Planet Hunters TESS: findings from the first 2.5 years of people-powered planet hunting in TESS data
Monday
Abstract details
id
Planet Hunters TESS: findings from the first 2.5 years of people-powered planet hunting in TESS data
Date Submitted
2021-04-30 08:06:00
Nora
Eisner
University of Oxford
Science from TESS
Contributed
A. Nora Eisner (University of Oxford), B.Oscar Barragan (University of Oxford), C. Suzanne Aigrain (University of Oxford), D. Chris Lintott (University of Oxford), E. Belinda Nicholson (University of Oxford)
I will present results from the Planet Hunters TESS (PHT) project, which harnesses the power of citizen science to find transit events in the TESS data by engaging tens of thousands of volunteers. To date, PHT citizen scientists have classified all two-minute cadence TESS data up to sector 35 and discovered over 100 planet candidates that weren't previously known. Most are long-period planets, but we also identify a wide range of other interesting planet and stellar systems. Our results show that humans can outperform the automated detection pipelines for certain types of transits, especially single (long-period) transits, as well as aperiodic transits (circumbinary planets) and planets around rapidly rotating, active (young systems), or otherwise variable stars. I will give an overview of our detection and vetting process, and show how our findings complement the population of planets identified by automated algorithms. Finally, I will present our most recent discovery, a system of two planets around the bright star HD 152843, which has outstanding prospects for atmospheric characterisation.
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