Slug Nebula
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| Nebula | |
|---|---|
| File:An image of the nebula around UM 287.jpg Image of the Slug Nebula. The bright circular blue-white for is the quasar UM 287 while the blue haze is the nebula itself. | |
| Observation data | |
| Distance | z=2.283 |
| Physical characteristics | |
| Radius | 450 kpc pc |
| Notable features | One of the largest and luminous Lyman-alpha nebula |
The Slug Nebula is one of the largest and most luminous Lyman-alpha nebula discovered so far extending over 450 kpc. The nebula sits at a distance of z=2.283 surrounds a bright quasar named UM287.[1]
It has a high surface brightness and is filimentary. This high surface brightness implies two things: (1) very large densities of cold and ionized gas, (2) very large colum densities of neutral hydrogen.[2]
References
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