Infrared cirrus

Infrared Galactic cirrus and other structures seen in infrared by NASA/IRAS in the constellation of Orion (right).

Infrared cirrus or galactic cirrus are galactic filamentary structures seen in space over most of the sky that emit far-infrared light. The name is given because the structures are cloud-like in appearance.[1] These structures were first detected by the Infrared Astronomy Satellite at wavelengths of 60 and 100 micrometres.

## See also

* Galaxy filament
* Cosmic infrared background

## References

1. ↑ Low, F. J. et al. (March 1, 1984), "Infrared cirrus - New components of the extended infrared emission", Astrophysical Journal, Part 2 278: L19−L22, doi:10.1086/184213, Bibcode: 1984ApJ...278L..19L.

## External links

* Molecular Hydrogen in Infrared Cirrus, Kristen Gillmon, J. Michael Shull, 2006 Abstract
* PDF Paper
* The Physics of Infrared Cirrus, C. Darren Dowell, Roger H. Hildebrand, Alexandre Lazarian, Michael W. Werner, Ellen Zweibel

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Nebula

Visible nebula|

* Dark nebula
* Diffuse nebula
* Emission nebula
* Planetary nebula
* Supernova remnant
* Nova remnant
* H II region
* Reflection nebula
* Variable nebula
* Preplanetary nebula

Pre-stellar nebula|

* Giant molecular cloud
* Bok globule
* Evaporating gaseous globule
* Solar nebula

Stellar nebula|

* Nova remnant
* Protoplanetary nebula
* Wolf–Rayet nebula

Post-stellar nebula|

* Planetary nebula
* Supernova remnant
* Pulsar wind nebula
* Supershell

Clouds|

* Interstellar cloud
* Molecular cloud
* Infrared cirrus
* High-velocity cloud
* H I region

Morphology|

* Bipolar nebula
* Pinwheel nebula

Lists|

* Diffuse
* Planetary (PNe)
* Protoplanetary (PPNe)
* Supernova remnants (SNRs)

* Category
* Commons
* Wiktionary

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