compact stars


Abstract : Neutron stars, the compact remnants of type II supernova explosions, are some of the most mysterious objects in the Universe. These peculiar objects have a mass comparable that of the Sun, but are packed into a space only 20 km across. The average density of a neutron star can thus exceed a few hundred-thousand billion grams per cubic centimeter—a density several times that found inside the heaviest atomic nuclei. The extreme conditions prevailing in the interior of neutron stars are so far from those encountered in laboratory experiments that the properties of their interiors remain largely unknown. At about one km below the stellar surface, atomic nuclei are so compressed that they may adopt very unusual shapes, such as rods or slabs. These so-called nuclear pastas could play an important role in the neutron-star asteroseismology. Nuclear pastas could also affect the cooling of the star. The goal of this project is to study the properties of dense matter and the existence of these pasta phases using the nuclear energy density functional theory.
Promoteur/Supervisor : Prof. Chamel Nicolas
Email : nchamel@ulb.ac.be
Site Web/Web site : http://www.astro.ulb.ac.be/~chamel/
Centre de recherche/Research center : Institute of Astronomy and Astrophysics
Faculté/Faculty : Faculté des Sciences/Faculty of Sciences
Ecole doctorale/Graduate Colleges : Sciences/Science
Ecole doctorale thématique/Graduate School (French Only): Physique et Astrophysique (IFAC + FYQU + Quantum field therory, Strings and Gravity) (PANDA)



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