The binary central stars of PNe with the shortest orbital periods

Details The binary central stars of PNe with the shortest orbital periods The binary central stars of PNe with the shortest orbital periods

2010-09-15

arxiv.org/abs/1009.3055v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

6 pages, 2 figures, to appear in the proceedings of the Asymmetric Planetary Nebulae V conference

Scientific paper

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.

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