Bibcode
                                    
                            Simón-Díaz, S.; Herrero, A.; Esteban, C.
    Bibliographical reference
                                    The Eight Texas-Mexico Conference on Astrophysics (Eds. M. Reyes-Ruiz & E. Vázquez-Semadeni) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 18, pp. 123-125 (2003) (http://www.astroscu.unam.mx/~rmaa/)
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                        9
            
                        2003
            
  Citations
                                    3
                            Refereed citations
                                    2
                            Description
                                    A spectroscopic study of the Trapezium Cluster stars in the Orion Nebula
is presented. We determine the stellar parameters of the two B0.5V stars
theta(1}_{)  Ori A and D. The variable spectral features of theta(1}_{)
Ori C are studied, and some consequences on the modeling of the stellar
atmosphere are considered.