Line-of-sight effects in gravitational lensing

Session

Sub-haloes and interlopers

8 juin 2022, 10:00

Salle des doctorants (Montpellier, France)

Présidents de session

Sub-haloes and interlopers: Talks

• Il n'a pas de président de session pour ce bloc

Sub-haloes and interlopers: Formal discussion

• Giulia Despali (University of Heidelberg)

8. Subhalos Overview

Prof. Simona Vegetti

08/06/2022 10:00

Talk

TBD

2. Detecting low mass haloes with lensed arcs: predictions

Giulia Despali (University of Heidelberg)

08/06/2022 10:40

Talk

Strong gravitational lensing is one of the most accurate methods to measure the mass of galaxies and haloes and one of the most promising to investigate the nature of dark matter. It allows us to probe one of the key signatures of warm dark matter models: the lack of small-mass dark clumps with respect to CDM. Low-mass haloes and subhaloes can be detected through their effect on the surface...

3. Constraining Dark Matter and Shear With Strong Gravitational Lensing

James Nightingale (Durham University)

08/06/2022 11:20

Talk

The cold dark matter (CDM) paradigm makes a prediction of ubiquitous clumps of DM with masses <10^9Msun, which do not form in alternative models of warm or self-interacting DM. Using galaxy-scale strong gravitational lenses, the presence (or lack thereof) of these DM clumps can be inferred by looking for distortions in the lensed source’s emission. I present results scanning for DM clumps in...