Why is Supernova 1987A particularly important to astronomers? It is the nearest supernova to have occurred at a time when we were capable of studying it carefully with modern telescopes. … It is produced during the supernova explosions of high-mass stars.

Why was Supernova 1987A so important?

Supernova 1987A was the brightest supernova seen from Earth in the four centuries since the telescope was invented. It was the first opportunity for modern astronomers to see a supernova up close. Observations since then of Supernova 1987A have provided much insight into these fascinating objects.

What type of spectrum did you observe for Supernova 1987A?

SN1987A was classified as a Type II supernova, i.e., its spectrum was dominated by hydrogen lines. But it had an unusual light curve, which continued to brighten for about three months after its initial outburst before it began to fade.

How did Supernova 1987A demonstrate that new elements are made in supernova explosions?

How did Supernova 1987A demonstrate that new elements are made in supernova explosions? Some of the energy produced in the event we call Supernova 1987A was used to blow the star apart. Out of the following places that the energy of this event could go, which absorbed by far the most energy?

Was Supernova 1987A visible to the naked eye?

On February 23, 1987, the brightest supernova in almost four centuries years was observed in the Large Magellanic Cloud, a small galaxy on the outskirts of the Milky Way. It was so bright that it was visible to the naked eye from Earth’s surface, emitting the power of a 100 million Suns.

How are supernovae useful?

Supernovae add enriching elements to space clouds of dust and gas, further interstellar diversity, and produce a shock wave that compresses clouds of gas to aid new star formation.

Why is iron significant to understanding how a supernova occurs?

Why is iron significant to understanding how a supernova occurs? Iron cannot release energy either by fission or fusion. It is produced during the supernova explosions of high-mass stars. Which two processes can generate energy to help a star maintain its internal thermal pressure?

Why is Supernova 1987A particularly important to astronomers quizlet?

Why is Supernova 1987A particularly important to astronomers? It is the nearest supernova to have occurred at a time when we were capable of studying it carefully with modern telescopes. Where does gold (the element) come from? It is produced during the supernova explosions of high-mass stars.

What type of spectrum did you observe for Supernova 1987A quizlet?

You observe an absorption spectrum from some star’s light. This means what? Recordings show that SN 1987A was detected by neutrinos on February 23, 1987. About 3 hours later, it was detected in optical light.

How was Supernova 1987A discovered?

Data taken by a small telescope aboard the International Ultraviolet Explorer (IUE) satellite helped astronomers identify the exploding star’s location as Sanduleak -69° 202, the former site of a blue supergiant about 20 times the mass of the sun. They named the exploding star Supernova 1987A.

What observations from SN 1987A helped confirm theories about supernovae?

What observations from SN 1987A helped confirm theories about supernovae? The observation of SN 1987A supernova helped to detect neutrinos from the core collapse and confirmed the theoretical calculations of what happens during such supernovae explosion. It explains process of formation of elements beyond iron.

Would you expect to observe every supernova in our own galaxy?

Only some of the supernovae that occur in our Galaxy are observable. Type II supernovae (the explosions of massive stars) tend to occur in the disk of the Milky Way, and they may be hidden by intervening dust if they are located in more distant parts of the Galaxy.

What is the connection of supernova to astronomical phenomena?

A supernova (/ˌsuːpərˈnoʊvə/; pl. supernovae /-viː/ or supernovas; abbr. SN and SNe) is a powerful and luminous stellar explosion. This transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion.

When were the neutrinos from the supernova 1987A first detected on Earth?

On February 23, 1987, just before 30 years from today, the neutrinos emitted from the supernova explosion SN1987A in the Large Magellanic Cloud, approximately 160,000 light-years away, reached the earth.

Which stars become neutron stars?

Any main-sequence star with an initial mass of above 8 times the mass of the sun (8 M ☉) has the potential to produce a neutron star. As the star evolves away from the main sequence, subsequent nuclear burning produces an iron-rich core.

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