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Updated: Dec 22, 2025

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Published on: April 8, 2020

The Molecular Cloud Lifecycle.

Mélanie Chevance¹, J M Diederik Kruijssen¹, Enrique Vazquez-Semadeni²

¹1Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstraße 12-14, 69120 Heidelberg, Germany.

Space Science Reviews

|May 8, 2020

Summary

This summary is machine-generated.

Giant molecular clouds (GMCs) form stars and shape galaxies. Their evolution, influenced by galactic conditions and stellar feedback, drives galaxy-wide matter cycling and evolution.

Keywords:

Galaxy evolution Interstellar medium Molecular clouds Star formation

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Area of Science:

Astrophysics
Galaxy Evolution
Interstellar Medium

Background:

Giant molecular clouds (GMCs) are fundamental to galaxy structure and evolution.
GMC properties are linked to galactic environment, influencing star formation.
Stellar feedback from massive stars disperses GMCs, impacting galaxies.

Purpose of the Study:

To synthesize observational, theoretical, and numerical findings on GMC evolution.
To present a dynamic model of the GMC lifecycle, star formation, and feedback.
To clarify the role of GMCs in galaxy evolution.

Main Methods:

Review of observational data on GMCs and star formation.
Analysis of theoretical models of cloud dynamics and feedback.
Synthesis of numerical simulations of galaxy-cloud interactions.

Main Results:

GMC evolution is a cycle of condensation, star formation, and feedback.
Galactic environment dictates initial conditions for star formation.
Stellar feedback significantly alters galactic medium properties.

Conclusions:

The GMC lifecycle is a primary driver of galaxy evolution.
Understanding evolutionary phase durations is key to identifying driving mechanisms.
This review provides a unified dynamical picture of GMCs in galaxies.