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How do pulsars spin so fast?
Because of the conservation of rotational momentum. As a stars core collapses, it retains the original rotational velocity. As a pulsar or neutron star's original size was in the region of 60,000 time greater that it's current form, the rotational speed is multiplied by this factor. Maintaining the rotational momentum requires the star to spin faster.
What are physical examples of vectors which are perpendicular to their derivatives?
One physical example of a vector perpendicular to its derivative is angular momentum in the case of rotational motion. The angular momentum vector is perpendicular to the angular velocity vector, which is the derivative of the angular displacement vector. Another example is velocity and acceleration in circular motion, where velocity is perpendicular to acceleration at any given point on the circular path.
How to find the diameter of a star?
To find the diameter of a star, scientists use a method called interferometry. This involves combining data from multiple telescopes to create a detailed image of the star's surface. By measuring the angular size of the star and its distance from Earth, astronomers can calculate its diameter.
What is the favored explanation for the rapid spin rate of millisecond pulsar?
The favored explanation for the rapid spin rate of millisecond pulsars is that they are formed through the process of accretion from a binary companion. As material falls onto the pulsar from the companion star, its rotation speed increases due to conservation of angular momentum. This process can ultimately accelerate the pulsar to millisecond spin periods.
Light from a star travels to earth in a straight line at a constant speed of almost 300000 km s what is the acceleration of light?
The speed of light is constant at about 300,000 km/s in a vacuum, so light does not experience acceleration.
When the core of a star shrinks after hydrogen fusion stops the core heats up but what happens to the star?
The rest of the star expands.
Why do neutron stars tend to have high angular velocities?
That's because of conservation of angular momentum - and the fact that neutron stars are very small. If a star the size of our Sun rotates (for example) once a month, once it shrinks to a diameter of 20-30 km., it will have to rotate several times per second in order to conserve angular momentum.
What are the release dates for George Shrinks - 2000 A Star Is Shrunk 3-2?
George Shrinks - 2000 A Star Is Shrunk 3-2 was released on: USA: 7 January 2003
How a neutron star spins so fast using the law of conservation of angular momentum?
Angular momentum is the energy of spinning objects. We can calculate the energy as the product of the mass times the "moment arm", the distance from the center of rotation tims the speed of rotation. In any closed system, angular momentum is "conserved", or remains constant.On a merry-go-round on the playground, if you get it going and then move toward the center, it speeds up a little. If you move out toward the edge, it slows down.An ice skater spins with her arms extended at a particular speed, but when she pulls in her arms, the rate of spin increases - but the angular momentum remains the same. Her hands and arms, pulled in, have a shorter "moment arm", so to keep the angular momentum constant, the speed increases.A star like our Sun spins in about 25 days. Our Sun is too small to go nova, so let's imagine a star twice as massive. If it were to go nova, about half of the mass would be blown off into space, but the remainder would be crushed into a tiny ball perhaps 20 miles in diameter. But that spinning star, with a rotation speed of perhaps 25 or 30 days, would keep a good part of the angular momentum. The star which once spun at a rate of one rotation per 25 days, with a radius of a half-million miles, now has a radius of 10 miles. So to keep the same angular momentum in such a small package, the neutron star remnant would spin much faster; probably several times per SECOND.
What is when a star shrinks in on itself until it can shrink no further and it has a massive explosion?
A Super Nova
How do pulsars spin so fast?
Because of the conservation of rotational momentum. As a stars core collapses, it retains the original rotational velocity. As a pulsar or neutron star's original size was in the region of 60,000 time greater that it's current form, the rotational speed is multiplied by this factor. Maintaining the rotational momentum requires the star to spin faster.
Why does a protostar rotate?
A protostar rotates due to conservation of angular momentum. As the protostar collapses from a rotating cloud of gas and dust, its rotational speed increases due to the conservation of angular momentum. This rotation plays a crucial role in shaping the final properties of the star and its surrounding planetary system.
When the star die what did it become?
During last ages of life of a star, to find what happens in coming ages of life of star. It determines on its mass explained by chandrashekher that if the mass of given star is 2.42 times the mass of our sun then it explodes in the form of supernova. If the mass of given star is less than the 2.42 times the mass of our sun then it shrinks to become white dwarf.
What happens when a star becomes red?
When a star tuns red it ceases to fuse hydrogen in its core and starts to fuse other elements (notably helium). When this happens the core shrinks but gets much hotter and the outer envelope of the star expands. This means that while the star is pumping out more energy this is happening over a wider area of surface so the temperature of any one area of the stellar surface is lower than it was before - and the star looks red.
What is the angular separation from the pointer star to Arcturus?
I do not know which star is the one you refer to as "Pointer Star" but Arcturus has a declination (angle above the celestial equator) of +19° 10′ 56″. If yout "Pointer Star is "Polaris" then the angular distance between these stars is (90° - 19° 10′ 56″) or 70° 49' 04"
I am given the bolometric BC equals -1.46 and the visual magnitude V equals 4.33 of a star. how do you calculate the angular diameter?
The bolometric correction allows you to convert between visual and bolometric (total) magnitude - where the bolometric magnitude includes all radiation emitted by the star, not just visible light. It has nothing to do with the angular diameter.
When was Speed Star created?
Speed Star was created in 2008.
