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.

Autorska prava:

ESO

O slici

Id:eso0013d
Tip:Opservacija
Datum objavljivanja:6. april 2000.
Povezana saopštenja:eso0013
Veličina:800 x 613 px

O objektu

Naziv:Sagittarius Dwarf Galaxy
Tip:Local Universe : Galaxy : Type : Elliptical
Local Universe : Galaxy : Size : Dwarf
Udaljenost:80000 svetlosnih godina
Kategorija:Galaxies

Formati slika

Veliki JPEG
73,6 KB

Boje i flteri

OpsegTeleskop
Optički
V
Very Large Telescope
UVES