Pyrzas, S., Gaensicke, B. T., Hermes, J. J. et al. (12 more authors) (2015) Discovery of ZZ Cetis in detached white dwarf plus main-sequence binaries. Monthly Notices of the Royal Astronomical Society, 447 (1). pp. 691-697. ISSN 0035-8711
Abstract
We present the first results of a dedicated search for pulsating white dwarfs (WDs) in detached WD plus main-sequence (MS) binaries. Candidate systems were selected from a catalogue of WD+MS binaries, based on the surface gravities and effective temperatures of the WDs. We observed a total of 26 systems using ULTRACAM mounted on ESO's 3.5 m New Technology Telescope at La Silla. Our photometric observations reveal pulsations in seven WDs of our sample, including the first pulsating WD with an MS companion in a post-common envelope (CE) binary, SDSS J1136+0409. Asteroseismology of these new pulsating systems will provide crucial insight into how binary interactions, particularly the CE phase, affect the internal structure and evolution of WDs. In addition, our observations have revealed the partially eclipsing nature of one of our targets, SDSS J1223−0056.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. This is an author produced version of a paper subsequently published in Monthly Notices of the Royal Astronomical Society. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | asteroseismology; binaries: close; binaries: eclipsing; stars: low-mass; white dwarfs |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 30 Nov 2016 14:52 |
Last Modified: | 20 Mar 2018 19:25 |
Published Version: | http://dx.doi.org/10.1093/mnras/stu2412 |
Status: | Published |
Publisher: | Oxford University Press (OUP): Policy P - Oxford Open Option A |
Refereed: | Yes |
Identification Number: | 10.1093/mnras/stu2412 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:108501 |