W. Steffen1 and J. A. López1
1 Instituto de Astronomía, UNAM, Apdo. Postal 877, 22860 Ensenada, B. C., México (jal@astrosen.unam.mx, wsteffen@astrosen.unam.mx).
Received, 2005 November 3
Accepted 2006 January 25
]]> RESUMEN
Presentamos una nueva herramienta poderosa para analizar y desenredar la geometría 3-D y la estructura cinemática de nebulosas gaseosas. El método consiste en combinar software comercial para animación digital para simular la estructura 3-D y el modo de expansión de la nebulosa junto con un software de representación gráfica de imágenes y perfiles de línea diseñado especialmente para este propósito. Las imágenes resultantes se comparan directamente con datos reales. Presentamos resultados para las complejas nebulosas planetarias NGC 6369 y Abell 30 basados en espectros de rendija larga obtenidos en el observatorio de San Pedro Mártir.
ABSTRACT
We present a powerful new tool to analyse and disentangle the 3-D geometry and kinematic structure of gaseous nebulae. The method consists in combining commercially available digital animation software to simulate the 3-D structure and expansion pattern of the nebula with a dedicated, purpose-built rendering software that produces the final images and long slit spectra which are compared to the real data. We show results for the complex planetary nebulae NGC 6369 and Abell 30 based on long slit spectra obtained at the San Pedro Mártir Observatory.
Key Words: ISM: KINEMATICS AND DYNAMICS — PLANETARY NEBULAE: INDIVIDUAL (NGC 6369, ABELL 30) — STARS: MASS LOSS.
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ACKNOWLEDGEMENTS
]]> We acknowledge support from DGAPA-UNAM projects IN111803 and IN112103 as well as CONACYT projects 37214 and 43121.
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