Astro Seminar - The Southern Stellar Stream Spectroscopic Survey (S5): Overview and Latest Science Results

Ting Li (Princeton University & Carnegie Observatories)

Oct 13, 2020 3:30 PM
Astro Seminar

Title: The Southern Stellar Stream Spectroscopic Survey: Overview and Latest Science Results


The Southern Stellar Stream Spectroscopic Survey (S5) is an ongoing spectroscopic program that maps the newly discovered stellar streams with the fiber-fed AAOmega spectrograph on the Anglo-Australian Telescope (AAT). S5 is the first systematic program pursuing a complete census of known streams in the Southern Hemisphere, providing a uniquely powerful sample for understanding the building blocks of the Milky Way's stellar halo, the progenitors and formation of stellar streams, the mass and shape of the Milky Way's halo, and ultimately the nature of dark matter. The survey started in Summer 2018 and have mapped 14 streams with ~45 nights on AAT. In this talk, I will give a brief overview of the current status of the program, highlighting the latest science results from the survey, and end the talk with the public data release plan.

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