Cosmic background temperature anisotropy in a minimal isocurvature model for galaxy formation

Journal Article · Wed Apr 01 04:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/184863· OSTI ID:5929878

Peebles, P J.E.

If the dominant components of the universe were radiation and baryons, and the primeval baryon distribution had a roughly flat spectrum normalized to galaxy clustering on scales of about 20 Mpc, and young stars were able to keep the bulk of the matter ionized at redshifts z greater than about 20, then several encouraging results would follow. The first generation that starts to form when Compton drag becomes unimportant would have masses and radii comparable to galaxies. Mass fluctuations on scales of about 200 Mpc could be relatively large and so perhaps favorable for development of large-scale structure. And the residual fluctuations in the background temperature would have coherence length of about to 3-5 deg and standard deviation of about 0.00001, close to but below the observational bounds. 18 references.

• Research Organization: Princeton Univ., NJ
• OSTI ID: 5929878
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 315; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
640106 -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
BARYONS
COSMOLOGICAL MODELS
COSMOLOGY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GALACTIC EVOLUTION
GALAXY CLUSTERS
HADRONS
MASS
MATHEMATICAL MODELS
MONTE CARLO METHOD
NONLUMINOUS MATTER
PERTURBATION THEORY
RELATIVISTIC RANGE
UNIVERSE