Thermodynamic equilibrium conditions for mass varying particle structures

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

bernardini, ae (Autor) Outra; bertolami, o (Autor) FCUP

Revista

Título: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Vol. 684

Páginas: 96-100

ISSN: 0370-2693

Editora: Elsevier

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 11 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-003-95P

DOI: 10.1016/j.physletb.2010.01.007

Abstract (EN): The thermodynamic equilibrium conditions for compact structures composed by mass varying particles are discussed assuming that the so-called dynamical mass behaves like an additional extensive thermodynamic degree of freedom. It then follows that, such weakly interacting massive particles can form clusters of non-baryonic matter or even astrophysical objects that, at cosmological scales, are held together by gravity and by the attractive force mediated by a background scalar field. The equilibrium conditions for resultant static, spherically symmetric objects of uniform energy density are derived for the case where the particles share essential features with the mass varying mechanism in the context of cosmological scenarios. Physical Solutions which result in stable astrophysical lumps are obtained and discussed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5