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ASAS J071404+7004.3 -- a close, bright nova-like with gusty winds

ASAS J071404+7004.3 -- a close, bright nova-like with gusty winds
ASAS J071404+7004.3 -- a close, bright nova-like with gusty winds
Despite being bright ($V=12$) 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 Telescope together with $\textit{Swift}$ X-ray and ultraviolet observations. We combined these with $\textit{TESS}$ photometry and find a period of 3.27h and a mass transfer rate of $4-9 \times 10^{-9} M_{sun}/yr$. 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 $\textit{Gaia}$ Hertzsprung-Russell diagram.
astro-ph.SR, astro-ph.HE
0035-8711
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
Vanmunster, Tonny
8b344f0b-403d-402c-be85-82e0ddd92980
Wheatley, Peter
1ac43860-3628-4b04-a26a-f4a3a2fb89d6
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
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, Vanmunster, Tonny and Wheatley, Peter (2021) ASAS J071404+7004.3 -- a close, bright nova-like with gusty winds. Monthly Notices of the Royal Astronomical Society.

Record type: Article

Abstract

Despite being bright ($V=12$) 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 Telescope together with $\textit{Swift}$ X-ray and ultraviolet observations. We combined these with $\textit{TESS}$ photometry and find a period of 3.27h and a mass transfer rate of $4-9 \times 10^{-9} M_{sun}/yr$. 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 $\textit{Gaia}$ Hertzsprung-Russell diagram.

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More information

Published date: 29 September 2021
Additional Information: Being submitted to MNRAS. 19 pages, 15 figures
Keywords: astro-ph.SR, astro-ph.HE

Identifiers

Local EPrints ID: 452043
URI: http://eprints.soton.ac.uk/id/eprint/452043
ISSN: 0035-8711
PURE UUID: 6d858a63-1d48-4389-a956-98a19a737474

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Date deposited: 09 Nov 2021 17:33
Last modified: 21 Nov 2021 22:28

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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: Tonny Vanmunster
Author: Peter Wheatley

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