Most
astronomers agree the explosion occurred because the star’s core ran low on
high-energy fuel, while some believe another star merged with the blue super-giant
to generate the blast.
In that
moment, the fusion-powered core of the star began to fade. The cause could be
any one of both as the star collapsed under its own gravity, exploded, created
the power of 100 million suns in the process. We now call the object Supernova
1987A, or SN 1987A.
via Gfycat
It is the
first time when scientists were being able to record the supernova, and it was
also the brightest one, seen for last hundred years.
NASA’s
Chandra X-ray Observatory team said: “Supernova 1987A became one of the best
opportunities ever for astronomers to study the phases before, during, and
after the death of a star”.
This data
that has been recorded gives astronomers an extra edge to study of how stars
form and die. NASA recently honored the supernova’s anniversary with a bunch of
new multimedia, and a few of the images and an animation caught our eye.
via Gfycat
via Gfycat
This
animation gives you some hint about that where in the night sky SN 1987A is
located.
The remnants
lurk inside the Large Magellanic Cloud, a dwarf galaxy that trails the Milky
Way some 168,000 light-years from Earth.
It took
really long for the light to reach us as this event technically happened
168,000 years in the past.
via Gfycat
via Gfycat
About once a
month over the course of more than past many years, the Hubble space telescope
has photographed SN 1987A and its traveling shock wave.
Starting
around the year 2000, they saw the shockwave begin slamming into a 1-light-year-wide
ring of gas and dust that the star threw off before its death, creating a
brilliant, bubbling glow.
According to
a pre-print study posted to arXiv.org, researchers now believe the high-speed
blast wave is leaving the field of gas and dust, marking the beginning of a
“major change” in its evolution, this new animation is of a computer model that
shows SN 1987A’s explosion and entire evolution through 2017, and in three
dimensions.
The study on
this model arXiv led by, an astrophysicist Salvatore Orlando at the
INAF-Osservatorio Astronomico di Palermo in Italy.
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