BINARY CENTRAL STARS OF PLANETARY NEBULAE DISCOVERED THROUGH PHOTOMETRIC VARIABILITY. III. THE CENTRAL STAR OF ABELL 65
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Hillwig-2015-BINARY CENTRAL STARS.pdf
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Author(s)
Hillwig, Todd C.
Frew, David J.
Louie, Melissa
Marco, Orsola De
Bond, Howard E.
Jones, David
Schaub, Samuel Clay
Date Issued
July 2015
Journal
The Astronomical Journal
Publisher
IOP Publishing
Citation
Hillwig, Todd C., David J. Frew, Melissa Louie, Orsola De Marco, Howard E. Bond, David Jones, and S. C. Schaub. “BINARY CENTRAL STARS OF PLANETARY NEBULAE DISCOVERED THROUGH PHOTOMETRIC VARIABILITY. III. THE CENTRAL STAR OF ABELL 65.” The Astronomical Journal 150, no. 1 (July 1, 2015): 30. © 2015 The American Astronomical Society
Version
Final published version
Abstract
A growing number of close binary stars are being discovered among central stars of planetary nebulae. Recent and ongoing surveys are finding new systems and contributing to our knowledge of the evolution of close binary systems. The push to find more systems was largely based on early discoveries which suggested that 10%–15% of all central stars are close binaries. One goal of this series of papers is confirmation and classification of these systems as close binaries and determination of binary system parameters. Here we provide time-resolved multi-wavelength photometry of the central star of Abell 65 as well as further analysis of the nebula and discussion of possible binary–nebula connections. Our results for Abell 65 confirm recent work showing that it has a close, cool binary companion, though several of our model parameters disagree with the recently published values. With our longer time baseline of photometric observations from 1989 to 2009 we also provide a more precise orbital period of 1.0037577 days.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Plasma Science and Fusion Center
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1088/0004-6256/150/1/30
