112 citations · 243 across the 5 of their papers we have counts for
5 papers
On the Late-Time Evolution of Velocity-Dependent Self-Interacting Dark Matter Halos
Sophia Gad-Nasr, Kimberly K. Boddy, Manoj Kaplinghat +2
We study the evolution of isolated self-interacting dark matter (SIDM) halos that undergo gravothermal collapse and are driven deep into the short-mean-free-path regime. We assume…
Universal gravothermal evolution of isolated self-interacting dark matter halos for velocity-dependent cross sections
Nadav Joseph Outmezguine, Kimberly K. Boddy, Sophia Gad-Nasr +2
We study the evolution of isolated self-interacting dark matter (SIDM) halos using spherically-symmetric gravothermal equations allowing for the scattering cross section to be velo…
A Stringent Upper Limit on Dark Matter Self-Interaction Cross Section from Cluster Strong Lensing
Kevin E. Andrade, Jackson Fuson, Sophia Gad-Nasr +4
We analyze strongly lensed images in 8 galaxy clusters to measure their dark matter density profiles in the radial region between 10 kpc and 150 kpc, and use this to constrain the…
An unexpected high concentration for the dark substructure in the gravitational lens SDSSJ0946+1006
Quinn E. Minor, Sophia Gad-Nasr, Manoj Kaplinghat +1
The presence of an invisible substructure has previously been detected in the gravitational lens galaxy SDSSJ0946+1006 through its perturbation of the lensed images. Using flexible…
Velocity-dependent Self-interacting Dark Matter from Groups and Clusters of Galaxies
Laura Sagunski, Sophia Gad-Nasr, Brian Colquhoun +2
We probe the self-interactions of dark matter using observational data of relaxed galaxy groups and clusters. Our analysis uses the Jeans formalism and considers a wider range of s…