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All-Sky Automated Survey for Supernovae: Big Science with Small Telescopes

April 20, 2023

When: April 20, 2023 3:30PM
Where: LCO Downstairs Conference Room

Krzysztof Stanek

The Ohio State University

Until just a few years ago, only human eyes monitored the entire night sky. We changed that with our​``All-Sky Automated Survey for Supernovae'' (ASAS-SN), which automatically surveys the entire visible sky every night, for the first time in human history. ASAS-SN is discovering large numbers of bright transients, including supernovae, quasar flares, tidal disruption events, Galactic novae, and variable stars, that in turn trigger additional observations across the electromagnetic spectrum and beyond.

I will discuss some of the most interesting ASAS-SN discoveries, as well as the various ways in which we make the data public. The scientific value and public utility of ASAS-SN data are growing rapidly, and I will discuss the plans for that to continue and expand in the future.

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Krzysztof Stanek

A member of the faculty since 2005, Prof. Stanek is an observational astrophysicist working on massive stars, supernovae, gamma-ray bursts, and the cosmological distance scale. Among his research accomplishments, Prof. Stanek and collaborators showed conclusively that gamma-ray bursts are directly linked to the deaths of massive stars and pioneered the use of red clump stars as a distance indicator in the Galaxy and beyond. An overarching theme of Prof. Stanek’s work is a focus on time-domain astronomy, variability, and transients. With Prof. Kochanek and other collaborators, he is leading the ASAS-SN project to discover supernovae in the local universe using a dedicated all-sky automated survey. Prof. Stanek was named a University Distinguished Scholar in 2018, and he shared the 2020 AAS Beatrice M. Tinsley Prize with Prof. Chris Kochanek for their work on ASAS-SN.

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