Showing 1997Show all
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astro-ph1997
No stellar age gradient inside supergiant shell LMC 4
Jochen M. Braun, Dominik J. Bomans, Jean-Marie Will +1
The youngest stellar populations of a 'J'-shaped region (400 pc strip E-W across LH 77 and 850 pc S-N) inside the supergiant shell (SGS) LMC 4 (with a diameter of 1.4 kpc) have bee…
astro-ph1997
NGC 1427A - an LMC type galaxy in the Fornax Cluster
M. Hilker, D. J. Bomans, L. Infante +1
We have discovered that the Fornax irregular galaxy NGC 1427A is in very many respects a twin of the Large Magellanic Cloud. Based on B, V, I, and H alpha images, we find the follo…
astro-ph1997
The bipolar structure of the LBV nebula around HR Carinae
K. Weis, W. J. Duschl, D. J. Bomans +2
HR Carinae is one of the few Luminous Blue Variables (LBVs) in the Galaxy. It has a nebula that appears bipolar. We have obtained imaging and high-dispersion, long-slit echelle dat…