Question

Which one of the following statements about supernova is false? Please explain your answer. Question 22...

Which one of the following statements about supernova is false?

Please explain your answer.

Question 22 options:

A.

A neutron star is produced when a white dwarf exceeds a certain mass and becomes a supernova.

B.

At optical wavelengths, a supernova can appear about as bright as the entire galaxy in which it is located.

C.

A supernova produces an expanding volume of gas that is rich heavy elements.

D.

Nobody has seen a supernova in the Milky Way in the last century.

E.

One kind of supernova occurs when the iron core of a massive star collapses.

F.

a white dwarf can produce a supenovae.

Homework Answers

Answer #1

Option F is correct i.e. it's FALSE.

Lets see how.

When a star dies it has three possibilities

1. White dwarf

2. Neutron star

3. Black hole

When core mass is < 1.4 Msun then white dwarf and when core mass>1.4 Msun, then supernova and hence neutron star. When core mass>3 Msun, the black hole.

So a white dwarf can produce a a supernova as a white dwarf is very hot when it forms, but because it has no source of energy, it will gradually radiate its energy and cool and then it called as a dark or black dwarf star. But it can be, if it's part of a binary system, then it can accrete mass and then explode in one as tupe Ia supernova.

So option F is false that a white dwarf can produce a supernova. But remember it can if it's a part of binary system.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Which of the following is most similar to a white dwarf? A) The core of a...
Which of the following is most similar to a white dwarf? A) The core of a red giant. B) A pulsar. C) A neutron star. D) The core of a blue supergiant. Considering the conditions for equilibrium in stars, which star does not belong in the following list? - Blue Main Sequence star - Red Main Sequence star - Red Giant star - White Dwarf - Horizontal Branch star A) The Red Main Sequence star, because energy losses at its...
1. Inside a Red Giant, denser elements fuse and emit sufficient energy to balance thermal expansion...
1. Inside a Red Giant, denser elements fuse and emit sufficient energy to balance thermal expansion versus gravity, until fusion of: silica & sulphur helium carbon & oxygen iron deuterium & tritium 2. Structure of the Universe: 2dF and the Sloan Microwave Digital Survey plotted clusters of galaxies. What kind of structure was seen among super-clusters of galaxies? Filaments of galaxies surround voids that have no or very few galaxies inside. Super-clusters expand outward from a Big Bang source. Super-clusters...
What topics are covered in the following article? Please answer within 5 hours. It is extremely...
What topics are covered in the following article? Please answer within 5 hours. It is extremely urgent!!!!!!!!!!!!!!!!!!!!!!!! --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- BIOETHICS. Bioethics as a field is relatively new, emerging only in the late 1960s, though many of the questions it addresses are as old as medicine itself. When Hippocrates wrote his now famous dictum Primum non nocere (First, do no harm), he was grappling with one of the core issues still facing human medicine, namely, the role and duty of the physician....
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how the firms resources incompetencies support the given pressures regarding costs and local responsiveness. Describe entry modes have they usually used, and whether they are appropriate for the given strategy. Any key issues in their global strategy? casestudy: Atlanta, June 17, 2014. Sea of Delta employees and their families swarmed between food trucks, amusement park booths, and entertainment venues that were scattered throughout what would...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT