Observations Completed with the Hubble Space Telescope suggest that the universe is expanding very faster than-predictable - Physics-Astronomy.org

Observations Completed with the Hubble Space Telescope suggest that the universe is expanding very faster than-predictable

An article usual for publication in “The Astrophysical Journal” describes a investigate based on observations complete with the Hubble Space Telescope that suggests that the space is expanding at a faster rate than probable. A team of astronomers led by Nobel laureate Adam Riess deliberate the reserve of stars in nineteen galaxies with the top accuracy ever achieved to get this surprising effect.
The measurement of the growth rate of the universe has been advanced over the decades since it was established by astronomer Edwin Hubble’s observations. That detection, based on a work by Georges Lemaître, made a rebellion in astronomy similar only with the Copernican one. For this motive, Hubble earned a huge standing and, in addition to the space telescope, the estimated speed of growth of the cosmos was called Hubble steady after him.
One more surprise came in 1998, when it was proving that not only the growth of the space is not slowing down but is even accelerate. Research in this field earn a number of scientists the Nobel Prize including Adam Riess. To make clear this phenomenon scientists proposed the hypothesis of the survival of dark energy but we know only this result and little else about it.
This latest calibration of the Hubble constant quantity was carried out with huge precision by measuring the distance of stars in several galaxies both close to and far away. For these comments, they used the Hubble Space Telescope’s Wide Field Camera 3 (WFC3) device.
In exacting, the researchers used what are called typical candles, variable stars called Cepheid variables that have a very tough correlation between their period of unpredictability and their absolute brightness. Some type I  supernovae were as well used for this purpose.
The possibility that the space is expanding at a rate still higher than expected make the problem even more complex. One likely explanation is based on a more hypothesis, that of dark radiation. It’s a hypothetical subatomic particle that acts as a mediator in the communication between dark matter particles in a manner similar to the arbitration of the photons between normal matter particles.
The interactions mediated by dark energy could have changed the balance of energy in the early on universe. The result would be in the expansion of the space, which according to this hypothesis has become even faster. Now we can only see this result but according to Adam Riess this could give important clues for the sympathetic of dark matter, dark energy and dark rays. They could form 95% of the universe but we can’t detect them directly.

There are a variety of hypotheses related to the growth of the space and a lot of discussions about their validity and the difficulty of their verification. In these types of study the studies of the space cross path with those of subatomic particles but they may get years. Those are studies that are increasing the frontiers of our knowledge and will carry on with the next-generation instrument.

No comments

Powered by Blogger.