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The binary central stars of PNe with the shortest orbital periods

Close binarity can play a significant role in the shaping of planetary nebulae (PNe) as the system evolves through the common-envelope phase. We present the detection of two of the shortest orbital periods among PN binary central stars. These are Hen 2-428, a bipolar PN, and V458 Vul, a recent nova surrounded by a mildly bipolar planetary nebula. The properties of the central stars of these systems, of their nebulae and their possible fate are discussed.

preprint2010arXivOpen access
M. Santander-GarciaP. Rodriguez-GilD. JonesR. L. M. CorradiB. MiszalskiS. PyrzasM. M. Rubio-Diez
astro-ph.SR
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Open access7 authors1 topic
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M. Santander-GarciaP. Rodriguez-GilD. JonesR. L. M. CorradiB. MiszalskiS. PyrzasM. M. Rubio-Diez

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