On average, a supernova explosion occurs within 10 parsecs(33 light-years) of the Earth every 240 million years.
これは、超新星から噴出した高温の物質が冷えて凝縮して固体粒子になったものと推測することができます。
We can interpret this as follows: the high-temperature materials ejected from the supernova are cooled, condense and eventually become solid particles.
超新星などの紫外線、恒星風と究極の終焉の彼らの強烈な出力は、星間物質を形作る。
Their intense output of ultraviolet radiation, stellar winds and ultimate demise as supernovae shapes the interstellar medium.
天文学者たちは、最も古い発見した最も遠い超新星これまでに見つかった。
Astronomers have discovered the oldest and most distant of the Supernova found so far.
とも座A(PuppisA)は、直径約10光年の超新星残骸である。
Puppis Ais a supernova remnant(SNR) about 10 light-years in diameter.
それに対して、太陽のように小さくて黄色い恒星は、超新星爆発をしない。
Relatively low-mass stars like the Sun do not explode as supernovae when they die.
Supernova explosion is about once in a hundred years in one galaxy, but if you use a large enough telescope, you can see the 100,000 galaxies in the night sky of the size of the coin.
Laser beams 60,000 billion times more powerful than a laser pointer have been used to recreate scaled supernova explosions in the laboratory as a way of investigating one of the most energetic events in the Universe.
Therefore, supernovae, which are explosions of short-lived massive stars with more than 10 times the mass of the Sun, have been considered to be major sources of dust in the early universe.
Thankfully, astronomers eventually discovered the truth and the object was given its correct classification as a Type II supernova, resulting from the death of a star between eight and 50 times the mass of the Sun.
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