Astronomy:Blue Nugget
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Short description: Distant galaxy that only existed in the early universe
Blue nugget galaxies are full of O-type stars, young, fast living stars that go supernova in just a few million years.
Blue Nugget (also called BN) galaxies are a type of distant galaxy that only existed in the early universe. Blue nugget galaxies are small but high mass galaxies undergoing mass bursts of star formation, making many large, bright blue stars. As their stellar population evolves and ages, blue nugget galaxies transition into red nugget galaxies.[1]
"Blue" derives from their blue coloration and "Nugget" derives from their small size.[2]
Examples of Blue Nugget galaxies:
- KIDS J232940-340922[3]
- KIDS J122456+005048[3]
References
- ↑ Kohler, Susanna (2020-12-09). "Nugget Galaxies Cross in the Sky" (in en-US). https://aasnova.org/2020/12/09/nugget-galaxies-cross-in-the-sky/.
- ↑ "Astronomers Solve the Mystery of Small Galaxies with Monster Black Holes" (in en). 2019-07-26. https://www.space.com/small-galaxies-monster-black-holes-mystery-solved.html.
- ↑ 3.0 3.1 Napolitano, N. R.; Li, R.; Spiniello, C.; Tortora, C.; Sergeyev, A.; D’Ago, G.; Guo, X.; Xie, L. et al. (December 2020). "Discovery of Two Einstein Crosses from Massive Post-blue Nugget Galaxies at z > 1 in KiDS*" (in en). The Astrophysical Journal Letters 904 (2): L31. doi:10.3847/2041-8213/abc95b. ISSN 2041-8205.
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