from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of several celestial radio sources emitting short intense bursts of radio waves, x-rays, or visible electromagnetic radiation at regular intervals, generally believed to be rotating neutron stars.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. : A rotating neutron star that emits radio pulses periodically
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a degenerate neutron star; small and extremely dense; rotates very fast and emits regular pulses of polarized radiation
BTW, it doesn't matter if the pulsar is moving away.
Sun. Pulsars: A pulsar is a rapidly rotating neutron star with a strong magnetic field.
A pulsar is a rapidly rotating neutron star with a strong magnetic field.
The radiation emitted by the binary pulsar is too weak to be observed on the earth with existing techniques.
The orbiting time of the binary pulsar is less than eight hours, which can be compared with the one month our moon takes to orbit the earth.
A very important property of the new pulsar is that its pulse period, the time between two beacon sweeps (0.05903 see) has proved to be extremely stable, as opposed to what applies to many other pulsars.
The discovery of the first binary pulsar is primarily of great significance for astrophysics and gravitational physics.
The pulsar is then perceived from the earth as a radio beacon!
The best known pulsar is to be found in the Crab Nebula.
At the heart of the nebula's colorful layers of gas is a so-called pulsar, which is the remains of the original star's core that collapsed in on itself into a
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