[WC] Stellar Wind Turbulent Outflows Feeding the ISM

Abstract

Wind fluctuations in [WC 8-9]-type central stars of planetary nebulae have been detected. Moving features seen on the top of the C III lambda 5696 and C IV lambda lambda 5801/12 emission lines of HD 826 (NGC 40) and BD +30^o3639 are interpreted as outflowing clumps which are radially accelerated in the Wolf-Rayet winds. Kinematic parameters of the blobs were derived and compared to those observed for massive Wolf-Rayet stars.

Resumen

Se han detectado fluctuaciones en los vientos de las estrellas centrales, con tipos [WC 8–9], de nebulosas planetarias. Estructuras en movimiento de las líneas C III λ5696 y C IV λλ5801/12 son interpretadas como inhomogeneidades aceleradas por los vientos Wolf-Rayet. Sus parámetros cinemáticos son comparados con los observados en estrellas Wolf-Rayet masivas.