# Hoang 2020: Destruction of Molecular Hydrogen Ice and Implications for 1I/2017 U1 ('Oumuamua)

> Thiem Hoang, Abraham Loeb, 2020. 3 records on Mysteries Department cite it. The main objection to the hydrogen-iceberg reading.

Source: https://mysteriesdept.com/sources/SRC0CSKB7FP0MWG/destruction-of-molecular-hydrogen-ice-and-implications-for  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[1I/'Oumuamua](https://mysteriesdept.com/mysteries/oumuamua)Hoang 2020

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# Destruction of Molecular Hydrogen Ice and Implications for 1I/2017 U1 ('Oumuamua)

Thiem Hoang, Abraham Loeb, 2020. _The Astrophysical Journal Letters_.

Argues that starlight would sublimate a hydrogen-ice body of 'Oumuamua's size in under ten million years, that collisional heating in molecular clouds would destroy it before escape, and that hydrogen-rich grains are unlikely to grow in dense environments. ApJL 899, L23.

**1I/'Oumuamua** Articledoi: **[10.3847/2041-8213/abab0c](https://doi.org/10.3847/2041-8213/abab0c)** Checked against the original0

## What it's used for here

The main objection to the hydrogen-iceberg reading.

## Cited by on this site 3 records

[Starlight and collisions would destroy such a body before it could arrive.](https://mysteriesdept.com/mysteries/oumuamua/evidence/EVD0CSKCAWG6K3Z/starlight-and-collisions-would-destroy-such-a-body-before-it)

Evidence

EVD

[Starlight would sublimate such a body in under ten million years, and collisional heating would destroy it in…](https://mysteriesdept.com/mysteries/oumuamua/evidence/EVD0CSKC32G0KQN/starlight-would-sublimate-such-a-body-in-under-ten-million)

Evidence

EVD

[1I/'Oumuamua](https://mysteriesdept.com/mysteries/oumuamua)

The mystery article

MYS

## Cite it

```
Hoang, T., & Loeb, A. (2020). Destruction of Molecular Hydrogen Ice and Implications for 1I/2017 U1 ('Oumuamua). The Astrophysical Journal Letters. https://doi.org/10.3847/2041-8213/abab0c
```

[Read it free at doi.org](https://doi.org/10.3847/2041-8213/abab0c)

Key

**SRC** 0CSKB7FP0MWG

Kind

Journal article

Rights

The publisher's

Kept

27 Oct 2026, for editors

Checked

Against the published article

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

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