Which statement about Schwarzschild radii is not true?

Which statement about Schwarzschild radii is not true?

Which statement concerning black holes masses and Schwarzschild radii is NOT true? NOT true- The maximum mass for a black hole corresponds to one with a Schwarzschild radius of 100 km. Suppose you drop a clock toward a black hole.

Which of the following is not true about differences between novae and supernovae?

Which of the following is not true about differences between novae and supernovae? Supernovae eject gas into space but novae do not. Will our Sun ever undergo a white dwarf supernova explosion?

Which of the following is closest in radius to a white dwarf?

Sirius B

What are the characteristics of a neutron star?

neutron star, any of a class of extremely dense, compact stars thought to be composed primarily of neutrons. Neutron stars are typically about 20 km (12 miles) in diameter. Their masses range between 1.18 and 1.97 times that of the Sun, but most are 1.35 times that of the Sun.

Which statement about pulsars is not thought true?

Which statement about pulsars is not thought to be true? Pulsars can form only in close binary systems. How does an accretion disk around a neutron star differ from an accretion disk around a white dwarf? The accretion disk around a neutron star is much hotter and emits higher-energy radiation.

Is the Schwarzschild radius is around the neutron star?

The Schwarzschild radius is Rs2GM/c2 and therefore Rx26gt;1.23Rs for stability. This limit is reached for a neutron star with Mu22433.5Mu2299.

What is true about SN1987A see the following image )?

What is true about SN1987A (see the following image)? All choices are true. Neutrinos were detected before the visible blast. It was a supernova seen in the Large Magellanic Cloud.

What would happen if the Sun suddenly became a black hole without changing its mass?

What would happen if the Sun suddenly became a black hole without changing its mass? The black hole would quickly suck in the Earth.

How can we tell the difference between a white dwarf supernova and a massive star supernova from observations quizlet?

Observationally, how can we tell the difference between a white-dwarf supernova and a massive-star supernova? The spectrum of a massive-star supernova shows prominent hydrogen lines, while the spectrum of a white-dwarf supernova does not.

How do massive star supernovae and white dwarf supernovae differ quizlet?

A(n) massive star supernova occurs when fusion creates iron in the core of a star. A white dwarf in a close binary system will explode as a supernova if it gains enough mass to exceed the white dwarf limit (1.4 solar masses).

Will our sun ever undergo a Type Ia white dwarf supernova explosion Why or why not?

Explanation: Our sun is too small to go nova or supernova. It will ultimately enter a red giant stage and then collapse as a white dwarf. It would need to be at least eight times more massive to nova.

What is closest in radius to a white dwarf?

Sirius B

What is the radius of a white dwarf?

It follows that the radius of a typical solar mass white-dwarf is about 7000km: i.e., about the same as the radius of the Earth. The first white-dwarf to be discovered (in 1862) was the companion of Sirius.

What is the nearest white dwarf?

Sirius B

What can the size of a white dwarf be compared to?

A low or medium mass star (with mass less than about 8 times the mass of our Sun) will become a white dwarf. A typical white dwarf is about as massive as the Sun, yet only slightly bigger than the Earth. This makes white dwarfs one of the densest forms of matter, surpassed only by neutron stars and black holes.

What is the neutron star known for?

The neutron stars known as magnetars have the strongest magnetic fields, in the range of 108 to 1011 tesla, and have become the widely accepted hypothesis for neutron star types soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs).

Can you touch a neutron star?

You can’t touch a neutron star. The gravity is so intense that you would be spaghettified long before you got close enough to touch it. Your fingertips would be stretched out to a hundred miles long, while you feet would be thousands of miles away.

How do you identify a neutron star?

Neutron stars are very hard to find since they are so small and not very bright. The easiest way to find them is when they emit beams of radiation as pulsars. Perhaps as you know, this happens when the rotation axis of the neutron star and the magnetic dipole axis are misaligned.

What causes a pulsar?

Pulsars belong to a family of objects called neutron stars that form when a star more massive than the sun runs out of fuel in its core and collapses in on itself. This stellar death typically creates a massive explosion called a supernova. Pulsars are neutron stars are also highly magnetic.

What happens pulsar?

As a hot pulsar cools, its interior increasingly begins to turn superfluid — a state of matter which behaves like a fluid, but without a fluid’s friction or ‘viscosity’. It is this change of state which gradually affects the way that the star’s rotation slows down.

Do pulsars emit visible light?

Which statement concerning black holes masses and Schwarzschild radii is NOT true? NOT true- The maximum mass for a black hole corresponds to one with a Schwarzschild radius of 100 km. Suppose you drop a clock toward a black hole.

Where is the Schwarzschild radius?

Parameters.ObjectUranusMass8.681xd71025 kgSchwarzschild radius1.29xd710u22121 mActual radius2.56xd7107 mSchwarzschild density or9.68xd71027 kg/m318 more columns

What does the Schwarzschild radius depend on?

The distance from the center of a non-rotating black hole to the event horizon is known as the Schwarzschild radius. The Schwarzschild radius depends only on the mass of the object, meaning the greater the mass, the larger the Schwarzschild radius.

What has a Schwarzschild radius?

Schwarzschild radius, also called gravitational radius, the radius below which the gravitational attraction between the particles of a body must cause it to undergo irreversible gravitational collapse. This phenomenon is thought to be the final fate of the more massive stars (see black hole).

What is the average radius of a neutron star?

between 10 and 20 kilometers

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