Outflow from and asymmetries in the nebula around the LBV candidate Sk-69 279

Details Outflow from and asymmetries in the nebula around the LBV candidate Sk-69 279 Outflow from and asymmetries in the nebula around the LBV candidate Sk-69 279

2002-07-04

arxiv.org/abs/astro-ph/0207109v1

Astron.Astrophys.393:503-510,2002

Astronomy and Astrophysics

Astrophysics

8 pages, 5 figures, accepted in A&A ; paper inculding images in higher resolution at http://www.mpifr-bonn.mpg.de/staff/kwei

Scientific paper

10.1051/0004-6361:20021047

We present and discuss new long-slit Echelle spectra of the LMC LBV candidate Sk-69 279 and put them in context with previous images and spectra. While at first glance a simple spherically expanding symmetric shell, we find a considerably more complex morphology and kinematics. The spectra indicate that morphologically identified deviations from sphericity are outflows of faster material out of the main body of Sk-69 279. The morphological as well as the kinematic similarity with other LBV nebulae makes it likely that Sk-69 279 is an LBV candidate, indeed, and poses the question in how far outflows out of expanding LBV nebulae are a general property of such nebulae--at least during some phases of their evolutions.

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