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Giant space blob glows from within
This image shows one of the largest known single objects in the Universe, the Lyman-alpha blob LAB-1. This picture is a composite of two different images taken with the FORS instrument on the Very Large Telescope (VLT) — a wider image showing the surrounding galaxies and a much deeper observation of the blob itself at the centre made to detect its polarisation. The intense Lyman-alpha ultraviolet radiation from the blob appears green after it has been stretched by the expansion of the Universe during its long journey to Earth. These new observations show for the first time that the light from this object is polarised. This means that the giant "blob" must be powered by galaxies embedded within the cloud.
Autorska prava:ESO/M. Hayes
O slici
| Id: | eso1130a |
| Tip: | Opservacija |
| Datum objavljivanja: | 17. avgust 2011. 19:00 |
| Povezana saopštenja: | eso1632, eso1130 |
| Veličina: | 2042 x 2042 px |
O objektu
| Naziv: | LAB-1 |
| Tip: | Early Universe : Cosmology : Morphology : Large-Scale Structure |
| Udaljenost: | z=3.1 (crveni pomak) |
| Constellation: | Aquarius |
| Kategorija: | Cosmology |
Wallpapers
Koordinate
| Position (RA): | 22 17 25.78 |
| Position (Dec): | 0° 12' 39.20" |
| Field of view: | 1.60 x 1.60 arcminutes |
| Orijentacija: | Sever je 9.9°desno od vertikale |
Pogledajte na WorldWide teleskopu:
Boje i flteri
| Opseg | Talasna dužina | Teleskop |
|---|---|---|
| Optički B | Very Large Telescope FORS2 | |
| Optički Pseudogreen (B+R) | Very Large Telescope FORS2 | |
| Optički OIII | 500 nm | Very Large Telescope FORS2 |
| Optički V | Very Large Telescope FORS2 |
