Why do pulsars emit radiation from both poles?

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SUMMARY

Pulsars emit radiation from both poles due to charged particles being accelerated along magnetic field lines, which are strongest at the poles of the neutron star. This acceleration results in the emission of radiation along the movement axis of the particles. Both protons and electrons move along these field lines, contributing to the radiation emitted from both the north and south poles. The phenomenon of synchrotron radiation occurs as these charged particles spiral along the magnetic field lines, emitting photons in the process.

PREREQUISITES
  • Understanding of neutron star physics
  • Knowledge of electromagnetic theory
  • Familiarity with particle acceleration mechanisms
  • Concept of synchrotron radiation
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  • Research the mechanics of neutron star magnetospheres
  • Study the principles of synchrotron radiation in astrophysics
  • Explore the behavior of charged particles in magnetic fields
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Astronomers, astrophysicists, and students studying high-energy astrophysics will benefit from this discussion, particularly those interested in pulsar mechanics and radiation processes.

rnielsen25
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Hi everyone,

The charged particles in the magnetic field around the neuton star, is accelerated along the magnetic field lines, which would go in a curve, from the north pole to the south pole. Due to the acceleration the particles will emit radiation, along their movement axis, and because the field lines is strongest at the poles, this is why we say they emit radiation from the poles.

But do both protons and electrons move along the magnetic field lines, or is it only the electrons? If both move along, why does a pulsar emit radiation from the south pole, and not only from the north pole? What i mean, is when the particles move towards the south pole, wouldn't they emit radiation toward the pole too, and not away from the star as on the north pole.

And if the positively charged particles move the other direction against the field lines, wouldn't they crash together and literally **** everything up? But what i thought i understood, is that both move along the field lines, but have opposite rotation around the field lines.

One thing more. If i understood this right, so the reason the particles is getting in the magnetosphere, is around the neutron star, a electric field occurs due to the plasma beeing accelerated around in the magnetosphere. This accellerates the electric charged particle up in the magnetic field. But if this is correct, how does that work in any way? I mean if, at first it is electrons who is in the plasma, then wouldn't the protons be accelerated up in the magnetosphere and align the electric potential? So how can a electric field occur?
 
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Why would you expect particles or radiation to follow our (human) arbitrary definition of "direction" (N->S) of field lines?
 
Well, i can't explain why. But like on earth, it seems like when charged particles is in a magnetosphere, they have a tendency to move in a helix along the magnetic field lines. This creates something called synchrotron radiation, where the photons is radiated along the particles movement axis.
 
Right, and particles can have this helix in both directions.
 

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