Infrared cirrus

As infrared cirrus is weak infrared radiation from interstellar dust in the Milky Way called. The name comes from the fact that the images of the Infrared Astronomical Satellite (1983) showed a resemblance to cirrus clouds , it was proposed by a team led by Frank James Low in 1984.

The source of the infrared cirrus is very likely to consist of dust particles no larger than those of tobacco smoke. The particles are thought to consist in supernova explosions entstandenem or stellar winds auskondensiertem carbon . The temperature of the dust particles is in the range of 30 to 40  K . The infrared cirrus is at least 1000  AU away from the sun and thus differs from the much warmer and closer to the sun zodiacal light .

See also

• Infrared astronomy

Web links

• Kristen Gillmon & J. Michael Shull: Molecular Hydrogen in Infrared Cirrus , arxiv : astro-ph / 0507587 (English)
• C. Darren Dowell, Roger H. Hildebrand, Alex Lazarian, Michael W. Werner, Ellen Zweibel: The Physics of Infrared Cirrus (PDF; 403 kB; English)

Individual evidence

1. ^ MG Hauser: 'Infrared cirrus' - New light on the interstellar medium . In: 2nd MIT, Haystack Observatory, and NSF, Haystack Observatory Meeting on Interstellar Matter . June 10, 1987, bibcode : 1988ApL & C..26..249H (English).