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Revista mexicana de astronomía y astrofísica
Print version ISSN 0185-1101
Abstract
RIERA, A.; RAGA, A. C. and ALCOLEA, J.. The interaction of a jet-like pulse with a wind from a stellar companion. Rev. mex. astron. astrofis [online]. 2005, vol.41, n.1, pp.147-154. ISSN 0185-1101.
We present numerical simulations of the interaction between a collimated, bipolar "pulse" ejected from a star and a continuous wind ejected from a stellar companion. We explore the characteristics of the predicted Ha intensity maps by varying selected input parameters. We find that the asymmetry (in size and strength) between the two lobes of the proto-planetary nebula OH 231.8+4.2 is reproduced in this scenario if the wind ejected by the companion star has a strong latitude dependence.
Keywords : ISM [Kinematics and dynamics]; Planetary nebulae [Individual (OH231.8+4.2)].