**CANCELLED** Astro Seminar - "Probing the particle nature of dark matter with strong gravitational lensing"

Yashar Hezaveh (UdeM)

Date: Mar 10, 2020 3:30 PM
Location: Boardroom (room 105), Rutherford Physics Building
Astro Seminar

Title: Probing the particle nature of dark matter with strong gravitational lensing

Abstract:

The nature of dark matter is one of the most important outstanding questions in modern cosmology and astrophysics. Uncovering the properties of the dark matter particle could result in significant leaps in our understanding of fundamental physics and impact numerous astrophysical models. It is well understood that the microphysics of the dark matter particle impacts its clustering properties on different scales. The most widely accepted dark matter model, cold dark matter, has had tremendous success explaining the large-scale structure of the universe. However, it has faced many challenges for its predictions of the distribution of matter on small, sub-galactic scales, with some observations seemingly favoring a warm dark matter alternative. A definitive answer to this question can only be achieved by mapping the distribution of dark matter on small scales with a purely gravitational probe. Strong gravitational lensing is the only probe capable of doing this at cosmological distances. In this talk, I will discuss how the discovery of a new population of strong gravitational lenses, a new observatory, ALMA, and new advances in analysis methods are allowing us to map the distribution of dark matter on small scales with high precision. In the coming years, thousands of new lenses from large surveys (e.g., LSST), existing and new facilities (e.g., ALMA, JWST, TMT), and new analysis methods (machine learning) will transform this field, allowing us to understand the small-scale behavior of dark matter with unprecedented accuracy and precision, opening a new window for testing dark matter models in a previously inaccessible regime.




Upcoming Seminars

MSI and Astro seminars are held on Tuesdays at 3:30 pm on alternating weeks during the fall and winter semesters.

Astro Seminars: feature speakers who discuss topics in astronomy, astrophysics and cosmology. Seminars will be held in the R.E. Bell Conference Room (room 103) in the Rutherford Physics Building.

MSI Seminars: feature speakers who discuss topics in astrophysics, planetary science, atmospheric science and astrobiology. Most seminars are held in the MSI conference room at 3550 University. Some seminars are held in the R.E. Bell Conference Room (room 103) in the Rutherford Physics Building (to accommodate larger audiences).



There are no upcoming seminars planned at this time.





Past Seminars

MSI Seminar

Jennifer Eigenbrode (NASA/GSFC)

Date: Apr 28, 2020 3:30 PM
Location: MSI Conference Room (3550 University)
MSI Seminar
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Astro Seminar

Alicia Rouco Escorial (Northwestern University)

Date: Apr 21, 2020 3:30 PM
Location: Boardroom (room 105), Rutherford Physics Building
Astro Seminar
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**CANCELLED** MSI Seminar

Jess McIver (UBC)

Date: Apr 14, 2020 3:30 PM
Location: MSI Conference Room (3550 University)
MSI Seminar
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**CANCELLED** Astro Seminar

Blakesley Burkhart (Rutgers University)

Date: Apr 7, 2020 3:30 PM
Location: Boardroom (room 105), Rutherford Physics Building
Astro Seminar
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**CANCELLED** MSI Seminar

Adam Showman (University of Arizona)

Date: Mar 31, 2020 3:30 PM
Location: MSI Conference Room (3550 University)
MSI Seminar
Read More ⇒