Structure of the pulsating red giant S Ori (artist's impression)

Sketch of the structure of a pulsating red giant, as derived by the recent interferometric study on S Orionis. The environment around the parent star is made up by three main components : a molecular shell (inner red layer), a dust shell (outer red layer) and a maser shell (red and green speckles). Grains of aluminum oxide constitute most of the dust shell (observed in the infrared band), while the maser radio emission comes from silicon monoxide molecules. The maser spots velocities indicates that the gas is expanding, at a speed of about 10 km/s.

Bildnachweis:

ESO

Über das Bild

ID:eso0725b
Typ:Illustration
Veröffentlichungsdatum:31. Mai 2007
Dazugehörige Veröffentlichungen:eso0725
Größe:3491 x 3476 px

Über das Objekt

Name:S Orionis
Typ:Milky Way : Star : Evolutionary Stage : Red Giant
Entfernung:1400 Lichtjahre
Kategorie:Illustrations
Stars

Bildformate

Großes JPEG
1,8 MB

Skalierbar


Bildschirm-Hintergrundbilder

1024x768
191,3 KB
1280x1024
295,7 KB
1600x1200
399,6 KB
1920x1200
453,2 KB
2048x1536
607,5 KB