The SDAA banquet is scheduled for February 20th from 7:00 PM to 9:00 PM and we’d love for you to join us! Due to the ongoing Covid restrictions, we’ll be holding the event via Zoom, but we’re still going to offer dinner, a great guest speaker, and our very own Mike Chasin as Master of …
Speaker: Dr. Xiaohui Fan – Steward Observatory Topic: Dark Energy Spectroscopic Instrument (DESI) Dr. Fan is an observational cosmologist. Answering questions such as: When did the first luminous objects appearin the Universe? How did the first generation galaxies & quasars heat up the intergalactic gas, re-ionize the Universeand end the cosmic dark ages with facilities …
Speaker: Dr. Daniel Apai – Steward Observatory Topic: Exoplanets / Astrobiology Dr. Daniel Apai is a recent recipient of NASA’s ICAR Astrobiology grant. This is an inaugural effort focusing on the challenging questions in astrobiology. Daniel’s research focuses on exoplanets, with a particular emphasis on habitable planets and planetary systems. Heleads large programs to understand …
Speaker: Jimmy Lilly – Steward Observatory Topic: Identifying Prestellar Cores in Molecular Clouds Jimmy Lilly was a 2019-2020 Lucas Scholarship recipient and majored in Astronomy / Physics. He graduated in May 2020. He works with Yancy Shirley from the Department of Astronomy on “Characterizing Physical Properties Associated with Hierarchical Structure in Star-Forming Regions.” You can …
Speaker: Maria Galloway-Sprietsma – Steward Observatory Topic: Pulsar Timing Maria Galloway-Sprietsma is a Lucas Scholarship recipient 2020-2021. She is working with Dr. Yancy Shirley, Steward Observatory on a study of deuterated ammonia (NH2D) in star-forming region Cepheus L1251. They hope to explore the possibilities of using deuterated ammonia as a dense gas tracer, and believe …
SDAA YouTube Live Stream EventMonday, December 21 – 17:00-18:00Hosted by Gary Hawkins & Dave Decker The Great Conjunction It has been almost 400 years since Jupiter and Saturn were so close to each other, and approximately 800 years since the phenomenon takes place at night, this will make it visible in almost every part of …
Dr. Alex Ji: The First Stars Dr. Alex Ji is a postdoctoral fellow at the Carnegie Observatories. Alex is a near-field cosmologist, studying nearby stars and galaxies to understand the first stars and galaxies, the origin of the elements, and the history of the Milky Way. Alex’s main lockdown activity has been eating Trader Joe’s …
Speaker: Ryan Rubenzahl – Caltech Topic: Measuring the Speed of Stars More Precisely Than Your Car’s Speedometer The “doppler method” of detecting planets orbiting other stars requires precise measurements of the speeds of those distant stars. If we can see a star oscillating towards and away from us, we can infer that an unseen planet …
Speaker: Mia de Los Reyes Topic: The Loneliest Galaxies in the Universe Most of the matter in the universe is located in long and thin structures called “cosmic filaments” that stretch across the universe in web-like formations. However, some galaxies live in the much emptier spaces between cosmic filaments, called cosmic voids. By comparing the …
Speaker: Steve Hallmann, SDAA Topic: Dark Matter and Dark Energy Steve Hallman updates SDAA on the latest theories for dark matter and dark energy.