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ASAS J071404+7004.3 : a close, bright nova-like cataclysmic variable with gusty winds
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Inight, Keith, Gaensicke, B. T., Blondel, D., Boyd, D., Ashley, R. P., Knigge, C., Long, K. S., Marsh, T. R., McCleery, J., Scaringi, S., Steeghs, D., Thorstensen, J. R., Vanmunster, T. and Wheatley, P. J. (2022) ASAS J071404+7004.3 : a close, bright nova-like cataclysmic variable with gusty winds. Monthly Notices of the Royal Astronomical Society, 510 (3). pp. 3605-3621. doi:10.1093/mnras/stab3662 ISSN 0035-8711.
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Official URL: https://doi.org/10.1093/mnras/stab3662
Abstract
Despite being bright (V ≃ 11.8) and nearby (d = 212 pc) ASAS J071404+7004.3 has only recently been identified as a nova-like cataclysmic variable. We present time-resolved optical spectroscopy obtained at the Isaac Newton and the Hiltner and McGraw-Hill Telescopes, together with Swift X-ray and ultraviolet observations. We combined these with TESS photometry and find a period of 3.28 h and a mass transfer rate of 4−9×10−9M⊙yr−1. Historical photometry shows at least one low state establishing the system as a VY Scl star. Our high-cadence spectroscopy also revealed rapidly changing winds emanating from the accretion disc. We have modelled these using the Monte Carlo PYTHON code and shown that all the emission lines could emanate from the wind – which would explain the lack of double-peaked lines in such systems. In passing, we discuss the effect of variability on the position of cataclysmic variables in the Gaia Hertzsprung–Russell diagram.
| Item Type: | Journal Article | |||||||||
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| Alternative Title: | Close, bright nova-like cataclysmic variable with gusty winds | |||||||||
| Subjects: | Q Science > QB Astronomy | |||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics Faculty of Science, Engineering and Medicine > Science > Physics |
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| Library of Congress Subject Headings (LCSH): | Stars -- Evolution, Cataclysmic variable stars, HR diagrams | |||||||||
| Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | |||||||||
| Publisher: | Wiley | |||||||||
| ISSN: | 0035-8711 | |||||||||
| Official Date: | March 2022 | |||||||||
| Dates: |
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| Volume: | 510 | |||||||||
| Number: | 3 | |||||||||
| Page Range: | pp. 3605-3621 | |||||||||
| DOI: | 10.1093/mnras/stab3662 | |||||||||
| 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 © 2021 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. | |||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||
| Date of first compliant deposit: | 10 November 2022 | |||||||||
| Date of first compliant Open Access: | 10 November 2022 | |||||||||
| RIOXX Funder/Project Grant: |
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