Detectability of Thermal Emission from Sub-Relativistic Objects release_mn75slly3rerjclpysu4lz5hgu

by Thiem Hoang, Abraham Loeb

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We calculate the surface temperature and the resulting brightness of sub-relativistic objects moving through the Solar system due to collisional heating by gas and radiative heating by solar radiation. The thermal emission from objects of size ≳ 100 m and speed of ≳ 0.1c, can be detected by the upcoming James Webb Space Telescope out to a distance of ∼ 100 au. Future surveys could therefore set interesting limits on the abundance of fast-moving interstellar objects or spacecraft.
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Type  article
Stage   submitted
Date   2020-07-09
Version   v1
Language   en ?
arXiv  2007.04892v1
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