The Library
Common envelope evolution and triple dynamics as potential pathways to form the inner white dwarf + brown dwarf binary of the triple star system Gaia 0007−1605
Tools
Lagos, Felipe, Zorotovic, Monica, Schreiber, Matthias R. and Gaensicke, B. T. (2023) Common envelope evolution and triple dynamics as potential pathways to form the inner white dwarf + brown dwarf binary of the triple star system Gaia 0007−1605. Monthly Notices of the Royal Astronomical Society, 519 (2). pp. 2302-2308. doi:10.1093/mnras/stac3675 ISSN 1365-2966.
|
PDF
stac3675.pdf - Published Version - Requires a PDF viewer. Download (910Kb) | Preview |
Official URL: https://doi.org/10.1093/mnras/stac3675
Abstract
The recently discovered system Gaia 0007−1605 consisting of a white dwarf with a close brown dwarf companion and a distant white dwarf tertiary very much resembles the triple system containing the first transiting planet candidate around a white dwarf ever discovered: WD 1856+534. We have previously argued that the inner binary in WD 1856+534 most likely formed through common envelope evolution but triple star dynamics represent an alternative scenario. Here we analyze different formation scenarios for Gaia 0007−1605. We reconstructed the potential common envelope evolution of the system and find that assuming standard parameters for the energy budget provides a reasonable solution. In agreement with other close white dwarf + brown dwarf binaries, and in contrast to WD 1856+534, no energy sources other than orbital energy during common envelope evolution are required to understand the current configuration of the system. In addition, using analytical prescriptions for triple dynamics, we show that Von Zeipel–Lidov–Kozai oscillations might have trigger tidal migration due to high eccentricity incursions (e ≳ 0.997). We conclude that the inner binary in Gaia 0007−1605, as its sibling WD 1856+534, formed either through common envelope evolution, triple dynamics or a combination of both mechanisms.
Item Type: | Journal Article | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | Q Science > QB Astronomy | |||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||
SWORD Depositor: | Library Publications Router | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Stellar dynamics, Stars, Triple, Double stars, Brown dwarf stars, White dwarf stars | |||||||||||||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | |||||||||||||||
Publisher: | Oxford University Press (OUP) | |||||||||||||||
ISSN: | 1365-2966 | |||||||||||||||
Official Date: | February 2023 | |||||||||||||||
Dates: |
|
|||||||||||||||
Volume: | 519 | |||||||||||||||
Number: | 2 | |||||||||||||||
Page Range: | pp. 2302-2308 | |||||||||||||||
DOI: | 10.1093/mnras/stac3675 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Reuse Statement (publisher, data, author rights): | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society. All rights reserved. | |||||||||||||||
Access rights to Published version: | Free Access (unspecified licence, 'bronze OA') | |||||||||||||||
Copyright Holders: | © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society | |||||||||||||||
Date of first compliant deposit: | 27 June 2023 | |||||||||||||||
Date of first compliant Open Access: | 27 June 2023 | |||||||||||||||
RIOXX Funder/Project Grant: |
|
|||||||||||||||
Related URLs: |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year