The oxygen abundance in the bulge

Ratio of Oxygen over Iron abundance as a function of the iron content in stars (both axis are using logarithmic scales). The green circle denotes the stars in the Bulge studied by the present astronomers, while the yellow triangles and blue crosses are previous data obtained for stars in the disc of our Galaxy. The bulge stars are clearly more oxygen-rich than disc stars, highlighting the 'genetic difference' between the bulge and disc stars.

Autorska prava:

ESO

O slici

Id:eso0634b
Tip:Grafikon
Datum objavljivanja:12. septembar 2006.
Povezana saopštenja:eso0634
Veličina:2330 x 1106 px

O objektu

Naziv:Milky Way
Tip:Milky Way : Galaxy
Kategorija:Galaxies

Formati slika

Veliki JPEG
281,1 KB

 

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