Photos, videos and three-dimensional models of giant supernova
Stunning images for NASA marked the 30th anniversary of the discovery of the brightest supernova in the past 400 years.
In 1987 astronomers discovered a giant supernova located in a galaxy near us, emitting a power equal to 100 million Sun.
In 2017, to commemorate the 30-year mark of the discovery of the giant supernova, NASA announced the valuable data they had collected about it. This cosmic phenomenon is believed to be the brightest star in the universe in the last 400 years.
Here supernova 1987A with images, a short film and a 3-dimensional model help you imagine how amazing this cosmic phenomenon . is.
Giant supernova SN 1987A.
Since the first humanity known it 30 years ago, this supernova has always been monitored by various measures, including the Hubble Telescope, Chandra X-ray Observatory and the Angler System. -ten large Atacama ALMA located in Chile.
SN 1987A is part of the Magellanic Big Cloud and it is also the most recent supernova observed for hundreds of years. Probably because it is very bright and very powerful, it leads to easy observation, as well as it is a potential research object with NASA.
"The effort of 30 years of observing, studying SN 1987A is extremely important, because it provides us with invaluable information about the last step in the evolution of a star, " said Robert Kirshner of Central Vietnam. Harvard-Smithsonian Center for Astrophysics said.
This supernova is always monitored by various measures.
With this information, astronomers confirmed that the supernova surpassed an important threshold: they discovered that the pulses of movement moved farther away from the dense gas ring surrounding the throne. This star in its pre-ultramodern stage.
These shockwaves appear when a rapid wind blows from inside the star exposed to a slower wind created during the period it is still a giant red star.
SN 1987A is in the center of the picture .
However, the results of the 30-year study did not clarify what is outside the huge gas border.
"These details will allow astronomers to better understand the end of the life of a dying star, how it fades," said Professor Karri Frank from Penn State University, The head of the SN 1987A research group at Chandra Observatory said.
These big supernovae can stimulate the formation of new stars and planets. They are made up of gas that is rich in elements of carbon, nitro, oxygen and iron - the basic components of life, created during the pre-supernova period and during the burning of super nova.
According to scientists, the study of supernova can tell us more about the process of formation of planets.
SN 1987A over time.
After 30 years of research, the Hubble telescope records also tell us that the gas ring around the supernova glows strongly, with a gas ring diameter of nearly a light-year.
This giant bracelet has existed for at least 20,000 years before the supernova exploded, and ultraviolet light from the explosion energized the gas inside, making it continue to glow until now. hours.
Now, the Hubble image shows that the structure in the middle of the gas circle has grown up, with a diameter of nearly half a light-year.
Photo SN 1987A from different telescopes.
Data collected by Chandra Observatory from 1999 until 2013 showed that the x-ray emission circle is becoming brighter. But the last few years, the latest is data from February 2013 until September 2015, that giant round has not been brighter anymore. The measured data showed that the total amount of x-ray energy was stable.
Moreover, the lower left part of the gas ring has begun to fade with time.
Astronomers believe that the shockwave of the explosion has spread to the area of thinner gas, areas outside the giant gas circle. This is the time to mark an end-stage "evolution " of the supernova.
Perhaps, the early universe was gradually formed that way.
Currently, the international research team is looking to see if after a supernova explodes, a black hole or a neutron star appears.
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