# Oscillations in Gas-grain Astrochemical Kinetics

Source: [Oscillations in Gas-grain Astrochemical Kinetics](<https://www.sota2.com/research/paper/68fa44231e209131ce90f1cd>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-27T04:21:12.031Z

Authors: Gwena\\"elle Dufour, Steven B. Charnley, Johan E. Lindberg

Published: 2023-04-27T17:41:38.000Z

## Abstract

We have studied gas-grain chemical models of interstellar clouds to search for nonlinear dynamical evolution. A prescription is given for producing oscillatory solutions when a bistable solution exists in the gas-phase chemistry and we demonstrate the existence of limit cycle and relaxation oscillation solutions. As the autocatalytic chemical processes underlying these solutions are common to all models of interstellar chemistry, the occurrence of these solutions should be widespread. We briefly discuss the implications for interpreting molecular cloud composition with time-dependent models and some future directions for this approach.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2304.14428>)

[PDF](<https://arxiv.org/pdf/2304.14428.pdf>)