The determination of the stellar O abundance of the elliptical galaxies
收藏ESA Earth Online2026-06-22 收录
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The O abundance is the most important, since it is the most abundant elementexcept H and He, and synthesized only by type II supernovae (SNe). In ellipticalgalaxies, an accumulation of stellar mass loss emit Xrays and therefore, the Oabundance of the Xray emitting gas reflects the stellar metallicity. Therefore,I propose to observe two elliptical galaxies, NGC 1404 and NGC 4374. anddetermine the O abundance of the gas with the RGS.
