Truncated collimated flows in Abell 30, Abell 78 and the honeycomb nebula
Por:
Meaburn J., Redman M.P., Bryce M., López J.A., Al-Mostafa Z.A., Dyson J.E.
Publicada:
1 ene 2000
Resumen:
Localised collimated flows of ionized gas are found in two hydrogen deficient planetary nebulae, Abell 30 and Abell 78 as well as in the Honeycomb complex of interlocking shells in halo of 30 Dor in the Large Magellanic Cloud. One common feature of these flows, in seemingly disparate objects, is that they all terminate at around the same difference in radial velocity (with respect to that of the systemic radial velocity). A possible explanation involves high speed flows being decelerated by mass-loading. In Abell 30 and 78, mass is injected by clumps embedded in the fast wind. In the Honeycomb nebula, a supernova blast wave has pierced an old dense shell wall which adds mass to the post-shock flow via a boundary layer.
Filiaciones:
Meaburn J.:
Department of Physics and Astronomy, Jodrell Bank Observatory, University of Manchester, Macclesfield, United Kingdom
Redman M.P.:
Department of Physics and Astronomy, Jodrell Bank Observatory, University of Manchester, Macclesfield, United Kingdom
Bryce M.:
Department of Physics and Astronomy, Jodrell Bank Observatory, University of Manchester, Macclesfield, United Kingdom
López J.A.:
Instituto de Astronomía, UNAM, Ensenda, Mexico
Al-Mostafa Z.A.:
Department of Physics and Astronomy, Jodrell Bank Observatory, University of Manchester, Macclesfield, United Kingdom
King Abdulaziz City for Sci. and T., Inst. of Astron. and Geophys. Res., Riyadh, Saudi Arabia
Dyson J.E.:
Department of Physics and Astronomy, University of Leeds, Leeds, United Kingdom
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