What are some major characteristics of a pulsar?

Answer 1

1. Formed from the aftermath of super novae.
2. Very dense (one tablespoon would weigh tons)
3. Rapidly rotating neutron star emitting electromagnetic waves (usually in the radio band but there are optical, X-ray and Gamma ray ones as well) from its magnetic poles.
4. Rotation speed is very fast, normally anywhere from 1 millisecond to 4 seconds.
5. No pulsars have been observed outside our galaxy as pulsars are rather weak radio emitters.
6. They reside mainly within the galactic disk although they have been observed in globular clusters.

Answer 2

A pulsar is a collapsed star, with a very strong gravity field, but also a strong magnetic field. Charged particles are directed around the pulsar by the magnetic field, and ejected at high velocity from the magnetic poles. In a pulsar, the magnetic poles do not coincide with the rotational axis. So, each magnetic pole ends up spinning perpendicular to its own axis. This means that the direction from which the charged particles are emitted also rotates around the star. The effect is like a light-house in space, emitting a broad spectrum of EM radiation and charged particles.

Answer 3

Pulsars are rotating neutron stars which emit detectable electromagnetic radiation in the form of radio waves. The radiation intensity varies with a regular period, believed to correspond to the rotation period of the star. Pulsars also exhibit a so-called lighthouse effect, which occurs when the light and other radiation from a pulsar are only seen at specific intervals and not all of the time. Werner Becker of the Max-Planck-Institut für extraterrestrische Physik recently said,

“ The theory of how pulsars emit their radiation is still in its infancy, even after nearly forty years of work."

Answer 4

Besides being a neutron star (small size, solar mass of material, mostly neutrons, large density --- like an atomic nucleus ---, strong magnetic field, and fast rotation), one can add that pulsars slow in their rotation rates as they age. The rotation energy is lost to the surrounding medium (the pulsar stirs up the surrounding medium via electromagnetic effects). However, the pulsars typically slow down at a very slow rate --- they are therefore very accurate clocks!!

Answer 5

Rotation-powered pulsars, where the loss of rotational energy of the star powers the radiation
Accretion-powered pulsars (accounting for most but not all X-ray pulsars), where the gravitational potential energy of accreted matter is the energy source (producing X-rays that are observable from Earth), and
Magnetars, where the decay of an extremely strong magnetic field powers the radiation.

Answer 6

pulsar is a dead star which rotates at a high speed.becuz of this it emits a radio pulse periodically. They are actually the dense core of a dead star. and are formed after star a blasts off

Answer 7

Pulsars emit only x-rays and are only detected by a radio telescope.

Answer 8

Its a car made by Nissan. It has 4 wheels and an engine.

Answer 9

pulsating neutron star is called pulsar.It emits radio waves,which can be used in radio communication.