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主題: ADFS-27 高亮度 星爆星系離 128億光年外 作者: peter 於 2017-11-14 07:42:42 http://www.sci-news.com/astronomy/alma-pair-hyper-luminous-starburst-galaxies-05425.html
ALMA Spots Pair of Extremely Rare Hyper-Luminous Starburst Galaxies https://www.youtube.com/watch?v=JqXMxCyWdgo (http://cdn.sci-news.com/images/2017/11/image_5425_2-ADFS-27.jpg) This composite image shows the ADFS-27 galaxy pair, which is located approximately 12.7 billion light-years from Earth in the direction of the Dorado constellation: the background image is from ESA’s Herschel Space Observatory; the object was then detected by ESO’s Atacama Pathfinder EXperiment telescope (middle image); ALMA (right) was able to identify two galaxies: ADFS-27N (for North) and ADFS-27S (for South). These so-called hyper-luminous starburst galaxies are exceedingly rare at this epoch of cosmic history — near the time when galaxies first formed — and may represent one of the most-extreme examples of violent star formation ever observed. Image credit: NRAO / AUI / NSF / B. Saxton / ESA Herschel / ESO APEX / ALMA / ESO / NAOJ / D. Riechers. |