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Survey of period variations of superhumps in SU UMa-type dwarf novae. IX. the ninth year (2016-2017)

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dc.contributor.author Kato T.
dc.contributor.author Isogai K.
dc.contributor.author Hambsch F.
dc.contributor.author Vanmunster T.
dc.contributor.author Itoh H.
dc.contributor.author Monard B.
dc.contributor.author Tordai T.
dc.contributor.author Kimura M.
dc.contributor.author Wakamatsu Y.
dc.contributor.author Kiyota S.
dc.contributor.author Miller I.
dc.contributor.author Starr P.
dc.contributor.author Kasai K.
dc.contributor.author Shugarov S.
dc.contributor.author Chochol D.
dc.contributor.author Katysheva N.
dc.contributor.author Zaostrojnykh A.
dc.contributor.author Sekeráš M.
dc.contributor.author Kuznyetsova Y.
dc.contributor.author Kalinicheva E.
dc.contributor.author Golysheva P.
dc.contributor.author Krushevska V.
dc.contributor.author Maeda Y.
dc.contributor.author Dubovsky P.
dc.contributor.author Kudzej I.
dc.contributor.author Pavlenko E.
dc.contributor.author Antonyuk K.
dc.contributor.author Pit N.
dc.contributor.author Sosnovskij A.
dc.contributor.author Antonyuk O.
dc.contributor.author Baklanov A.
dc.contributor.author Pickard R.
dc.contributor.author Kojiguchi N.
dc.contributor.author Sugiura Y.
dc.contributor.author Tei S.
dc.contributor.author Yamamura K.
dc.contributor.author Matsumoto K.
dc.contributor.author Ruiz J.
dc.contributor.author Stone G.
dc.contributor.author Cook L.
dc.contributor.author De Miguel E.
dc.contributor.author Akazawa H.
dc.contributor.author Goff W.
dc.contributor.author Morelle E.
dc.contributor.author Kafka S.
dc.contributor.author Littlefield C.
dc.contributor.author Bolt G.
dc.contributor.author Dubois F.
dc.contributor.author Brincat S.
dc.contributor.author Maehara H.
dc.contributor.author Sakanoi T.
dc.contributor.author Kagitani M.
dc.contributor.author Imada A.
dc.contributor.author Voloshina I.
dc.contributor.author Andreev M.
dc.contributor.author Sabo R.
dc.contributor.author Richmond M.
dc.contributor.author Rodda T.
dc.contributor.author Nelson P.
dc.contributor.author Nazarov S.
dc.contributor.author Mishevskiy N.
dc.contributor.author Myers G.
dc.contributor.author Denisenko D.
dc.contributor.author Stanek K.
dc.contributor.author Shields J.
dc.contributor.author Kochanek C.
dc.contributor.author Holoien T.
dc.contributor.author Shappee B.
dc.contributor.author Prieto J.
dc.contributor.author Itagaki K.
dc.contributor.author Nishiyama K.
dc.contributor.author Kabashima F.
dc.contributor.author Stubbings R.
dc.contributor.author Schmeer P.
dc.contributor.author Muyllaert E.
dc.contributor.author Horie T.
dc.contributor.author Shears J.
dc.contributor.author Poyner G.
dc.contributor.author Moriyama M.
dc.date.accessioned 2018-04-05T07:08:50Z
dc.date.available 2018-04-05T07:08:50Z
dc.date.issued 2017
dc.identifier.issn 0004-6264
dc.identifier.uri http://dspace.kpfu.ru/xmlui/handle/net/129366
dc.description.abstract © The Author 2017. Published by Oxford University Press on behalf of the Astronomical Society of Japan. All rights reserved. Continuing the project described by Kato et al. (2009, PASJ, 61, S395), we collected times of superhump maxima for 127 SU UMa-type dwarf novae observed mainly during the 2016-2017 season and characterized these objects. We provide updated statistics of the relation between the orbital period and the variation of superhumps, the relation between period variations and the rebrightening type in WZ Sge-type objects. We obtained the period minimum of 0.05290(2) d and confirmed the presence of the period gap above the orbital period ∼0.09 d. We note that four objects (NY Her, 1RXS J161659.5+620014, CRTS J033349.8-282244, and SDSS J153015.04+094946.3) have supercycles shorter than 100 d but show infrequent normal outbursts. We consider that these objects are similar to V503 Cyg, whose normal outbursts are likely suppressed by a disk tilt. These four objects are excellent candidates to search for negative superhumps. DDE 48 appears to be a member of ER UMa-type dwarf novae. We identified a new eclipsing SU UMa-type object, MASTER OT J220559.40-341434.9. We observed 21 WZ Sge-type dwarf novae during this interval and report 18 of them in this paper. Among them, ASASSN-16js is a good candidate for a period bouncer. ASASSN-16ia showed a precursor outburst for the first time in a WZ Sge-type superoutburst. ASASSN-16kg, CRTS J000130.5+050624, and SDSS J113551.09+532246.2 are located in the period gap. We have newly obtained 15 orbital periods, including periods from early superhumps.
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. IX. the ninth year (2016-2017)
dc.type Article
dc.relation.ispartofseries-issue 5
dc.relation.ispartofseries-volume 69
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS00046264-2017-69-5-SID85031778819


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