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Blobrana


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A Dust-Obscured Massive Maximum-Starburst Galaxy in the Early Universe

Astronomers of the Herschel Multi-tiered Extragalactic Survey (HerMES) project announce in the journal Nature the discovery of an unusually massive, maximum-starburst galaxy at a redshift of 6.34, or when the Universe was only 880 million years old. Because current theories of galaxy formation and evolution predict smaller galaxies with slower rates of star production in the early Universe, the detection of such a galaxy is challenging.
HerMES is the largest project that has being carried out using ESA's Herschel Space Observatory, and other telescopes around the world have made an important contribution, including the William Herschel Telescope (WHT). The extreme galaxy reported here was first detected in the early images obtained using Herschel's SPIRE instrument, the so-called HerMES First Look Survey field (HFLS), showing very unsual red colours in the three bands observed at 250, 350 and 500 microns. 
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Blobrana


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Star factory in the early Universe challenges galaxy evolution theory

ESA's Herschel space observatory has discovered an extremely distant galaxy making stars more than 2000 times faster than our own Milky Way. Seen at a time when the Universe was less than a billion years old, its mere existence challenges our theories of galaxy evolution.
The galaxy, known as HFLS3, appears as little more than a faint, red smudge in images from the Herschel Multi-tiered Extragalactic Survey (HerMES). Yet appearances can be deceiving: this small smudge is actually a star-building factory, furiously transforming gas and dust into new stars.
Our own Milky Way makes stars at a rate equivalent to one solar mass per year, but HFLS3 is seen to be churning out new stars at more than two thousand times more rapidly. This is one of the highest star formation rates ever seen in any galaxy. 
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