# Evidence that 1I/2017 U1 (Oumuamua) was composed of molecular hydrogen ice

@article{Seligman2020EvidenceT1,
title={Evidence that 1I/2017 U1 (Oumuamua) was composed of molecular hydrogen ice},
author={Darryl Seligman and G. Laughlin},
journal={arXiv: Earth and Planetary Astrophysics},
year={2020}
}
• Published 2020
• Physics
• arXiv: Earth and Planetary Astrophysics
`Oumuamua (I1 2017) was the first macroscopic ($l\sim100\,{\rm m}$) body observed to traverse the inner solar system on an unbound hyperbolic orbit. Its light curve displayed strong periodic variation, and it showed no hint of a coma or emission from molecular outgassing. Astrometric measurements indicate that 'Oumuamua experienced non-gravitational acceleration on its outbound trajectory, but energy balance arguments indicate this acceleration is inconsistent with a water ice sublimation… Expand

#### References

SHOWING 1-10 OF 39 REFERENCES