Loading...
Please wait, while we are loading the content...
Similar Documents
Cosmic strings
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bennett, David P. |
| Copyright Year | 1988 |
| Description | Cosmic strings are linear topological defects which are predicted by some grand unified theories to form during a spontaneous symmetry breaking phase transition in the early universe. They are the basis for the only theories of galaxy formation aside from quantum fluctuations from inflation based on fundamental physics. In contrast to inflation, they can also be observed directly through gravitational lensing and their characterisitc microwave background anisotropy. It was recently discovered that details of cosmic string evolution are very differnt from the so-called standard model that was assumed in most of the string-induced galaxy formation calculations. Therefore, the details of galaxy formation in the cosmic string models are currently very uncertain. |
| File Size | 834467 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890002242 |
| Archival Resource Key | ark:/13960/t1bk68990 |
| Language | English |
| Publisher Date | 1988-07-01 |
| Access Restriction | Open |
| Subject Keyword | Thermodynamics And Statistical Physics String Theory Gravitational Lenses Galactic Evolution Universe Topology Grand Unified Theory Standard Model Particle Physics Anisotropy Cosmology Background Radiation Inflating Microwave Emission Symmetry Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
