Corpus ID: 237485499

Erosion of Icy Interstellar Objects by Cosmic Rays and Implications for `Oumuamua

@inproceedings{Phan2021ErosionOI,
  title={Erosion of Icy Interstellar Objects by Cosmic Rays and Implications for `Oumuamua},
  author={Vo Hong Minh Phan and Thiem C. Hoang and Abraham Loeb},
  year={2021}
}
We study the destruction and modification of icy interstellar objects by cosmic rays and gas collisions. Using the cosmic-ray flux measured in the local interstellar medium as well as inferred from gammaray observations at the different galactocentric radii, we find that cosmic-ray erosion is significant for interstellar objects made of common types of ices. Interestingly, cosmic-ray heating might destroy icy interstellar objects very efficiently such that the initial size of an N2 fragment as… Expand
3 Citations

Figures from this paper

The New Astronomical Frontier of Interstellar Objects
The upcoming commencement of the Vera C. Rubin Observatory’s Legacy Survey of Space of Time (LSST) will greatly enhance the discovery rate of interstellar objects (ISOs). ‘Oumuamua and Borisov wereExpand
On the Possibility of an Artificial Origin for `Oumuamua
Science offers the privilege of following evidence, not prejudice. The first interstellar object discovered near Earth, `Oumuamua, showed half a dozen anomalies relative to comets or asteroids in theExpand
Research Programs Arising from 'Oumuamua Considered as an Alien Craft
The controversial hypothesis that ‘Oumuamua (1I/2017 U1) was an alien craft dominated by a solar sail is considered using known physics for the two possible cases: controlled and uncontrolled flight.Expand

References

Accepted for publication in New Astronomy, arXiv:2103.14032
  • 2021