Survey of period variations of superhumps in SU UMa-type dwarf novae. X. The tenth year (2017). (5th February 2020)

• Record Type: Journal Article
• Authors: Kato, Taichi; Isogai, Keisuke; Wakamatsu, Yasuyuki; Hambsch, Franz-Josef; Itoh, Hiroshi; Tordai, Tamás; Vanmunster, Tonny; Dubovsky, Pavol A; Kudzej, Igor; Medulka, Tomáš; Kimura, Mariko; Ohnishi, Ryuhei; Monard, Berto; Pavlenko, Elena P; Antonyuk, Kirill A; Pit, Nikolaj V; Antonyuk, Oksana I; Babina, Julia V; Baklanov, Aleksei V; Sosnovskij, Aleksei A; Pickard, Roger D; Miller, Ian; Maeda, Yutaka; de Miguel, Enrique; Brincat, Stephen M; Licchelli, Domenico; Cook, Lewis M; Shugarov, Sergey Yu; Zaostrojnykh, Anna M; Chochol, Drahomir; Golysheva, Polina; Katysheva, Natalia; Zubareva, Alexandra M; Stone, Geoff; Kasai, Kiyoshi; Starr, Peter; Littlefield, Colin; Kiyota, Seiichiro; Andreev, Maksim V; Sergeev, Alexandr V; Ruiz, Javier; Myers, Gordon; Simon, Andrii O; Vasylenko, Volodymyr V; Soldán, Francisco; Ögmen, Yenal; Nakajima, Kazuhiro; Nelson, Peter; Masi, Gianluca; Menzies, Kenneth; Sabo, Richard; Bolt, Greg; Dvorak, Shawn; Stanek, Krzysztof Z; Shields, Joseph V; Kochanek, Christopher S; Holoien, Thomas W-S; Shappee, Benjamin; Prieto, José L; Kojima, Tadashi; Nishimura, Hideo; Kaneko, Shizuo; Fujikawa, Shigehisa; Stubbings, Rod; Muyllaert, Eddy; Poyner, Gary; Moriyama, Masayuki; Maehara, Hiroyuki; Schmeer, Patrick; Denisenko, Denis;
• Is Part Of: Publications of the Astronomical Society of Japan. Volume 72:Number 1(2020:Feb.)
• Publication Date: 2020-02-05
• Subjects: accretion, accretion disks -- stars: dwarf novae -- stars: novae, cataclysmic variables; Astronomy -- Periodicals; 520.5
• DOI: 10.1093/pasj/psz134
• Languages: English
• ISSNs: 0004-6264

Abstract

Abstract: 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 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 seven 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 a long-lasting phase of stage A superhumps. We also summarize the recent advances in understanding of SU UMa-type and WZ Sge-type dwarf novae.