On the inhomogeneity of dark matter and luminous objects induced by infinitely long cosmic strings

Abstract

view Abstract Citations (16) References (44) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On the Inhomogeneity of Dark Matter and Luminous Objects Induced by Infinitely Long Cosmic Strings Hara, Tetsuya ; Mahonen, Petri ; Miyoshi, Shigeru Abstract The inhomogeneity of cold dark matter due to the wake formed by an infinitely long straight cosmic string is investigated. The 1D motion of cold dark matter induced by infinitely long cosmic strings is solved analytically and numerically, and the homogeneous MW background radiation and the thickness of the wake are also estimated. The mass of the fragments within the wake is estimated from the thickness. The possibility of explaining the distribution and the change of number density of objects such as the Lyman-alpha clouds through such a dark matter fragmentation and clustering is discussed. The formation of luminous objects is also studied. The reionization of the universe and the formation of globular clusters, galaxies, and objects in the voids are addressed as well. Publication: The Astrophysical Journal Pub Date: July 1993 DOI: 10.1086/172897 Bibcode: 1993ApJ...412...22H Keywords: Computational Astrophysics; Dark Matter; Inhomogeneity; Luminosity; String Theory; Equations Of Motion; Lyman Alpha Radiation; Relic Radiation; Astrophysics; COSMOLOGY: THEORY; COSMOLOGY: DARK MATTER; COSMIC STRINGS; COSMOLOGY: LARGE-SCALE STRUCTURE OF UNIVERSE full text sources ADS |