Survey of period variations of superhumps in SU UMa-type dwarf novae. VII. The seventh year (2014-2015)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00086725" target="_blank" >RIV/00216224:14310/15:00086725 - isvavai.cz</a>
Result on the web
<a href="http://arxiv.org/abs/1507.05610" target="_blank" >http://arxiv.org/abs/1507.05610</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/pasj/psv072" target="_blank" >10.1093/pasj/psv072</a>
Alternative languages
Result language
angličtina
Original language name
Survey of period variations of superhumps in SU UMa-type dwarf novae. VII. The seventh year (2014-2015)
Original language description
Continuing the project described by Kato et al. (2009, PASJ, 61, S395), we collected times of superhump maxima for 102 SU UMa-type dwarf novae, observed mainly during the 2014-2015 season, and characterized these objects. Our project has greatly improvedthe statistics of the distribution of orbital periods, which is a good approximation of the distribution of cataclysmic variables at the terminal evolutionary stage, and has confirmed the presence of a periodminimum at a period of 0.053 d and a period spike just above this period. The number density monotonically decreased toward the longer period and there was no strong indication of a period gap. We detected possible negative superhumps in Z Cha. It is possible that normal outbursts are also suppressed by the presence of a disk tilt in this system. There was no indication of enhanced orbital humps just preceding the superoutburst, and this result favors the thermal-tidal disk instability as the origin of superoutbursts.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
ISSN
0004-6264
e-ISSN
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Volume of the periodical
67
Issue of the periodical within the volume
6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
110
Pages from-to
"nestránkováno"
UT code for WoS article
000366859800005
EID of the result in the Scopus database
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