Evolution of WR ring nebulae generated by moving central stars - I. The paradigm of G2.4+1.4

Astronomy and Astrophysics – Astronomy

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Stars: Mass-Loss, Stars: Wolf-Rayet, Ism: Bubbles, Ism: Individual: G2.4+1.4.

Scientific paper

We present a two-dimensional numerical simulation of the interaction between the stellar wind blown by a Wolf-Rayet star and the local interstellar medium (ISM) through which the star is moving. Modifications of the surrounding medium due to the previous action of the main-sequence stellar wind are also considered. It is shown that the proposed scenario can naturally account for the structure of the nebula G2.4+1.4 without any particular assumption about the unperturbed local medium.

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