منابع مشابه
From Quark Stars to Hybrid Stars
We show the possible existence of compact stars having a surface composed of a mixed phase of quarks and hadrons. This scenario can be realized both for self-bound stars, satisfying the so-called Witten-Bodmer hypothesis, and for gravitationally bound stars. This class of solutions of the Tolman-Oppenheimer-Volkoff equation can be obtained in all the models we discuss, within a physically accep...
متن کاملDistinguishing Bare Quark Stars from Neutron Stars
Observations to date cannot distinguish neutron stars from self-bound bare quark stars on the basis of their gross physical properties such as their masses and radii alone. However, their surface luminosity and spectral characteristics can be significantly different. Unlike a normal neutron star, a bare quark star can emit photons from its surface at super-Eddington luminosities for an extended...
متن کاملPulsars and quark stars
Members of the family of pulsar-like stars are distinguished by their different manifestations observed, i.e., radio pulsars, accretion-driven X-ray pulsars, X-ray bursts, anomalous X-ray pulsars/soft gamma-ray repeaters, compact center objects, and dim thermal neutron stars. Though one may conventionally think that these stars are normal neutron stars, it is still an open issue whether they ar...
متن کاملRelativistic harmonic oscillator model for quark stars
The relativistic harmonic oscillator (RHO) model of hadrons is used to study quark stars. The massradius relationship is obtained and compared with bag model of quark star, using Tolman-OppenheimerVolkoff equation. In this model, the outward degenerate pressure due to discrete Landau levels and Landau degeneracy balances the inward gravitational pressure. Where as in bag model the degenerate pr...
متن کاملThe Chandrasekhar limit for quark stars
The Chandrasekhar limit for quark stars is evaluated from simple energy balance relations, as proposed by Landau for white dwarfs or neutron stars. It has been found that the limit for quark stars depends on, in addition to the fundamental constants, the Bag constant. Compact objects like the white dwarfs and neutron stars have been a topic of interest for several decades. These objects are pro...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics D
سال: 2007
ISSN: 0218-2718,1793-6594
DOI: 10.1142/s0218271807011103