The structure of dark matter halos: self-similar models versus N-body simulations

Details The structure of dark matter halos: self-similar models versus N-body simulations The structure of dark matter halos: self-similar models versus N-body simulations

2006-08-29

arxiv.org/abs/astro-ph/0608637v1

Astronomy and Astrophysics

Astrophysics

3 pages, 3 figures

Scientific paper

We derive the density profile of cold dark matter halos using a self-similar accretion model. We show that if the clumpiness of the infalling matter is taken into account, then the inner density slope, d(log{rho})/d(log{r}), is close to -1. Compared with the density profiles predicted by different numerical simulations, we find that outside ~0.1% of the virial radius, our solutions agree best with the fitting formula proposed by Navarro et al. (2004), d(ln{rho})/d(ln{r})=-2(r/R)^0.17, where R is a characteristic radius, inside which the density profile becomes shallower than isothermal.

Affiliated with

Also associated with

No associations

Rating

The structure of dark matter halos: self-similar models versus N-body simulations 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 The structure of dark matter halos: self-similar models versus N-body simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The structure of dark matter halos: self-similar models versus N-body simulations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-74827