Cosmic string with a light massive neutrino

Journal Article · Mon Nov 02 04:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.2615· OSTI ID:7012398

Albrecht, A; Stebbins, A ^[1]

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1. NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Box 500, Batavia, Illinois 60510-0500 (United States)

We have estimated the power spectra of density fluctuations produced by cosmic strings with neutrino hot dark matter (HDM). Normalizing at 8[ital h][sup [minus]1] Mpc [where [ital h]=[ital H][sub 0]/(100 km/sec Mpc) and [ital H][sub 0] is the Hubble constant] we find that the spectrum has more power on small ([approx lt]10[ital h][sup [minus]2] Mpc) scales than HDM+ inflation, less than cold dark matter (CDM) + inflation, and significantly less than CDM + strings. With HDM, large wakes ([similar to]20[ital h][sup [minus]2] Mpc) give significant contribution to the power on the galaxy scale and may give rise to large sheets of galaxies.

• OSTI ID: 7012398
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:18; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

662110* -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662430 -- Properties of Leptons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPOSITE MODELS
COSMOLOGY
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
FLUCTUATIONS
GALAXIES
LEPTONS
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATTER
NEUTRINOS
NONLUMINOUS MATTER
PARAMETRIC ANALYSIS
PARTICLE MODELS
QUARK MODEL
STRING MODELS
VARIATIONS