ASTR 273Diffuse Matter in Space
Astronomy · 4 units · Graduate courses (200-299)
Molecular clouds, warm and hot phases of interstellar medium, HII regions. Gas excitation and emission in diffuse matter. Particulate interstellar matter: formation and spectral properties. Interstellar chemistry. Intergalactic medium.
Letter grading.
When it runs
- Spring 2026
- Spring 2027
Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.
Requisites
UCLA lists no requisites for this course.
Requires
Everything that has to come before this course, not just the courses named in the requisite above.
Nothing — this is an entry point.
Unlocks
What this course is a requisite for, and what those courses lead to in turn.
No course in the catalog lists this as a requisite.