Accretion on to strange-matter pulsars
We study the effects of the accretion of normal matter on to strange-matter pulsar models. It is assumed that, because of the high strangeness barrier, normal matter is inert in contact with Q α matter. For this reason, normal matter accretion is able to form a thick outer layer with densities far a...
| Authors: | , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 1994 |
| Country: | Argentina |
| Institution: | Universidad Nacional de La Plata |
| Repository: | SEDICI (UNLP) |
| Language: | English |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/145043 |
| Online Access: | http://sedici.unlp.edu.ar/handle/10915/145043 |
| Access Level: | Open access |
| Keyword: | Astronomía accretion accretion discs dense matter equation of state stars: neutron pulsars: general |
| Summary: | We study the effects of the accretion of normal matter on to strange-matter pulsar models. It is assumed that, because of the high strangeness barrier, normal matter is inert in contact with Q α matter. For this reason, normal matter accretion is able to form a thick outer layer with densities far above neutron drip. Accretion can make the superfluid quark-alpha Q α a layer disappear by solidification but, for the same reason, a superfluid neutron layer is formed. The fractional moment of inertia of the latter is large enough to fulfil the vortex-creep glitch model requirements. The high rotational stability of millisecond pulsars is discussed in the framework of the strange-matter hypothesis |
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