infrared cirrus

Show Summary Details

Quick Reference

Wispy clouds of infrared emission first detected by the Infrared Astronomical Satellite and prominent at 60 and 100 μm. Most infrared cirrus is believed to be emission from dust grains in hydrogen clouds, heated by ultraviolet radiation to 20–30 K. Some of the denser cirrus clouds have cooler cores. The clouds are brighter at 12 and 25 μm than expected, possibly due either to a component of very small dust grains or to line emission from complex molecules.

Subjects: Astronomy and Astrophysics.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.