Title: The Compound Lens SDSSJ0946+1006 and its Dark Substructure

Abstract: The physics of dark matter particles is elusive. In the LCDM paradigm, the gravity they feel when caught within the well of a forming massive galaxy is sufficiently attractive to form clumps. However, until substantial enough in baryons to become seeable electromagnetically as satellite dwarf galaxies, these clumpy substructures can only be observed gravitationally. I will present SDSSJ0946+1006, the only known galaxy-scale strong lensing system to contain three lensed galaxies across different redshifts, and demonstrate the capability to measure the characteristics of a reported dark substructure in its foreground, in a system already uniquely able to constrain the nature of dark energy…

Meeting Recording:
https://port-ac-uk.zoom.us/rec/share/u02m01dobxCTWCvGfHm7PuZIFhUnrsiYaU1eAEm9julsnL1Y0o0MkDR_dsOjqC2S.u6q2uAWOIGDAn3D-