As I said above, in my research I have found inward moving ejecta. This has been seen by other researchers too.
I have explained it as being due to interaction with the external medium. If you have a much lower density on one side of the supernova remant than the other it will set up a pressure gradient within the remnant which pushes material to the less dense side. This has been confirmed through numerical hydrodynamic simulations.
Just finishing my PhD in astrophysics (after far too many years of training) I can tell you that your final sentence (other than the fact that pulsars are neutron stars) is gibberish.
Accretion does not create pulsars. It is also not thought that supernovae that are ignited by accretion (SN type Ia) create neutron stars at all. They are believed to expire in a massive explosion leaving all guts and no core (thermonuclear deflagration).
"This is the fundamental reason for the non-inertness with regard to motive frequency." is gibberish
Cliffton, most of what you say above is not correct.
the core falls in on itself, and it releases its stored heat in the form of ghostlike particles called neutrinos.
The core falls in on itself due to runaway gravitational collapse. The huge increase in density and energy density pushes atoms in upon themselves, forcing electrons into protons and forming neutrons. This in turn creates the neutrinos you mention, it also creates the neutron star.
As the neutrinos zig-zag out of nuclear fuel something extraordinary happens in the magnetic field that surrounds the newly formed neutron star.
The neutrinos have nothing at all to do with the magnetic field. The magnetic field is amplified because it is compressed due to the fact that the star shrinks from its normal huge size down to a neutron star of about 10 km.
After that, the core becomes denser than the other side and then, form peculiar objects with properties of binary pulsar systems.
There has been nothing of this sort ever postulated or observed. Such a configuration would be extremely unstable due to the excessively high gravity on a neutron star. 1 cubic centimeter of neutron star material would weigh millions of tons on earth. This type of gravitation would not allow for much asymmetry in the shape of the star itself.
Neutron stars, one group of which are called pulsars, are the cause - the accretion process is well known. This is the fundamental reason for the non-inertness with regard to motive frequency.
Yes, some neutron stars are pulsars, if they have a high enough magnetic field and are rotating fast enough. We would only see them as pulsars if their "pulsar beam" is pointing towards us.
Exactly! It is interaction with the ISM that slows the ejecta, eventually causing it to merge back into to the ISM out of which the star itself formed. It is actually quite a wonderous cycle.
What we don't really know is how much of the asphericity is due to the initial explosion and how much is due to the interaction with different densities in the external interstellar medium, since both produce the same effects.
I also answered a bit of this below, but I thought I would elaborate here...
Very early on in a supernova remnant's life the ejected material is moving very fast, 10-20,000 km/s. Within a few hundred years most of it is decelerated to less than half that. By a few 1000 years the material is moving a few to several 100 km/s. By 10,000 years (or a few times that) the ejecta slows to about 10 km/s, which is the average random velocity of the interstellar medium. At this point the remnant blends with the ISM and vanishes.
It is mostly going outward. BUT much of it is not going exactly radially outward. In all remnants where this has been measured there exists a significant non-radial component to the velocity. This could be caused by the asymmetric explosion, or the interaction with the surrounding medium.
True, the ejecta move faster than the neutron star. This is due to conservation of momentum.
This theory has been in place for a long time. It is a well known fact that neutron stars are often moving with high velocities. Many such objects have had their proper motions (angular velocities) measured. It is also known that supernova remnants (the guts of a star after it explodes at the end of its life) are not spherical. This is the topic of research that I work on. To answer a question above I have measured motions in supernova remnants that vary by over a factor of two. That is, one side may be moving at 5,000 km/s and the other may be moving at 2,000 km/s. One can also see much more rich structure in the kinematics of these complex objects. For instance, I have found material moving inwards! Now that certainly is not a spherical explosion!
Slashdot Mirror
I have explained it as being due to interaction with the external medium. If you have a much lower density on one side of the supernova remant than the other it will set up a pressure gradient within the remnant which pushes material to the less dense side. This has been confirmed through numerical hydrodynamic simulations.
Accretion does not create pulsars. It is also not thought that supernovae that are ignited by accretion (SN type Ia) create neutron stars at all. They are believed to expire in a massive explosion leaving all guts and no core (thermonuclear deflagration).
"This is the fundamental reason for the non-inertness with regard to motive frequency." is gibberish
The rest of the above is gibberish.
What we don't really know is how much of the asphericity is due to the initial explosion and how much is due to the interaction with different densities in the external interstellar medium, since both produce the same effects.
Very early on in a supernova remnant's life the ejected material is moving very fast, 10-20,000 km/s. Within a few hundred years most of it is decelerated to less than half that. By a few 1000 years the material is moving a few to several 100 km/s. By 10,000 years (or a few times that) the ejecta slows to about 10 km/s, which is the average random velocity of the interstellar medium. At this point the remnant blends with the ISM and vanishes.
It is mostly going outward. BUT much of it is not going exactly radially outward. In all remnants where this has been measured there exists a significant non-radial component to the velocity. This could be caused by the asymmetric explosion, or the interaction with the surrounding medium.
True, the ejecta move faster than the neutron star. This is due to conservation of momentum.
This theory has been in place for a long time. It is a well known fact that neutron stars are often moving with high velocities. Many such objects have had their proper motions (angular velocities) measured. It is also known that supernova remnants (the guts of a star after it explodes at the end of its life) are not spherical. This is the topic of research that I work on. To answer a question above I have measured motions in supernova remnants that vary by over a factor of two. That is, one side may be moving at 5,000 km/s and the other may be moving at 2,000 km/s. One can also see much more rich structure in the kinematics of these complex objects. For instance, I have found material moving inwards! Now that certainly is not a spherical explosion!