Metals in Sagittarius dwarf galaxy

This image shows a tiny portion of the spectrum of a giant star (V = 18.2) in the Sagittarius Dwarf galaxy, as recorded by UVES. A total integration time of 3 hours covered the spectral range 480 - 680 nm and provided a S/N-ratio of approx. 40 at 600 nm. The figure shows transitions due to FeI, CaI and BaII and illustrates the wealth of different elements that can be accurately measured in an object as faint as this one.

Crédit:

ESO

À propos de l'image

Identification:eso0013d
Type:Observation
Date de publication:6 avril 2000
Communiqués de presse en rapport:eso0013
Taille:800 x 613 px

À propos de l'objet

Nom:Sagittarius Dwarf Galaxy
Type:Local Universe : Galaxy : Size : Dwarf
Local Universe : Galaxy : Type : Elliptical
Distance:80000 années lumière
Catégorie:Galaxies

Image Formats

Grand JPEG
73,6 Kio

Couleurs & filtres

DomaineTélescope
Visible
V
Very Large Telescope
UVES