VLT/VIMOS-havaintoja shokkirintamasta supernovajäänteessä SN 1006
Hyvin yksityiskohtaiset uudet ESO:n VLT-teleskoopin (Very Large Telescope) havainnot tuhat vuotta vanhasta supernovasta ovat paljastaneet johtolankoja kosmisten säteiden alkuperään.
Vasemmalla oleva kuva esittää koko supernovajäännettä SN 1006 nähtynä radioaalloilla (punaisella), röntgensäteillä (sinisellä) ja näkyvässä valossa (keltaisella). Kuvan toinen osa, joka vastaa pientä vasemmalle merkittyä neliön muotoista aluetta, on NASA:n ja ESA:n Hubblen avaruusteleskoopin lähikuva huomattavan kapeasta alueesta shokkirintamaa, josas supernovan materia törmää tähtienväliseen aineeseen. Kuvan kolmas osa esittää kuinka VIMOS-havaintolaitteen yhtenäiskenttäyksikkö jakaa kuvan useisiin pieniin alueisiin, joista kustakin valo levitetään sen komponenttivärien spektriksi. Näitä spetkrejä analysoimalla voidaan johtaa alla olevien kohteiden ominaisuuksien karttoja. Tässä oikealla esitetty esimerkki on kaasun yhden ominaisuuden kartta (spektriviivan leveys), joka on hämmästyttävän vaihteleva ja viittaa muiden merkkien ohella hyvin suurten nopeuksien protonien läsnäoloon.
Oikeudet:ESO, Radio: NRAO/AUI/NSF/GBT/VLA/Dyer, Maddalena & Cornwell, X-ray: Chandra X-ray Observatory; NASA/CXC/Rutgers/G. Cassam-Chenaï, J. Hughes et al., Visible light: 0.9-metre Curtis Schmidt optical telescope; NOAO/AURA/NSF/CTIO/Middlebury College/F. Winkler and Digitized Sky Survey.
Kuvasta
| Tunnistus: | eso1308a |
| Kieli: | fi |
| Tyyppi: | Kokoelma |
| Julkaisupäivä: | 14. helmikuuta 2013 20:00 |
| Vastaavat julkaisut: | eso1308 |
| Koko: | 7059 x 2179 px |
Kohteesta
| Nimi: | SN 1006 |
| Tyyppi: | Milky Way : Nebula : Type : Supernova Remnant |
| Etäisyys: | 7000 valovuotta |
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