Скачать или смотреть Arushi Nath | Citizen Science Approach to Planetary Defense and Exoplanet Characterization

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Arushi Nath | Citizen Science Approach to Planetary Defense and Exoplanet Characterization
Abstract: Astronomical data is expanding rapidly, with upcoming missions like the Vera Rubin Observatory, Ariel, and PLATO set to generate petabytes of data. Citizen scientists play a crucial role by providing continuous observations, validating findings, and developing open-source models to improve data quality and support long-term analysis.
One key application is planetary defense. Of the 1.3 million known asteroids, only a small fraction have detailed phase curves, limiting threat assessment. To address this, I developed algorithms that integrate sparse observations from space- and ground-based surveys with citizen science data, accelerating asteroid characterization. I applied this to the Didymos system, confirming its successful deflection in NASA’s DART mission.
A similar challenge exists in exoplanet research. Many planets remain undetected due to gravitational interactions with unseen companions, causing subtle Transit Timing Variations (TTVs). To analyze these, I generated large-scale N-body simulations. Combined with data from Kepler, TESS, and ExoClock, this approach refines orbital and physical parameters in multi-planet systems.

Bio: Arushi Nath is a Foresight Fellow, 2024 Masason scholar, and a two-time winner of Canada’s Top Young Scientist Award. She received the 2023 Young Astronomers Award from the Royal Astronomical Society of Canada for her contributions to citizen science. Her work in planetary defense supported NASA’s Double Asteroid Redirection Test (DART) mission, using a citizen science approach to analyze asteroid properties before and after impact. Her research has been published in Acta Astronautica and The Planetary Science Journal. She is now expanding her work into exoplanet characterization through Transit Timing Variations (TTVs).
https://www.linkedin.com/in/arushi-na...

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Timecodes
00:00 Introduction and Welcome
00:13 Citizen Science in Planetary Defense
00:46 Asteroid Detection and Risks
04:22 NASA's DART Mission
04:58 Arushi's Research and Observations
08:54 Combining Dense and Sparse Observations
11:25 Remote Observatory in Spain
12:31 Exploring Exoplanets
14:07 Transit Timing Variations (TTV)
15:42 Methodology and Results
21:40 Q&A Session
24:19 Closing Remarks