Neutron Stars

What is the initial reaction of astronomers to the properties of neutron stars?

• They thought it was a new type of galaxy.

• They believed it was a black hole.

• They considered the possibility of alien involvement.

• They thought it was a new type of planet.

What happens when the core of a high mass star collapses?

• It explodes into a supernova.

• It becomes a neutron star.

• It turns into a black hole.

• It forms a white dwarf.

What is the density of neutronium, the material of neutron stars?

• 400 kilograms per cubic centimeter

• 400 tons per cubic meter

• 400 million tons per cubic centimeter

• 400 grams per cubic meter

How does the spin of a neutron star change after its formation?

• It remains the same.

• It increases dramatically.

• It stops completely.

• It slows down significantly.

What is a pulsar?

• A rapidly spinning neutron star

• A type of black hole

• A dying star

• A new type of galaxy

What unique feature do pulsars exhibit?

• They emit continuous light.

• They have a stable spin and emit pulses.

• They are invisible to telescopes.

• They absorb all light.

What is a magnetar?

• A neutron star with a weak magnetic field

• A neutron star with an extremely strong magnetic field

• A type of black hole

• A new type of planet

What was the effect of the 2004 magnetar flare on Earth?

• It had no effect on Earth.

• It caused a global blackout.

• It increased Earth's gravity.

• It compressed Earth's magnetic field.

How rare are magnetars compared to other neutron stars?

• They are relatively rare, about 10% of neutron stars.

• They are more common than neutron stars.

• They do not exist.

• They are equally common as neutron stars.

What is hinted at as being even stranger than neutron stars?

• Supernovae

• Galaxies

• Black holes

• White dwarfs