Detection of CDM Substructure

Details Detection of CDM Substructure Detection of CDM Substructure

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19916120d&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #161.20; Bulletin of the American Astronomical Society, Vol. 34, p.575

Astronomy and Astrophysics

Astronomy

Scientific paper

Part of the purported crisis afflicting the Cold Dark Matter scenario is the apparent discrepancy between the number of satellite halos predicted by CDM simulations and the observed number of Galactic satellite galaxies. We devise a method to measure the abundance of satellite halos in lens galaxies, and apply our method to a sample of 9 lensed systems. We find that substructure comprises several percent of the mass of typical lens galaxies, in excellent agreement with results of CDM simulations. This measurement confirms a generic prediction of CDM models, and may obviate the need to invoke alternatives to CDM, like warm dark matter or self-interacting dark matter. This work was supported by NASA and the Smithsonian Institution.

Affiliated with

Also associated with

No associations

Rating

Detection of CDM Substructure does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Detection of CDM Substructure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of CDM Substructure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1238193