Mathematics – Logic
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21530003f&link_type=abstract
American Astronomical Society, AAS Meeting #215, #300.03; Bulletin of the American Astronomical Society, Vol. 42, p.296
Mathematics
Logic
Scientific paper
In the modern framework of Cold Dark Matter (CDM), galaxies form hierarchically through mergers with smaller satellite galaxies. High resolution N-body simulations generically predict a multitude of such satellites surrounding both local and distant galaxies. The number of these subhalos, as a function of mass, is sensitive to the properties of the dark matter particle, and therefore is an enticing probe of CDM. Observationally, measurements of the subhalo mass function are extremely difficult due to the faint, or even non-luminous, nature of small mass constituents of the population. Fortunately, gravitational lensing provides a unique tool for finding small scale structure. By using multi-wavelength measurements of flux ratios of lensed quasars, we can study lensing effects on many scales, allowing a direct study of substructure properties. On-going work has revealed that this technique can strongly constrain the masses of dark matter subhalos, permitting tests of CDM at cosmological distances.
Fadely Ross
Keeton Charles R.
No associations
LandOfFree
Testing CDM with Substructure Gravitational Lensing 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 Testing CDM with Substructure Gravitational Lensing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing CDM with Substructure Gravitational Lensing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-961085