Stellar bubbles inside planetary nebulae

Details Stellar bubbles inside planetary nebulae Stellar bubbles inside planetary nebulae

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996mnras.283.1405s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 283, Issue 4, pp. 1405-1408.

Astronomy and Astrophysics

Astronomy

4

Binaries: General, Circumstellar Matter, Stars: Mass-Loss, Ism: Bubbles, Planetary Nebulae: General, Planetary Nebulae: Individual: Ic 4593

Scientific paper

We calculate the general structures and sizes of bubbles blown by stars located inside planetary nebulae. Such bubbles are likely to be formed by very wide binary companions to the progenitors of planetary nebulae, i.e., orbital separations of >~1000 au, or by passing stars in globular clusters. The bubbles are likely to appear as bright, low-ionization small (10^15-10^17 cm) areas in images of planetary nebulae. We show that the `blob' of the planetary nebulae IC 4593 might, under favourable physical parameters, be a stellar bubble blown by a very wide red giant companion. We speculate that future high spatial resolution images of planetary nebulae will reveal stellar bubbles in more planetary nebulae.

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