The Stellar Oxygen Abundance Gradient in M33

Bibcode
1997ApJ...474L.107M
DOI
10.1086/310441
Monteverde, M. I.; Herrero, A.; Lennon, D. J.; Kudritzki, R.-P.
Referencia bibliográfica

Astrophysical Journal Letters v.474, p.L107

Fecha de publicación:
1
1997
Número de autores
4
Número de autores del IAC
1
Número de citas
57
Número de citas referidas
46
Descripción
We report here first results concerning stellar oxygen abundances in M33. Non-LTE model atmosphere and non-LTE line formation calculations were used to determine the oxygen abundance of B-type supergiants. By choosing stars located at different projected radial distances to the center of M33, we are able to determine the oxygen abundance gradient, for which we obtain a value of -0.16 +/- 0.06 dex kpc-1. This is the first time that the oxygen stellar abundance gradient has been determined in a spiral galaxy other than the Milky Way.
Tipo
Con árbitro
Galaxias

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