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Supernova 1987A is on the news long ago, each new discovery on this rich region of birth stars unveiling of new mysteries about the cosmos around our galaxy
Nestled in the Great Cloud of Magellan, the galactic closest neighbor of the Milky Way, this fascinating supernova is the remnant of an exploded star and appeared on our sky on February 23, 1987 – hence the name
As reported Inquisitr supernova 1987A was the first to be observed with modern telescopes and the brightest since Johannes Kepler spotted the supernova which will be known as the Kepler star – the most recently detected supernova in our galaxy, discovered more than four centuries ago.
bizarre three-ring structure
Located 168,000 light-years from the Earth on the periphery of the Earth. The spectacular Tarentula Nebula, supernova1987A "is the closest supernova explosion observed for hundreds of years and the best opportunity for astronomers to study the phases before, during and after death. A star " NASA Last year, on the occasion of the 30th anniversary of the supernova
One of the most captivating things about supernova 1987A , and there is a lot to do, it's its unusual appearance. This strange supernova remnant does not have one, but three shiny rings of material enveloping the site of the explosion of the star
ESA / Hubble and NASA
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ESA
(CC BY-SA 3.0)
The video below, put online by NASA last February, zooms in on the 1987A supernova, revealing its enigmatic three-ring structure. The inner ring, which is also the brightest, has nearly a year of light and is illuminated by a wave of energy coming from the explosion of the star.
First observation of its magnetic field [19659004] Three decades after its discovery, supernova 1987A has lost none of its extraordinary appeal and continues to fascinate astronomers. In this regard, a recent study of its radiation made the first-ever direct observation of the supernova's magnetic field, Science Daily reports.
By studying the radiation from the 1987A supernova, the researchers were able to study its magnetic field with the Australia Telescope Compact Array (ATCA) at the Paul Wild Observatory in New South Wales and from discover its nascent structure.
Principal author of the study Dr. Giovanna Zanardo, of the International Center for Research in Radio Astronomy at the University of Western Australia commented on this impressive discovery
"It is the earliest possible detection of the magnetic field formed after the explosion of a massive star. "
His team observed the supernova with the ATCA from October 2015 until May 2016, at frequencies ranging from 20 to 50 GHz, and discovered "a magnetic field mainly radial through the inner ring, "reveals the new study, published Friday in The Journal of Astrophysics
#Space : Astronomers Observe the Field #magnetic of #remains from #supernova 1987A
► https://t.co/5xUGXglu3h via @physorg_com pic.twitter.com/twTqt56yfs"The magnetism we detected is about 50,000 times weaker than a refrigerator magnet, and we were able to measure that at a distance of about 1.6 million billion kilometers "
But the immense effort paid off and the new discoveries paved the way for a better understanding of cosmic magnetism in the remnants of supernova
Much less chaotic than expected ]
For example, astronomers discovered that, although very young, the 1987A supernova already has a fairly structured magnetic field, instead of displaying chaotic magnetic lines
. Surprisingly enough, the magnetic field of the supernova has already begun to be aligned in an ordered pattern. Unlike the Earth's magnetic lines, which run north and south, those of the 1987A "supernova are like the spokes of a bicycle wheel lined up from the center," says a press release. Dunlap Institute . for Zanardo, the magnetic field around the 1987A supernova shows clear signs of order
" At such a young age, all that remains stellar moves incredibly fast and changes rapidly, but Magnetic Field Seems "
This discovery suggests that supernova remnants do not need a lot of time to get their magnetic field in order – something happening with age – since may occur in the 30 years of the supernova explosion.
Gaensler notes that the team will continue to closely monitor the 1987A supernova and the shape of its magnetic field, for the see them transform themselves even more and install in new models when the shock wave and the debris cloud pass into a new material. "
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