In cosmology, galaxy filaments are the largest known structures in the universe, consisting of walls of galactic superclusters. These massive, thread-like formations can commonly reach 50/h to 80/h Megaparsecs (160 to 260 megalight-years)—with the largest found to date being the Hercules-Corona Borealis Great Wall at around 3 gigaparsecs (9.8 Gly) in length—and form the boundaries between voids.[1] Due to the accelerating expansion of the universe, the individual clusters of gravitationally bound galaxies that make up galaxy filaments are moving away from each other at an accelerated rate; in the far future they will dissolve.[2]
Galaxy filaments form the cosmic web and define the overall structure of the observable universe.[3][4][5]
Discovery of structures larger than superclusters began in the late 1980s. In 1987, astronomer R. Brent Tully of the University of Hawaii's Institute of Astronomy identified what he called the Pisces–Cetus Supercluster Complex. The CfA2 Great Wall was discovered in 1989,[6] followed by the Sloan Great Wall in 2003.[7]
In January 2013, researchers led by Roger Clowes of the University of Central Lancashire announced the discovery of a large quasar group, the Huge-LQG, which dwarfs previously discovered galaxy filaments in size.[8] In November 2013, using gamma-ray bursts as reference points, astronomers discovered the Hercules–Corona Borealis Great Wall, an extremely large filament measuring more than 10 billion light-years across.[9][10][11]
The filament subtype of filaments have roughly similar major and minor axes in cross-section, along the lengthwise axis.
The galaxy wall subtype of filaments have a significantly greater major axis than minor axis in cross-section, along the lengthwise axis.
Large quasar groups (LQGs) are some of the largest structures known.[31] They are theorized to be protohyperclusters/proto-supercluster-complexes/galaxy filament precursors.[32]
Pisces–Cetus Supercluster Complex
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هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (أبريل 2018) كيم ميونغ صن معلومات شخصية الميلاد 20 يناير 1896(1896-01-20)بيونغيانغ الوفاة يونيو 22, 1951 (عن عمر ناهز 55 عاماً)طوكيو سبب الوفاة مرض الجنسية كورية الحياة الع
Magadi Soda CompanyTypeWholly owned subsidiaryIndustryMineralsFounded1911; 112 years ago (1911)HeadquartersMagadi, Kajiado County, KenyaProductsSoda ashParentTata Chemicals The Magadi Soda Company manufactures soda ash at the Kenyan town of Magadi, which is in southwestern Kenya. It is the largest manufacturer of soda ash in Africa. The company was founded in 1911 and mines trona from Lake Magadi, in the Rift Valley. Lake Magadi has one of the purest surface deposits of trona. …
Spanish actress This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help to improve this article by introducing more precise citations. (January 2013) (Learn how and when to remove this template message) Fuentes at the 32nd Goya Awards in 2018 Mariola Fuentes (born 1970, Marbella) is a Spanish actress. She usually plays tragicomical characters. She started to be known in 1997, thanks to her role …
Джерело мінеральної води(Розлуч, № 1) 49°14′25″ пн. ш. 22°59′12″ сх. д. / 49.24028000002777361° пн. ш. 22.98694000002777926° сх. д. / 49.24028000002777361; 22.98694000002777926Координати: 49°14′25″ пн. ш. 22°59′12″ сх. д. / 49.24028000002777361° пн. ш. 22.98694000002777926° сх. д. / …
هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (أبريل 2019) بروس ميريت معلومات شخصية الميلاد 1 أبريل 1958 (65 سنة) مواطنة الولايات المتحدة الحياة العملية المهنة متسابق قوارب الكانوي الرياضة كانو-كاياك تعديل م
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університет Поліський державний університет ПДУ Одна із будов Поліського державного університетуОдна із будов Поліського державного університету 52°06′49″ пн. ш. 26°06′46″ сх. д. / 52.11365400002777193° пн. ш. 26.11304800002777782° сх. д. / 52.11365400002777193; 26.11304800002777782…
ريزوتانو الإحداثيات 37°41′00″N 14°02′00″E / 37.683333333333°N 14.033333333333°E / 37.683333333333; 14.033333333333 [1] تقسيم إداري البلد إيطاليا[2][3] التقسيم الأعلى قلعة النساء [لغات أخرى] (4 أغسطس 2015–) خصائص جغرافية المساحة 38.27 كيلومتر مربع (9 أكتوبر 2011)…
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U.S. House Districts in the state of Iowa Iowa's congressional districts since 2023. Iowa is divided into four congressional districts, each represented by a member of the United States House of Representatives. The state's congressional map is roughly divided by quadrants in the northeast, northwest, southeast, and southwest sections of Iowa. The districts were represented by three Republicans and one Democrat from the 2014 elections to the 2020 elections, with a brief period of Democratic cont…
Calendars used in Japan past and present 1729 calendar, which used the Jōkyō calendar procedure, published by Ise Grand Shrine Japanese calendar types have included a range of official and unofficial systems. At present, Japan uses the Gregorian calendar together with year designations stating the year of the reign of the current Emperor.[1] The written form starts with the year, then the month and finally the day, coinciding with the ISO 8601 standard. For example, February 16, 2003, …
Sporting event delegationLiechtenstein at theOlympicsIOC codeLIENOCLiechtenstein Olympic CommitteeWebsitewww.olympic.li (in German and English)Medals Gold 2 Silver 2 Bronze 6 Total 10 Summer appearances193619481952195619601964196819721976198019841988199219962000200420082012201620202024Winter appearances193619481952195619601964196819721976198019841988199219941998200220062010201420182022 This is a list of flag bearers who have represented Liechtenstein at the Olympics.[1] Flag bearers…
Dieser Artikel behandelt den Unfall. Zum Roman siehe Kernschmelze (Roman). Geschmolzener Reaktorkern beim Three-Mile-Island-Unfall. 1. 2B-Anschluss 2. 1A-Anschluss 3. Hohlraum 4. lose Bruchstücke des Kerns 5. Kruste 6. geschmolzenes Material 7. Bruchstücke in unterer Kammer 8. mögliche Uran-abgereicherte Region 9. zerstörte Durchführung 10. durchlöcherter Schild 11. Schicht aus geschmolzenem Material auf Oberflächen der Bypass-Kanäle 12. Beschädigungen am oberen Gitter Als Kernschmelze …
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