Re: APOD: Supernova Cannon Expels Pulsar J0002 (2022 Oct 02)
Posted: Wed Oct 05, 2022 2:58 am
IMHO today's physics is not ready to say ifjohnnydeep wrote: ↑Mon Oct 03, 2022 1:54 pmWow! That's pretty cool. From the link:jamjam wrote: ↑Mon Oct 03, 2022 2:01 am Well the mechanism wasn't known back in 2019 when this first appeared, but recently it’s been proposed https://phys.org/news/2022-08-neutrino ... lsars.html that neutrino emission which is asymmetrical because such emission can violate parity causes the pulsars to jet off, and I’d bet that's right.
So, I wonder how long this "neutrino beam rocket" can fire, and if there is any upper limit (other than c of course) to how fast it can propel the neutron star.It has been shown that Cooper pairs of neutrons that have been formed by neutron binding also undergo gyrator motion in the superfluid region of neutron stars. Based on calculations, the researchers discovered that these left- and right-handed neutrinos, which are emitted by neutron Cooper pairs, have high energies.
Furthermore, left-handed neutrinos and right-handed neutrinos emit in the same direction due to their non-conservation of parity. As a result of the conservation of momentum, when a neutron star emits a neutrino stream along its rotation axis, the neutron star itself acquires a recoil velocity in the forward direction along its rotation axis.
1) superfluidity fraction of neutron liquid can exist at high temperature of a neutron star
2) Cooper pairs of neutrons can exist at high gravity of a neutron star
3) there is enough protons going neutrons (u-quarks going d-quarks) to drive the neutron star up to 1000 km/s