown out the stars with their radiance. These giant blazing light bulbs are a pair of quasars, brought to life by the collision of our Milky Way with the neighboring Andromeda galaxy. Quasars are ignited by monster black holes voraciously feeding on infalling matter, which unleashes a torrent of radiation. The Milky Way and Andromeda have such black holes at their hearts, which are now sleeping giants. That is, until the big bang-up. The duo will be as deadly then as it is dazzling. Blistering radiation from the quasar pair might sterilize the surfaces of planets, wiping out innumerable extraterrestrial civilizations. This tale of "death star" dueling quasars looming in the sky might seem like a scene out of a science fiction movie. But the real universe is stranger than fiction. This is actually a story that played out between pairs of galaxies that existed long ago and far away. Two quasar pairs photographed by Hubble existed 10 billion years ago, during the peak epoch of galaxy close encounters. The discovery offers a unique way to probe collisions among galaxies in the early universe that might otherwise have gone undetected. Ancient quasars are scattered all across the heavens, so finding these dynamic duos is fortuitous. Astronomers estimate only one in a thousand quasars are really double quasars. |