A group of astronomers in California has find out the magnetic field of a galaxy in far universe. These astronomers are researching on the early universe through powerful radio telescope. This measurement of magnetic field is as it was about 6.5 billion years ago. Astronomers trust that magnetic fields within our own Milky Way as well as other galaxies near Milky Way direct the rate of start formation and the vibrant of interstellar gas. This magnetic field arose from a sluggish dynamo effect. This magnetic field in these galaxies grow very rapidly as they developed over five billion to ten billion years to their present levels.
However at present astronomers have determined and indicated that the magnetic field which they have calculated in a distant protogalaxy is at least 10 times larger than the normal value of the Milky Way. This study has been published in October issue of nature. According to the Arthur wolfe who is the professor of physics at UC San Diego’s Center for space sciences and astrophysics and head of the group, this research work seems to be completely surprising one. The magnetic field calculated is at least an array to magnitude bigger compared to the normal value of the magnetic field identified in our own galaxy.
Astronomers make use of globe’s biggest fully steerable radio telescope for their research work known as Robert C. It is one of the astonishing telescope located in green bank of West Virginia is Byrd Green Bank Telescope. This grand telescope is functioned through national radio astronomy observatory of national science foundation. They learnt DLA-3C286 protogalaxy situated in the region of northern sky. Magnetic field present outside our galaxy is very less and it is known already. Before these study astronomers have calculated magnetic field of only one that is nearby to the galaxy but that field was very weak.
A group of American and Swiss astronomers in July 17 issue of Nature magazine indicated that they have come across that magazine field of about distant galaxies whereas while the universe was only a third of its present age since they are in the list of mature galaxies these days. This study was completed by making use of bright light from quasars. Wolfe inform those indirect measurements and his group’s latest direct measurements of a distant galaxy’s magnetic field does not necessarily create doubt on the leading theory of magnetic field generation, the mean-field-dynamo model that guess that the magnetic field potency should be much weaker in galaxies at the astrophysical past.
These outcomes have put a challenge in front of dynamo model. Depending upon Arthur wolfe, rather the powerful field which we detect is in gas with little if not star creation, and a fascinating implication is that the presence of the magnetic fields is a significant fact why start formation is very weak in these kinds of protogalaxies. Other two plausible explanations for their observations stated by their teams are also very sensible one. Firstly, it might be possible that they are viewing the fields towards the central regions of the big galaxy, yet magnetic fields are called to be the larger one towards the center of the nearby galaxies. Secondly, it is also probable that the field they have identified has been amplified through a shock wave created by the collision taking place between two galaxies.
However in either situation is has been verified that magnetic fields might be the essential factors in the evolution of the galaxies or we can also declare that it is highly responsible for the low star creation rates detected all over the gaseous progenitors of little galaxies in the early universe. Another challenge is that J. Xavier Prochaska who is a team member and professor of astronomy at US santa crux is going to observe galaxies present throughout the universe.
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