The European Space Agency, ESA, launched the Herschel Space Observatory in 2009. It was the first observatory able to take far infrared spectra over the full range. Using it the team of researchers focused on what seemed to be a single cosmic object which is very red in the far infrared, and decided to study it with APEX and ALMA.
APEX is a 12m diametger radiotelescope in the Atacama desert in Chile, which was set up as a first step in the project ALMA, a group of 66 radiotelescopes of 7m and 22m in the same area. The result was the discovery of a concentration of dusty galaxies in the early univers. They are on the point of merging to form the centre of a future massive galaxy cluster.
Ivan - Oteo - Principal - Investigator - Study
Ivan Oteo, the Principal Investigator on the study, who currently works in the Institute of Astronomy at the University of Edinburgh and the European Southern Observatory, points out how rare it is to observe this type of phenomena. "We think that the duration of dusty bursts of star formation lasts a relatively short time " he explains, and adds " these galaxies are usually in the minority at any epoch and at any place in the Universe. That is why finding a large number of bursts of dusty star formation emitting at the same time like this is very puzzling, somethiong we need...
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