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Friday, April 19, 2013

A new method of analysis will allow a census of quasars


Over the past six decades have passed since the time when the first quasars were discovered that the list of high-galaxies with their fixture - a black hole at the galactic center filled with more than 100,000 objects.

However, attempts to produce a thorough census of powerful radiation sources have so far been restricted to one fundamental problem. The fact that extreme brightness of quasars, allowing them to see from a great distance, at the same time playing on them, 


and a cruel joke: dazzling sparkling quasars located in the foreground, do not allow making out a dull and old quasars located behind them. This means that astrophysicists have to study a population of objects with significant differences between individual members on their distance, age, brightness and type of radiation emitted.

However Astrophysics Institute of Particle Astrophysics and Cosmology Kavli able to get around these limitations and have created a unique algorithm that enables a thorough analysis of large amounts of celestial objects, and as a quasars, as well as populations of other objects located in space with a large spread in the distance. Researchers presented their work in the Journal of The Astrophysical Journal.

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