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Survey of period variations of superhumps in SU UMa-type dwarf novae. VI. The sixth year (2013-2014)

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dc.contributor.author Kato T.
dc.contributor.author Dubovsky P.
dc.contributor.author Kudzej I.
dc.contributor.author Hambsch F.
dc.contributor.author Miller I.
dc.contributor.author Ohshima T.
dc.contributor.author Nakata C.
dc.contributor.author Kawabata M.
dc.contributor.author Nishino H.
dc.contributor.author Masumoto K.
dc.contributor.author Mizoguchi S.
dc.contributor.author Yamanaka M.
dc.contributor.author Matsumoto K.
dc.contributor.author Sakai D.
dc.contributor.author Fukushima D.
dc.contributor.author Matsuura M.
dc.contributor.author Bouno G.
dc.contributor.author Takenaka M.
dc.contributor.author Nakagawa S.
dc.contributor.author Noguchi R.
dc.contributor.author Iino E.
dc.contributor.author Pickard R.
dc.contributor.author Maeda Y.
dc.contributor.author Henden A.
dc.contributor.author Kasai K.
dc.contributor.author Kiyota S.
dc.contributor.author Akazawa H.
dc.contributor.author Imamura K.
dc.contributor.author De Miguel E.
dc.contributor.author Maehara H.
dc.contributor.author Monard B.
dc.contributor.author Pavlenko E.
dc.contributor.author Antonyuk K.
dc.contributor.author Pit N.
dc.contributor.author Antonyuk O.
dc.contributor.author Baklanov A.
dc.contributor.author Ruiz J.
dc.contributor.author Richmond M.
dc.contributor.author Oksanen A.
dc.contributor.author Harlingten C.
dc.contributor.author Shugarov S.
dc.contributor.author Chochol D.
dc.contributor.author Masi G.
dc.contributor.author Nocentini F.
dc.contributor.author Schmeer P.
dc.contributor.author Bolt G.
dc.contributor.author Nelson P.
dc.contributor.author Ulowetz J.
dc.contributor.author Sabo R.
dc.contributor.author Goff W.
dc.contributor.author Stein W.
dc.contributor.author Michel R.
dc.contributor.author Dvorak S.
dc.contributor.author Voloshina I.
dc.contributor.author Metlov V.
dc.contributor.author Katysheva N.
dc.contributor.author Neustroev V.
dc.contributor.author Sjoberg G.
dc.contributor.author Littlefield C.
dc.contributor.author Dębski B.
dc.contributor.author Sowicka P.
dc.contributor.author Klimaszewski M.
dc.contributor.author Curyło M.
dc.contributor.author Morelle E.
dc.contributor.author Curtis I.
dc.contributor.author Iwamatsu H.
dc.contributor.author Butterworth N.
dc.contributor.author Andreev M.
dc.contributor.author Parakhin N.
dc.contributor.author Sklyanov A.
dc.contributor.author Shiokawa K.
dc.contributor.author Novák R.
dc.contributor.author Irsmambetova T.
dc.contributor.author Itoh H.
dc.contributor.author Ito Y.
dc.contributor.author Hirosawa K.
dc.contributor.author Denisenko D.
dc.contributor.author Kochanek C.
dc.contributor.author Shappee B.
dc.contributor.author Stanek K.
dc.contributor.author Prieto J.
dc.contributor.author Itagaki K.
dc.contributor.author Stubbings R.
dc.date.accessioned 2018-09-18T20:01:28Z
dc.date.available 2018-09-18T20:01:28Z
dc.date.issued 2014
dc.identifier.issn 0004-6264
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/135833
dc.description.abstract © The Author 2014. Published by Oxford University Press on behalf of the Astronomical Society of Japan. All rights reserved. Continuing the project undertaken by Kato et al. (2009), we collected times of superhump maxima for 56 SU UMa-type dwarf novae mainly observed during the 2013-2014 season and characterized these objects. We detected negative superhumps in VW Hyi and indicated that the low number of normal outbursts in some supercycles can be interpreted as a result of disk tilt. This finding, combined with the Kepler observation of V1504 Cyg and V344 Lyr, suggests that disk tilt is responsible for modulating the outburst pattern in SU UMa-type dwarf novae. We also studied the deeply eclipsing WZ Sge-type dwarf nova MASTER OT J005740.99+443101.5 and found evidence of a sharp eclipse during the phase of early superhumps. The profile can be reproduced by a combination of the eclipse of the axisymmetric disk and the uneclipsed light source of early superhumps. This finding shows the lack of evidence for a greatly enhanced hot spot during the early stage of WZ Sge-type outburst. We detected growing (stage A) superhumps in MN Dra and give a suggestion that some of SU UMa-type dwarf novae situated near the critical condition of tidal instability may show long-lasting stage A superhumps. The large negative period derivatives reported in such systems can be understood as a result of the combination of stage A and B superhumps. Two WZ Sge-type dwarf novae, AL Com and ASASSN-13ck, showed a long-lasting (plateau-type) rebrightening. In the early phase of their rebrightenings, both objects showed a precursor-like outburst, suggesting that the long-lasting rebrightening is triggered by a precursor outburst.
dc.relation.ispartofseries Publications of the Astronomical Society of Japan
dc.subject Accretion, accretion disks
dc.subject Novae, cataclysmic variables
dc.subject Stars: dwarf novae
dc.title Survey of period variations of superhumps in SU UMa-type dwarf novae. VI. The sixth year (2013-2014)
dc.type Article
dc.relation.ispartofseries-issue 5
dc.relation.ispartofseries-volume 66
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS00046264-2014-66-5-SID84927941013


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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