Phase space distribution of halo particles and detection of WIMPS

Bibcode
1991AIPC..222..463R
DOI
10.1063/1.40416
Ryu, Dongsu; Perez, Armando
Bibliographical reference

In: After the first three minutes; Proceedings of the 1st Astrophysics Workshop, Univ. of Maryland, College Park, Oct. 15-17, 1990 (A93-23605 07-90), p. 463-466.

Advertised on:
4
1991
Number of authors
2
IAC number of authors
0
Citations
0
Refereed citations
0
Description
We calculate the velocity distribution of halo particles using realistic models for the density profiles of the Galactic disk, spheroid, and halo components. We get the resulting velocity distribution, which is different from the Maxwellian distribution of isothermal halo. We investigate the consequences concerning the time averaged count rate and the amplitude of the annual modulation in WIMPS detection experiments. Compared to the previous estimate based on the Maxwellian distribution, the time averaged count rate is up to 40 percent larger. On the other hand, the amplitude of the annual modulation is up to a factor of two larger.
Type
Non-refereed
Milky Way Galaxy
Relativity

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