Seminar:- The New Frontier of Interstellar Objects
Over the past decade, the first four interstellar objects were discovered. They include two interstellar meteors, IM1 and IM2, detected on 2014.01.08 and 2017.03.09, `Oumuamua detected on 2017.10.19, and Borisov detected on 2019.08.29. Among these four, the first three appeared anomalous relative to known solar-system rocks whereas the fourth appeared as a familiar comet. IM1 and IM2 exhibited the highest material strength among all meteorites in the CNEOS catalog of NASA, `Oumuamua exhibited a flat shape and non-gravitational acceleration with no detectable cometary evaporation. In June 2023 the speaker and his team recovered spherules from IM1. He will discuss the findings as well as the possible technological origin for anomalous interstellar objects.
頻道：Zoom ID: 975-6612-1955
講者：Prof. Abraham ‘Avi’ LOEB (Harvard University)