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The Hourglass Nebulae of Sher 25 and SN 1987 A: Two of a Kind?
Wolfgang Brandner, You-Hua Chu, Frank Eisenhauer +2
We have performed a detailed study of the morphology and kinematics of the hourglass-shaped nebula around the blue supergiant Sher 25 in the galactic giant HII region NGC 3603. Nea…
Two Ring Nebulae around Blue Supergiants in the Large Magellanic Cloud
K. Weis, Y. -H. Chu, W. J. Duschl +1
Ring nebulae are often found around massive stars such as Wolf-Rayet stars, OB and Of stars and Luminous Blue Variables (LBVs). In this paper we report on two ring nebulae around b…
X-Rays from Superbubbles in the Large Magellanic Cloud. V. The H II Complex N11
Mordecai-Mark Mac Low, Thomas H. Chang, You-Hua Chu +3
The large H II complex N11 in the Large Magellanic Cloud contains OB associations at several different stages in their life histories. We have obtained ROSAT PSPC and HRI X-ray obs…
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…