June 14th, 2024 8:30pm
Astronomy Speaker: Dr. Emmanuel Schaan
Lecture Information
Dr. Emmanuel Schaan (SLAC National Accelerator Laboratory)
A Cosmic shadow theater: How galaxy silhouettes reveal their dark side
Abstract:
The afterglow from the Big Bang, the “cosmic microwave background”, acts as the backlight in a shadow theater where galaxies are the protagonists. The resulting galaxy shadows contain unique information about the invisible components of galaxies, such as their cold gas and dark matter, which hold clues to the nature of dark matter, dark energy, and the formation of galaxies. I will present some of the scientific efforts to reveal these galaxy silhouettes, using unprecedented cosmic microwave background experiments and galaxy surveys.
Emmanuel Schaan is a Staff Scientist at SLAC National Accelerator Laboratory. As a cosmologist, he studies the origin and evolution of the Universe, by analyzing data from large telescopes in the US, Chile and space. His work focuses on the cosmic microwave background, the earliest light visible after the Big Bang, and on the large-scale distribution of galaxies. Emmanuel grew up in Paris, France before moving to Princeton, NJ, Berkeley, CA and finally to Redwood City, CA. He loves astrophotography, tinkering, electronics and DIY projects.
Ticket Information
Tickets can be purchased at Eventbrite starting April 17, 2024 at Noon.
Join Friends of Lick Observatory (FoLO) and Get Tickets Early
If you’d like to purchase tickets as early as noon on April 10th, 2024, join our Friends of Lick Observatory (FoLO) program by March 1st, 2024. As a thank you for supporting the observatory, you’ll get special access to purchase tickets before they go on sale for the general public.
More information about tickets and pricing is available here.
Program Information
| 7:30 pm | Doors Open | Brief Telescope Visits |
| 8:30 pm | Science Talk, Lecture Hall | History Talk, Great Refractor Telescope Dome |
| 9:30 pm | Science Talk (repeated), Lecture Hall | Telescope Viewings |
| 10:30 pm | History Talk (repeated), Lecture Hall | Telescope Viewings |
| 1:00 am | Doors Close |
Gift shop is open from 7:30pm until 11:30pm.
More general information about the event is available at Evening with the Stars.