News tagged with galaxy formation

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The evolution of massive galaxy clusters

Galaxy clusters have long been recognized as important laboratories for the study of galaxy formation and evolution. The advent of the new generation of millimeter and submillimeter wave survey telescopes, like the South ...

dateJan 20, 2017 in Astronomy
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Neutral hydrogen gas in galaxy clusters

Most galaxies are members of a cluster, a grouping of several to thousands of galaxies. Our Milky Way, for example, is a member of the "Local Group," a set of about fifty galaxies whose other large member is the Andromeda ...

dateSep 09, 2015 in Astronomy
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Astronomers complete cosmic dust census

An international team of astronomers has completed a benchmark study of more than 300 galaxies, producing the largest census of dust in the local Universe, the Herschel Reference Survey. Led by Dr Luca Cortese from Swinburne ...

dateMar 18, 2014 in Astronomy
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Minor mergers are major drivers of star formation

Around half of the star formation in the local Universe arises from minor mergers between galaxies, according to data from the Sloan Digital Sky Survey. The patch of sky called Stripe 82 is observed repeatedly to produce ...

dateJun 28, 2016 in Astronomy
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Hubble spots a very bright contortionist

(Phys.org) —The contorted object captured by Hubble in this picture is IRAS 22491-1808, also known as the South America Galaxy. It is an ultra-luminous infrared galaxy (ULIRG) that emits a huge amount of light at infrared ...

dateJun 17, 2013 in Astronomy
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