@inproceedings{d7c67de7e616450ab484b4ba3c03b9af,
title = "Searching for binary central stars of planetary nebulae with Kepler",
abstract = "The Kepler Observatory offers unprecedented photometric precision (<1 mmag) and cadence for monitoring the central stars of planetary nebulae, allowing the detection of tiny periodic light curve variations, a possible signature of binarity. With this precision free from the observational gaps dictated by weather and lunar cycles, we are able to detect companions at much larger separations and with much smaller radii than ever before. We have been awarded observing time to obtain light-curves of the central stars of the six confirmed and possible planetary nebulae in the Kepler field, including the newly discovered object Kn 61, at cadences of both 30 min and 1 min. Of these six objects, we could confirm for three a periodic variability consistent with binarity. Two others are variables, but the initial data set presents only weak periodicities. For the central star of Kn 61, Kepler data will be available in the near future.",
keywords = "binaries: close, planetary nebulae: individual (A 61, NGC 6826, NGC 4742, Kn 61, Pa 5, PaTe 1)",
author = "Dimitri Douchin and Jacoby, {George H.} and {De Marco}, Orsola and Howell, {Steve B.} and Mattias Kronberger",
year = "2011",
month = jul,
doi = "10.1017/S1743921312011349",
language = "English",
isbn = "9781107019836",
series = "Proceedings of the International Astronomical Union",
publisher = "Cambridge University Press (CUP)",
number = "S283",
pages = "344--345",
editor = "Arturo Manchado and Letizia Stanghellini and Detlef Sch{\"o}nberner",
booktitle = "Planetary nebulae",
address = "United Kingdom",
note = "283rd Symposium of the International Astronomical Union ; Conference date: 25-07-2011 Through 29-07-2011",
}