The 1995 analysis he refers to is “Radiation Properties of Pulsar Magnetospheres: Observation, Theory, and Experiment” by Kevin Healy and Anthony Peratt. Healy and Peratt concluded, “Our results support the ‘planetary magnetosphere’ view, where the extent of the magnetosphere, not emission points on a rotating surface, determines the pulsar emission.”
In other words, we do not require a hypothetical super-condensed object to form a pulsar. A normal stellar remnant undergoing periodic discharges will suffice. Plasma cosmology has the virtue of not requiring neutron stars or black holes to explain compact sources of radiation.While these two paragraphs are occasionally misleadingly presented as one quote in some discussion forums (link), the paragraph in bold is NOT in Healy & Peratt. The 'planetary magnetosphere' concept Healy & Peratt reference is Michel (1982). Some aspects of this are even described in Section 4 of Healy & Peratt, including a footnote noting the similarities between pulsar emission and the decametric radio emission of Jupiter.
More details can be found in Wikipedia: Jupiter as a pulsar and in T.W. Hill and A.J. Dressler (1995) or Sections 1.4 and 7.2 of Michel(1991).
Three key points from these relevant to the planetary magnetosphere model for pulsars:
1) The primary mechanism is rotating magnetic dipole, the magnetic axis, B, is offset from the rotational axis, omega, (as in the figure below), embedded in a plasma.
2) The pulse periods are still driven by the rotation period of the object. Millisecond pulse periods still require a rapidly rotating, and therefore very compact, object.
3) The radiation mechanisms for pulsars still require strong magnetic fields. The comparison to planetary magnetospheres is connected to the actual radiation mechanism of the particles moving along the magnetic field lines (Birkeland currents).
The bottom line is that Healy & Peratt (1995) does not rule out the need for a compact object, such as a neutron star, to explain the timing characteristics of pulsars. The primary point of their paper is that the source of emission is in the pulsar magnetosphere, making the analogy with emission from Jupiter's magnetosphere.
A large amount of Michel (1982) deals with electrodynamics of a plasma in a rotating magnetic dipole field, independent of the nature of the central object, the details of which provide a boundary condition for the system, and therefore may have applications to other “Electric Sun” claims. Also examines some unconventional pulsar mechanisms examined.
- Michel, F. Curtis. “Theory of Neutron Star Magnetospheres” University of Chicago Press, 1991.
- Hill, T. W.; Dessler, A. J. Space Physics and Astronomy Converge in Exploration of Jupiter's Magnetosphere. Earth in Space, Vol. 8, No. 2, Oct 1995, p.6. 1995
- Healy, K.R. & Peratt, A.L. Radiation Properties of Pulsar Magnetospheres: Observation, Theory, and Experiment. Astrophysics & Space Science, 227:229–253, May 1995.
- Michel, F.C. Theory of pulsar magnetospheres. Reviews of Modern Physics, 54:1–66, January 1982.