Dark Matter Note

1. Begining
The studies of dark matter started from the observation of spiral Galaxy in early 1930s. By looking at the speed distribution of Galaxy, people found out that the distribution does not correspond to the previous prediction based on Newton's law. F. Zwicky gave the indication of missing mass called "dark matter" which points out the non-luminous property.

2. Observational evidences
2.1 Gravitational lensing


2.2 Big bang necleosynthesis (BBN)

2.3 Cosmic microwave background radiation (CMB)
COBE
WMAP


3. The dark matter models and candidates
According to the phenomena of dark matter, it must have some properties:
1. stability
2. heavy

relic density
SUSY
Extra dimension
4. Dark matter detection
3.1 Direct detection
3.2 Indirect detection
PAMALA
CoGent