4.6 Article

Do arcs require flat halo cusps?

Journal

ASTRONOMY & ASTROPHYSICS
Volume 418, Issue 2, Pages 413-418

Publisher

EDP SCIENCES S A
DOI: 10.1051/0004-6361:20035763

Keywords

gravitational lensing; galaxies : clusters : general; cosmology : dark matter

Ask authors/readers for more resources

It was recently claimed that several galaxy clusters containing radial and tangential gravitational arcs and having a measured velocity-dispersion profile for the brightest cluster galaxy had to have central density profiles considerably flatter than those found in CDM cluster simulations. Using a simple analytic mass model, we confirm this result or axially symmetric mass distributions. However, we demonstrate that steep density profiles are well in agreement with the cluster requiring the flattest axially symmetric profile once even small deviations from axial symmetry are introduced.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available