2000年6月
Discovery of a new SU UMa-type dwarf nova, V 1028 Cygni
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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- 巻
- 52
- 号
- 3
- 開始ページ
- 429
- 終了ページ
- 436
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1093/pasj/52.3.429
- 出版者・発行元
- OXFORD UNIV PRESS
V-band high-speed CCD photometry of V 1028 Cyg revealed that hump structures existed in the early stage of its 1995 July outburst. We obtained 0.06154 (+/-0.00002)d as the best estimated period of super-humps. We confirmed that this dwarf nova belongs to the SU UMa stars. A re-brightening occurred after the superoutburst, and may be associated with a normal outburst. An analysis of the timings of superhump axima showed clear evidence for an increase of the superhump period (P-dot = P/P) with 7.54 x 10(-6) Only a few stars (AL Com, T Leo, SW UMa, etc.) are reported to have such an increase of the superhump period. At the end of the superoutburst, Ne detected that the amplitude of the superhumps increased considerably. Both of these properties are not typical features of ordinary SU UMa stars. The connection between the WZ Sge-type and the SU UMa-type dwarf novae is briefly discussed.
- リンク情報
- ID情報
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- DOI : 10.1093/pasj/52.3.429
- ISSN : 0004-6264
- eISSN : 2053-051X
- CiNii Articles ID : 10004678185
- Web of Science ID : WOS:000088014000004