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- Title
Survey of period variations of superhumps in SU UMa-type dwarf novae. X. The tenth year (2017).
- 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
- 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.
- Subjects
DWARF novae; CATACLYSMIC variable stars; DWARF stars; ACCRETION disks; TCP/IP
- Publication
Publications of the Astronomical Society of Japan, 2020, Vol 72, Issue 1, pN.PAG
- ISSN
0004-6264
- Publication type
Article
- DOI
10.1093/pasj/psz134