infrared source

Related Overviews


More Like This

Show all results sharing this subject:

  • Astronomy and Astrophysics


Quick Reference

Any cosmic source of infrared radiation. All stars emit infrared radiation, and the cooler they are the more energy they emit in the infrared. Warm dust is also a major infrared source. Prominent infrared sources include red giants and supergiants with dust shells, H II regions, the galactic centre, star-forming regions, and active galaxies. Many active galaxies (especially starburst galaxies) emit the bulk of their energy in the infrared.

Subjects: Astronomy and Astrophysics.

Reference entries