ASAS J071404+7004.3 -- a close, bright nova-like cataclysmic variable with gusty winds
ASAS J071404+7004.3 -- a close, bright nova-like cataclysmic variable with gusty winds
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.
astro-ph.SR, astro-ph.HE
3605–3621
Inight, Keith
50094ab3-58f7-411d-907b-c7a04ff7d328
Gaensicke, Boris
cc9d64c5-9918-4441-a8cd-df5369434a67
Blondel, Dominic
e4512f25-fcd5-4d5b-97a4-e993e3bf0b47
Boyd, David
7f2b5171-dded-41f8-9b2b-6d77ce7331b2
Ashley, Richard
4ddc4987-aad3-44a9-8d17-2a11095706ca
Knigge, Christian
ac320eec-631a-426e-b2db-717c8bf7857e
Long, Knox
2195d0ac-518d-4738-8e89-3e8e7a035a6c
Marsh, Tom
9bb19766-4a1d-4f18-b137-4731ae347638
McCleery, Jack
e69b3601-f3c7-48d8-8a0a-8b8aa88cce36
Scaringi, Simone
88701970-a1b9-41fe-bf55-886716ee3374
Steeghs, Danny
f631b06c-3e33-4daa-8959-c41f188e9c38
Thorstensen, John
1767dc0a-121c-4fc1-98f6-e08d51939eef
Vanmunster, Tonny
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Wheatley, Peter
1ac43860-3628-4b04-a26a-f4a3a2fb89d6
16 December 2021
Inight, Keith
50094ab3-58f7-411d-907b-c7a04ff7d328
Gaensicke, Boris
cc9d64c5-9918-4441-a8cd-df5369434a67
Blondel, Dominic
e4512f25-fcd5-4d5b-97a4-e993e3bf0b47
Boyd, David
7f2b5171-dded-41f8-9b2b-6d77ce7331b2
Ashley, Richard
4ddc4987-aad3-44a9-8d17-2a11095706ca
Knigge, Christian
ac320eec-631a-426e-b2db-717c8bf7857e
Long, Knox
2195d0ac-518d-4738-8e89-3e8e7a035a6c
Marsh, Tom
9bb19766-4a1d-4f18-b137-4731ae347638
McCleery, Jack
e69b3601-f3c7-48d8-8a0a-8b8aa88cce36
Scaringi, Simone
88701970-a1b9-41fe-bf55-886716ee3374
Steeghs, Danny
f631b06c-3e33-4daa-8959-c41f188e9c38
Thorstensen, John
1767dc0a-121c-4fc1-98f6-e08d51939eef
Vanmunster, Tonny
8b344f0b-403d-402c-be85-82e0ddd92980
Wheatley, Peter
1ac43860-3628-4b04-a26a-f4a3a2fb89d6
Inight, Keith, Gaensicke, Boris, Blondel, Dominic, Boyd, David, Ashley, Richard, Knigge, Christian, Long, Knox, Marsh, Tom, McCleery, Jack, Scaringi, Simone, Steeghs, Danny, Thorstensen, John, Vanmunster, Tonny and Wheatley, Peter
(2021)
ASAS J071404+7004.3 -- a close, bright nova-like cataclysmic variable with gusty winds.
Monthly Notices of the Royal Astronomical Society, 510 (3), .
(doi: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.
Text
2109.14514v2
- Author's Original
More information
Published date: 16 December 2021
Keywords:
astro-ph.SR, astro-ph.HE
Identifiers
Local EPrints ID: 471725
URI: http://eprints.soton.ac.uk/id/eprint/471725
ISSN: 1365-2966
PURE UUID: 413bf7d6-228e-40e3-a7c2-afff607a83d6
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Date deposited: 17 Nov 2022 17:33
Last modified: 16 Mar 2024 23:18
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Contributors
Author:
Keith Inight
Author:
Boris Gaensicke
Author:
Dominic Blondel
Author:
David Boyd
Author:
Richard Ashley
Author:
Knox Long
Author:
Tom Marsh
Author:
Jack McCleery
Author:
Simone Scaringi
Author:
Danny Steeghs
Author:
John Thorstensen
Author:
Tonny Vanmunster
Author:
Peter Wheatley
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