Circumgalactic medium and galactic baryon budget
Galaxies are surrounded by large halos of thin gas, the circumgalactic medium, that feed and receive gas from the galaxy. Most of the ordinary matter that should belong to a galaxy like ours is not found in its stars and disk gas.
Why it matters
Halo gas controls how galaxies get fuel for new stars and where the products of stellar explosions end up.
Review
J. Tumlinson, M. S. Peeples, J. K. Werk, The Circumgalactic Medium, Annual Review of Astronomy and Astrophysics, 2017. https://arxiv.org/abs/1709.09180 reference checked
Timestamp record
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- 0def120d1b60…
- Public log
- Entry 30, in checkpoint 2,123
- In the log by
- Block 969,698, 2026-10-03
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