Inflation, large scale structure, and COBE
Abstract
The predictions of the inflationary cosmology are compared with the expected sensitivity of the COBE satellie. It is noted that detection of large angle temperature fluctuations in the usual biased cold dark matter version of inflation requires COBE to reduce systematic errors to the level of the detector sensitivity. However, the difficulty the usual biased cold dark matter scenario has in fitting recent large scale structure observations leads us to consider a variety of possible modifications of inflation. These changes generally increase the amplitude of the temperature fluctuations to a more detectable level, although the amount of increase depends on the specific modification. Thus we would expect that COBE will easily see temperature fluctuations in a realistic model of large scale structure formation based on inflation.
- Publication:
-
After the first three minutes
- Pub Date:
- April 1991
- DOI:
- 10.1063/1.40461
- Bibcode:
- 1991AIPC..222..119S
- Keywords:
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- Cosmic Background Explorer Satellite;
- Cosmology;
- Inflating;
- Universe;
- Astronomical Models;
- Dark Matter;
- Astrophysics;
- 98.80.Bp;
- 98.70.Vc;
- 95.85.Bh;
- 98.80.Es;
- Origin and formation of the Universe;
- Background radiations;
- Radio microwave;
- Observational cosmology