Hereafter, the following notational conventions will be used: we denote the quantities referred to SPC by wiggles, while the corresponding quantities of neutron star or quark star are left without wiggles.
Burrows, "Beta decay in quark stars," Physical Review Letters, vol.
(2009) are, either that the neutron star has not yet developed a strong enough magnetic field, or it became a black hole with a very low accretion rate, or that it underwent a phase transition and became a
quark star. Chan predicts this would have been accompanied by rapid fluctuations in the initial neutrino flux, leaving an object currently radiating about 0.1 per cent of the energy coming from radioactive decay.
One such bizarre object is termed a strange
quark star. It is "strange" because its supply of dense matter is composed primarily of strange quarks, which would represent a stage of collapse even denser than that characterizing a neutron star.
A resulting
quark star, for example, would consist of up and down quarks, which make up protons and neutrons, and also strange quarks, which are heavier and not found in ordinary matter.
On closer look, however, each showed evidence of being an even smaller, denser object called a
quark star or strange star.
Now it appears the star may be a more bizarre--and up until now hypothetical--object called a
quark star, says Jeremy J.
Even though the theory remains somewhat controversial, studies of QPOs may one day lead to the unambiguous identification of a
quark star.
The nuggets could be made in processes associated with a
quark star, a star made up of a lot of quarks stuck together -- if such a thing happens to be at the heart of Cyg X-3.
These findings can impact the physics of hybrid stars (neutron stars with quark matter) or strange
quark stars in several ways.
''If details of high-density conditions become clear, I think research to understand the mass of protons and neutrons, as well as in neutron stars and even higher-density
quark stars, will progress significantly,'' said Masahiko Iwasaki, chief researcher of the government-affiliated Institute of Physical and Chemical Research and a member of the group.