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Neutron stars are very small, about the size of a small city, which means they have a much smaller surface area from which to emit light than other stars. So even if the amount of light per square meter ies greater than that of an ordinary star, the total amount of light emitted is smaller.
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What is a small hot very dense star?
Both white dwarfs and neutron stars match the description. Neutron stars are smaller, hotter, and denser.
Why does theory predict that a neutron star should spin fast?
Neutron stars are born from massive stars collapsing, which conserves the original star's angular momentum. Since the original star had a slow rotation, the neutron star that forms from it will have a faster spin due to the conservation of angular momentum.
Two important properties of young neutron stars are?
Rapid rotation: Neutron stars can spin incredibly fast, with some completing hundreds of rotations per second. Strong magnetic fields: Neutron stars have extremely powerful magnetic fields, magnitudes stronger than any other object in the universe, which can influence their behavior and emit radiation.
When A neutron star is the densest substance in the universe What does it tell you about its mass and volume?
It means it's mass is very high and its volume is very low. A standard neutron star has a mass thousands of times greater than the sun, but a volume of a small city. This ridiculously high density and pressure also account for the high temperatures of neutron stars. PS. Quark stars are denser than neutron.
What determines whether a very massive star will become a neutron?
Whether a star will become a neutron star is determined by its mass. Generally, stars that are more than 8 solar masses (have a mass that is more than 8 times that of our Sun), but are less than 15 solar masses will become neutron stars when they die.
What color are very heavy stars?
Generally, the more massive a star is, the more luminous they are. The most luminous stars appear blue.
What types of stars have very high surface temperatures but are not very luminous?
white dwarfs
What is known about stars that are placed toward the top of the H-R diagram?
They are very bright or luminous stars.
What is a Very small hot star?
Both white dwarfs and neutron stars match the description. Neutron stars are smaller, hotter, and denser.
What is a small hot very dense star?
Both white dwarfs and neutron stars match the description. Neutron stars are smaller, hotter, and denser.
Why are neutron stars blue?
Because when they are newly formed, they are very hot.
Which stars are very cool but very luminous?
Red supergiant stars, such as Betelgeuse and Antares, are examples of stars that are very cool in temperature while still being extremely luminous due to their large size and high brightness. Despite their cool surface temperatures, they radiate a tremendous amount of energy into space.
Why are neutron stars white?
Early neutron stars are white because they are very hot. New neutron stars will have a surface temperature of around 1011 to 1012 degrees kelvin and will cool to around 1,000,000 degrees kelvin after a few years. Over time it will slowly cool even more.
Why does theory predict that a neutron star should spin fast?
Neutron stars are born from massive stars collapsing, which conserves the original star's angular momentum. Since the original star had a slow rotation, the neutron star that forms from it will have a faster spin due to the conservation of angular momentum.
What is a star that has collapsed after using its fuel?
A collapsed star after using up its fuel is called a white dwarf, neutron star, or black hole, depending on its mass. White dwarfs are remnants of low to medium mass stars, neutron stars are remnants of massive stars, and black holes are formed when very massive stars collapse.
How luminous is a white dwarf?
White dwarfs are not very luminous compared to other stars. While they can be thousands of times more luminous than the Sun due to their high surface temperatures, their small size limits their overall brightness. They are often dimmer than main sequence stars of similar mass.
Is there a neutron star heading in your direction?
There are millions of stars out there; that includes neutron stars. All of them are moving around. Some are moving towards us, some are moving away from us. Since there is usually also a sideways component to the movement, and the average distance between stars is very large, it is very unlikely that any star - neutron star or otherwise - will crash into us any time soon.
