Rule or exception? Planetary nebulae around hot subdwarf stars [PDF]
A. Aller, L. F. Miranda, A. Ulla, R. Oreiro, M. Manteiga, E. Pérez, C. Rodríguez-LópezIn this work, we present the first results of an ongoing survey to search for planetary nebulae (PNe) around hot subdwarf stars (sdOs). Deep images and intermediate-resolution long-slit spectra of RWT 152, the only confirmed PN+sdO system in the northern hemisphere, as well as preliminary results for other sdO+PN candidate are presented.View original: http://arxiv.org/abs/1212.5412
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