The period-gap cataclysmic variable CzeV404 Her: A link between SW Sex and SU UMa systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00548106" target="_blank" >RIV/68378271:_____/21:00548106 - isvavai.cz</a>
Alternative codes found
RIV/67985815:_____/21:00548106 RIV/00216208:11320/21:10438663 RIV/47813059:19630/21:A0000155
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202140958" target="_blank" >https://doi.org/10.1051/0004-6361/202140958</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202140958" target="_blank" >10.1051/0004-6361/202140958</a>
Alternative languages
Result language
angličtina
Original language name
The period-gap cataclysmic variable CzeV404 Her: A link between SW Sex and SU UMa systems
Original language description
We present a new study of the eclipsing cataclysmic variable CzeV404 Her (P-orb = 0.098 d) that is located in the period gap. We found that the system has a massive white dwarf M-WD = 1.00(2) M-circle dot, a mass ratio of q = 0.16, and a relatively hot secondary with an effective temperature T-2 = 4100(50) K. The system inclination is i = 78.8 degrees. The accretion disk spreads out to the tidal limitation radius and has an extended hot spot or line region. The hot spot or line is hotter than the remaining outer part of the disk in quiescence or in intermediate state, but does not stand out completely from the disk flux in (super)outbursts. We claim that this object represents a link between two distinct classes of SU UMa-type and SW Sex-type cataclysmic variables. The accretion flow structure in the disk corresponds to the SW Sex systems, but the physical conditions inside the disk fit the behaviour of SU UMa-type objects.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
1432-0746
Volume of the periodical
652
Issue of the periodical within the volume
August
Country of publishing house
FR - FRANCE
Number of pages
12
Pages from-to
A49
UT code for WoS article
000683516700006
EID of the result in the Scopus database
2-s2.0-85112749335