Size of the Universe 250 times Wider Fold
Is the universe had a definite size or infinite? Due to the size of the universe that can be seen increasingly widespread, is the farthest object that can be seen to be much older than that estimated that about 14 billion years old.
Known, the photons in the cosmic microwave background has traveled 45 billion years to arrive at Earth. That means, the universe is invisible to the eye at least has the size area of 90 billion light years.
However, it is much broader universe again. It can be known thanks to the statistical analysis made by Mihran Vardanyan and colleagues, researchers from the University of Oxford.
According to Vardanyan, as quoted by the Daily Galaxy, Wednesday, May 4, 2011, the key to knowing the actual size of the universe is to measure the curve.
Previously, astronomers have several methods to measure the arch. One of them, according to Technology Review from the Massachusetts Institute of Technology, is to use the object in the distance is already known size and comparing with how much he looks.
If the object appears larger than it should, a closed universe. If the size looked the same as it should, the universe is flat. However, if smaller, meaning the universe is open (infinity).
The problem is, when scientists studied a variety of data from various models, they get different answers to know the definitive answer about the curvature and size of the universe. Then, where the most accurate of them?
Breakthrough taken Vardanyan and his team is called by the name of Bayesian model averaging. This technique is more intelligent than using the commonly used curvature measurement scientists to explain the data they have.
According to the model created Vardanyan, curvature of the universe is very close to 0. In other words, most likely, the universe-sized flat.
A flat universe can also be infinite. And calculations made by Vardanyan also consistent with this. From the calculations, the universe has a size of at least 250 times greater than the size of the volume Hubber 13.8 billion light years.
Source vivanews.com
Known, the photons in the cosmic microwave background has traveled 45 billion years to arrive at Earth. That means, the universe is invisible to the eye at least has the size area of 90 billion light years.
However, it is much broader universe again. It can be known thanks to the statistical analysis made by Mihran Vardanyan and colleagues, researchers from the University of Oxford.
According to Vardanyan, as quoted by the Daily Galaxy, Wednesday, May 4, 2011, the key to knowing the actual size of the universe is to measure the curve.
Previously, astronomers have several methods to measure the arch. One of them, according to Technology Review from the Massachusetts Institute of Technology, is to use the object in the distance is already known size and comparing with how much he looks.
If the object appears larger than it should, a closed universe. If the size looked the same as it should, the universe is flat. However, if smaller, meaning the universe is open (infinity).
The problem is, when scientists studied a variety of data from various models, they get different answers to know the definitive answer about the curvature and size of the universe. Then, where the most accurate of them?
Breakthrough taken Vardanyan and his team is called by the name of Bayesian model averaging. This technique is more intelligent than using the commonly used curvature measurement scientists to explain the data they have.
According to the model created Vardanyan, curvature of the universe is very close to 0. In other words, most likely, the universe-sized flat.
A flat universe can also be infinite. And calculations made by Vardanyan also consistent with this. From the calculations, the universe has a size of at least 250 times greater than the size of the volume Hubber 13.8 billion light years.
Source vivanews.com
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