LENSING PROBES OF THE COLD DARK MATTER PARADIGM (IPC)

Seminar

QUEST Center event

No

Speaker

Priyamvada Natarajan, Yale University

Date

04/04/2022 - 20:00 - 19:00Add to Calendar 2022-04-04 19:00:00 2022-04-04 20:00:00 LENSING PROBES OF THE COLD DARK MATTER PARADIGM (IPC) Lecture in the IPC series Priyamvada Natarajan, Yale University ZOOM LINK LENSING PROBES OF THE COLD DARK MATTER PARADIGM Abstract Gravitational lensing by clusters of galaxies offers a powerful probe of theories of structure formation. The standard paradigm of a cold dark matter dominated Universe provides concrete predictions for small-scale substructure properties including their abundance, radial distribution and lensing efficiency. I present recent exciting result that confront observationally inferred quantities that map dark matter on small-scales with predictions of cosmological simulations. The power and prospects for stress-testing the cold dark matter paradigm with lensing data will be discussed. With the upcoming data deluge new stringent tests of dark matter will become feasible and viable. ZOOM: Meeting ID: 945 0584 3666, Passcode: 750035 המחלקה לפיזיקה physics.dept@mail.biu.ac.il Asia/Jerusalem public

Place

ZOOM: Meeting ID: 945 0584 3666, Passcode: 750035

Abstract

Lecture in the IPC series

Priyamvada Natarajan, Yale University

ZOOM LINK

LENSING PROBES OF THE COLD DARK MATTER PARADIGM

Abstract

Gravitational lensing by clusters of galaxies offers a powerful probe of theories of structure formation. The standard paradigm of a cold dark matter dominated Universe provides concrete predictions for small-scale substructure properties including their abundance, radial distribution and lensing efficiency. I present recent exciting result that confront observationally inferred quantities that map dark matter on small-scales with predictions of cosmological simulations. The power and prospects for stress-testing the cold dark matter paradigm with lensing data will be discussed. With the upcoming data deluge new stringent tests of dark matter will become feasible and viable.