Spectrophotometry of the Orion Nebula. II. The abundance of elements

Astronomy and Astrophysics – Astronomy

Scientific paper

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Ism: Abundances, Hii Regions, Photometry

Scientific paper

Using a recent spectrophotometric study of the Orion Nebula, the
chemical composition of this object is derived. The electron temperature
is also given. The abundance by mass is X = 0.713; Y = 0.26 +/- 0.02; Z
= 0.027 +/- 0.004, which is very close to the so-called primordial
abundance.

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