Atmospheric parameters and chemical composition of beta Cephei stars in the open cluster NGC 3293

Details Atmospheric parameters and chemical composition of beta Cephei stars in the open cluster NGC 3293 Atmospheric parameters and chemical composition of beta Cephei stars in the open cluster NGC 3293

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009coast.158..146n&link_type=abstract

"Communications in Asteroseismology, Vol.158, p. 146 Proceedings of "38th Liege International Astrophysical Colloquium: Evoluti

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

We introduce a new project concerning the spectroscopic analysis of β~Cephei stars in open clusters. The high-resolution, high signal-to-noise observations were collected for β~Cephei stars and comparison non-pulsating stars in NGC~3293, NGC~4755, NGC~6231, NGC~6910 and NGC~884. These data allow us to obtain atmospheric parameters (effective temperature, surface gravity, microturbulence), chemical abundances and rotational velocities of all analysed objects. Here we present the preliminary results for six pulsating stars in NGC~3293.

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