4 citations
Showing astro-phShow all
3 papers · 1 filter
astro-ph2008★ 32 cited
Cosmic Shear from Scalar-Induced Gravitational Waves
Devdeep Sarkar, Paolo Serra, Asantha Cooray +2
Weak gravitational lensing by foreground density perturbations generates a gradient mode in the shear of background images. In contrast, cosmological tensor perturbations induce a…
astro-ph2005★ 1 cited
Mass distribution of spiral galaxies from characteristics of spiral structure: Constraints on galaxy formation models
Marc S. Seigar, Aaron J. Barth, James Bullock +1
Recently, it has been shown that a correlation exists between the rate of shear and the spiral arm pitch angle in disk galaxies. The rate of shear depends upon the shape of the rot…
astro-ph2003
X-Ray Constraints on Dark Matter in Galaxy Clusters and Elliptical Galaxies: A View from Chandra and XMM
David A. Buote
I review constraints on the radial density profiles and ellipticities of the dark matter obtained from recent X-ray observations with Chandra and XMM of elliptical galaxies and gal…