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OCA General Meeting
Friday May 12th 2017, 7:30 PM
Chapman University
Free and open to public more

A Journey Back in Time to the First Stars

I will provide an introduction to stars, including the Sun, and describe how they are responsible for producing nearly all of the chemical elements in the universe today. Current theories, though, predict that the first stars, which formed 13 billion years ago, may have been very different from those being born now. I will explain how the amount of heavy elements in a star can serve as a clock indicating its time of birth, and then describe the results of recent searches for primeval stars in both the Milky Way and nearby dwarf galaxies.


Josh Simon

I grew up in Ann Arbor, MI, and caught the astronomy bug early - my aunt gave me a small telescope to look at Halley's comet in 1986. When it came time for college, I decided to head west and attend Stanford, where I majored in physics. I then crossed the Bay for graduate school at UC Berkeley and finished my PhD in astronomy there in 2005. I was fortunate that California has lots of opportunities for astronomers, so after completing a postdoctoral fellowship at Caltech I moved to Carnegie Observatories, a nonprofit research institute also in Pasadena, where I am now on the permanent staff. My research interests in astronomy are fairly broad, covering almost anything that goes on in nearby galaxies, ranging from dark matter to supernova explosions. I currently live in Sherman Oaks with my wife and two sons.


"What's Up?" in this month will be presented by Steve Condrey

Pre-meeting Slide Show (~2 MB)
Club Announcements (~2 MB)

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