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Behrooz Malekolkalami

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId: 654654
Faculty: Faculty of Science
Address:
Phone: 09188711601

Research

Title
Time-dependent scalar fields as candidates for dark matter
Type
JournalPaper
Keywords
Dark Matter, Oscillatons
Year
2016
Journal PHYSICAL REVIEW D
DOI
Researchers Behrooz Malekolkalami ، Ali Mahmoodzadeh

Abstract

In this paper, we study some properties of what is called the oscillaton, a spherically symmetric object made of a real time-dependent scalar field. Using an exponential scalar potential instead of a quadratic one discussed in previous works, as a new choice, we investigate the oscillaton properties with this potential. Solving the differential equation system resulting from the Einstein-Klein-Gordon equations reveals the importance of the oscillatons as candidates for dark matter. Meanwhile, a simplification called the stationary limit procedure is also carried out.