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Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. X: The Tenth Year (2017)

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arxiv 1911.04645 v2 pith:4OSI3ASQ submitted 2019-11-12 astro-ph.SR

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. X: The Tenth Year (2017)

Taichi Kato , Keisuke Isogai , Yasuyuki Wakamatsu (Kyoto U) , Franz-Josef Hambsch , Hiroshi Itoh , Tamas Tordai , Tonny Vanmunster , Pavol A. Dubovsky
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Igor Kudzej Tomas Medulka Mariko Kimura Ryuhei Ohnishi Berto Monard Elena P. Pavlenko Kirill A. Antonyuk Nikolaj V. Pit Oksana I. Antonyuk Julia V. Babina Aleksei V. Baklanov Aleksei A. Sosnovskij Roger D. Pickard Ian Miller Yutaka Maeda Enrique de Miguel Stephen M. Brincat Domenico Licchelli Lewis M. Cook Sergey Yu. Shugarov Anna M. Zaostrojnykh Drahomir Chochol Polina Golysheva Natalia Katysheva Alexandra M. Zubareva Geoff Stone Kiyoshi Kasai Peter Starr Colin Littlefield Seiichiro Kiyota Maksim V. Andreev Alexandr V. Sergeev Javier Ruiz Gordon Myers Andrii O. Simon Volodymyr V. Vasylenko Francisco Soldan Yenal Ogmen Kazuhiro Nakajima Peter Nelson Gianluca Masi Kenneth Menzies Richard Sabo Greg Bolt Shawn Dvorak Krzysztof Z. Stanek Joseph V. Shields Christopher S. Kochanek Thomas W.-S. Holoien Benjamin Shappee Jose L. Prieto Tadashi Kojima Hideo Nishimura Shizuo Kaneko Shigehisa Fujikawa Rod Stubbings Eddy Muyllaert Gary Poyner Masayuki Moriyama Hiroyuki Maehara Patrick Schmeer Denis Denisenko
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keywords dwarfnovaeobjectsperiodsuperhumpsuma-typesge-typestage
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Continuing the project described by Kato et al. (2009, PASJ, 61, S395, arXiv/0905.1757), we collected times of superhump maxima for 102 SU UMa-type dwarf novae observed mainly during the 2017 season and characterized these objects. WZ Sge-type stars identified in this study are PT And, ASASSN-17ei, ASASSN-17el, ASASSN-17es, ASASSN-17fn, ASASSN-17fz, ASASSN-17hw, ASASSN-17kd, ASASSN-17la, PNV J20205397+2508145 and TCP J00332502-3518565. We obtained new mass ratios for 7 objects using growing superhumps (stage A). ASASSN-17gf is an EI Psc-type object below the period minimum. CRTS J080941.3+171528 and DDE 51 are objects in the period gap and both showed long-lasting phase of stage A superhumps. We also summarized the recent advances in understanding of SU UMa-type and WZ Sge-type dwarf novae.

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