Constraints on theories of galaxy formation from measurements of fluctuations in the CMB

Rebolo, R.; Beckman, J. E.; Watson, R.
Bibliographical reference

(Instituto de Astrofisica de Canarias and Comision Interministerial de Ciencia y Tecnologia, Summer School on Evolutionary Phenomena in Galaxies, Puerto de la Cruz, Spain, July 4-15, 1988) Astrophysics and Space Science (ISSN 0004-640X), vol. 157, no. 1-2, July 1989, p. 333-337.

Advertised on:
7
1989
Number of authors
3
IAC number of authors
0
Citations
2
Refereed citations
2
Description
Current observational constraints on anisotropies in the cosmic microwave background (CMB) and on the clustering of galaxies have considerably narrowed the range of acceptable models for galaxy formation. Observations of these anisotropies on intermediate and large angular scales provide the best constraint on the amplitude of very long wavelength density fluctuations. Results from the Tenerife CMB fluctuation experiment at intermediate angular scales (6 deg) are presented which, taken together with recently reported upper limits to fluctuations on small (arcmin) angular scales, constrain severely the spectral index of initial fluctuations in baryon dominated model universes. Constraints on adiabatic fluctuations in 'hot' and 'cold' dark matter models are also briefly discussed.