Zapraszamy na seminarium Instytutu Obserwatorium Astronomiczne. Seminaria odbywają się co tydzień, w czwartki o godz. 13:00 w budynku Obserwatorium Astronomicznego UAM przy ul. Słonecznej 36.
Data: 13 kwietnia 2023
Referat wygłosi: dr Agata Rożek (University of Edinburg, Scotland)
Język wykładu: jęz. angielski
Planetary defence in action: the impact of DART
On 26th September 2022 NASA conducted the first asteroid deflection test using the DART spacecraft. The probe hit a small moon Dimorphos orbiting a near-Earth asteroid Didymos. One of the principal mission aims was to change orbital period of Dimorphos in the asteroid system in a measurable way, and it was a smashing success. The collision aftermath was closely monitored from space and ground, including by the observers from Edinburgh’s Institute for Astronomy. We used the Danish 1.54m telescope in Chile, the VLT, and a brand-new telescope in Kenya. The global observing campaign was designed for determining the period change and monitoring post-impact ejecta. The orbital change was measured to be -33±1 min, and confirmed with two different observational methods: the optical observations and Doppler-delay radar imaging. I’ll present an overview of the DART mission and Edinburgh’s contribution to the Didymos/Dimorphos observing campaign.