Vi beklager Denne side findes endnu ikke på dansk, så vi viser den på originalsproget istedet
Lyman-alpha forest in QSO HE2217-2818
A tracing of one spectral order, corresponding to one horizontal line in the echelle spectrum. It shows part of the Lyman-alpha forest in the ultraviolet spectrum of the southern quasar QSO HE2217-2818 . The absorption lines are caused by intervening, neutral hydrogen gas located at different distances along the line-of-sight towards this quasar.
Kilde:ESO
Om billedet
| Id: | eso9944e |
| Type: | Diagram |
| Udgivelsesdato: | 5. oktober 1999 |
| Relaterede pressemeddelelser: | eso9944 |
| Størrelse: | 3003 x 1540 px |
Om objektet
| Navn: | QSO HE2217-2818, Spectrum |
| Type: | Early Universe : Galaxy : Activity : AGN : Quasar |
| Afstand: | z=2.4 (rødforskydning) |
| Kategori: | Quasars and Black Holes |
Farver & filtre
| Bånd | Teleskop |
|---|---|
| Ultraviolet | Very Large Telescope UVES |