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Spectroscopic and photometric observations of dwarf nova superoutbursts by the 3.8 m telescope Seimei and the Variable Star Network
Publications of the Astronomical Society of Japan ( IF 2.3 ) Pub Date : 2021-04-13 , DOI: 10.1093/pasj/psab036 Yusuke Tampo 1 , Keisuke Isogai 1, 2, 3 , Naoto Kojiguchi 1 , Hiroyuki Maehara 2, 4, 5 , Kenta Taguchi 1 , Taichi Kato 1 , Mariko Kimura 1, 6 , Yasuyuki Wakamatsu 1 , Masaaki Shibata 1 , Daisaku Nogami 1 , Miho Kawabata 1, 2 , Keiichi Maeda 1 , Kosuke Namekata 1, 7 , Soshi Okamoto 1 , Masaaki Otsuka 1, 2 , Umut Burgaz 1, 8 , Shumpei Nagoshi 1 , Hiroshi Itoh 9 , Tonny Vanmunster 10, 11 , Tamás Tordai 12 , Geoffrey Stone 13 , Katsura Matsumoto 14 , Daiti Fujii 14 , Ryota Matsumura 14 , Momoka Nakagawa 14 , Nodoka Takeuchi 14 , Yuki Zenkou 14 , Elena P Pavlenko 15 , Kirill A Antonyuk 15 , Nikolaj V Pit 15 , Oksana I Antonyuk 15 , Julia V Babina 15 , Aleksei V Baklanov 15 , Aleksei A Sosnovskij 15 , Sergey Yu Shugarov 16, 17 , Nataly Katysheva 17 , Drahomír Chochol 16 , Shawn Dvorak 18 , Pavol A Dubovsky 19 , Tomáš Medulka 19 , Igor Kudzej 19 , Seiichiro Kiyota 20 , Alexandra M Zubareva 17, 21 , Alexandr A Belinski 17 , Natalia P Ikonnikova 17 , Marina A Burlak 17 , Yasuo Sano 22, 23 , Masanori Mizutani 5 , Javier Ruiz 24, 25, 26 , Roger D. Pickard 27 , Franz-Josef Hambsch 28, 29, 30 , Sjoerd Dufoer 30 , Stephen M Brincat 31 , Charles Galdies 32 , Kenneth Menzies 33 , Masayuki Moriyama 34 , Mitsutaka Hiraga 35 , Yutaka Maeda 36 , Kenji Hirosawa 37 , Masao Funada 38 , Minoru Yamamoto 39
Publications of the Astronomical Society of Japan ( IF 2.3 ) Pub Date : 2021-04-13 , DOI: 10.1093/pasj/psab036 Yusuke Tampo 1 , Keisuke Isogai 1, 2, 3 , Naoto Kojiguchi 1 , Hiroyuki Maehara 2, 4, 5 , Kenta Taguchi 1 , Taichi Kato 1 , Mariko Kimura 1, 6 , Yasuyuki Wakamatsu 1 , Masaaki Shibata 1 , Daisaku Nogami 1 , Miho Kawabata 1, 2 , Keiichi Maeda 1 , Kosuke Namekata 1, 7 , Soshi Okamoto 1 , Masaaki Otsuka 1, 2 , Umut Burgaz 1, 8 , Shumpei Nagoshi 1 , Hiroshi Itoh 9 , Tonny Vanmunster 10, 11 , Tamás Tordai 12 , Geoffrey Stone 13 , Katsura Matsumoto 14 , Daiti Fujii 14 , Ryota Matsumura 14 , Momoka Nakagawa 14 , Nodoka Takeuchi 14 , Yuki Zenkou 14 , Elena P Pavlenko 15 , Kirill A Antonyuk 15 , Nikolaj V Pit 15 , Oksana I Antonyuk 15 , Julia V Babina 15 , Aleksei V Baklanov 15 , Aleksei A Sosnovskij 15 , Sergey Yu Shugarov 16, 17 , Nataly Katysheva 17 , Drahomír Chochol 16 , Shawn Dvorak 18 , Pavol A Dubovsky 19 , Tomáš Medulka 19 , Igor Kudzej 19 , Seiichiro Kiyota 20 , Alexandra M Zubareva 17, 21 , Alexandr A Belinski 17 , Natalia P Ikonnikova 17 , Marina A Burlak 17 , Yasuo Sano 22, 23 , Masanori Mizutani 5 , Javier Ruiz 24, 25, 26 , Roger D. Pickard 27 , Franz-Josef Hambsch 28, 29, 30 , Sjoerd Dufoer 30 , Stephen M Brincat 31 , Charles Galdies 32 , Kenneth Menzies 33 , Masayuki Moriyama 34 , Mitsutaka Hiraga 35 , Yutaka Maeda 36 , Kenji Hirosawa 37 , Masao Funada 38 , Minoru Yamamoto 39
Affiliation
We present spectroscopic and photometric observations of 17 dwarf-nova superoutbursts obtained by KOOLS-IFU mounted on the 3.8 m telescope Seimei at the Okayama Observatory of Kyoto University and through the Variable Star Network collaboration (VSNET). Our spectroscopic observations for six outbursts were performed within 1 d of their optical peak. 11 objects (TCP J00590972+3438357, ASASSN-19ado, TCP J06073081−0101501, ZTF20aavnpug, ASASSN-19ady, MASTER OT J061642.05+435617.9, TCP J20034647+1335125, ASASSN-20kv, ASASSN-20kw, MASTER OT J213908.79+161240.2, and ASASSN-20mf) were previously unknown systems, and our observations enabled quick classification of their transient type. These results illustrate that the Seimei telescope has the capability to conduct quick follow-up observations of unknown transients. Our photometric observations yielded that 11 of the objects are WZ Sge-type dwarf novae and their candidates, and the other six are SU UMa-type dwarf novae and their candidates. The He ii 4686 Å emission line was clearly detected among ASASSN-19ado, TCP J06073081−0101501 and MASTER OT J213908.79+161240.2, the association of which with a spiral arm structure in an accretion disk has been suggested in previous studies. Our result suggests that a higher-inclination system shows a stronger emission line of He ii 4686 Å, as well as larger-amplitude early superhumps.
中文翻译：
3.8 m 望远镜 Seimei 和变星网络对矮新星超爆发的光谱和光度观测
我们展示了由安装在京都大学冈山天文台的 3.8 m 望远镜 Seimei 上的 KOOLS-IFU 以及通过变星网络合作 (VSNET) 获得的 17 颗矮新星超爆发的光谱和光度观测。我们对六次爆发的光谱观察是在其光学峰值的 1 d 内进行的。11 个对象（TCP J00590972+3438357、ASASSN-19ado、TCP J06073081−0101501、ZTF20aavnpug、ASASSN-19ady、MASTER OT J061642.05+435617.9、TCP J20034647+1335125、ASASSN-20kv、ASASSN-20kv、ASASSN-20034647+1335125、ASASSN-20kv、ASASSN-1 161240.2 和 ASASSN-20mf）是以前未知的系统，我们的观察能够快速分类它们的瞬态类型。这些结果说明晴明望远镜具备对未知瞬变进行快速跟踪观测的能力。我们的光度观测结果表明，其中 11 个天体是 WZ Sge 型矮新星及其候选天体，另外 6 个是 SU UMa 型矮新星及其候选天体。在 ASASSN-19ado、TCP J06073081−0101501 和 MASTER OT J213908.79+161240.2 中清楚地检测到 He ii 4686 Å 发射线，在之前的研究中已经提出了与吸积盘中的螺旋臂结构的关联。我们的结果表明，更高倾角的系统显示出更强的 He ii 4686 发射线，以及更大振幅的早期超级驼峰。在之前的研究中已经提出了它与吸积盘中的螺旋臂结构的关联。我们的结果表明，更高倾角的系统显示出更强的 He ii 4686 发射线，以及更大振幅的早期超级驼峰。在之前的研究中已经提出了它与吸积盘中的螺旋臂结构的关联。我们的结果表明，更高倾角的系统显示出更强的 He ii 4686 发射线，以及更大振幅的早期超级驼峰。
更新日期：2021-04-13
中文翻译：
3.8 m 望远镜 Seimei 和变星网络对矮新星超爆发的光谱和光度观测
我们展示了由安装在京都大学冈山天文台的 3.8 m 望远镜 Seimei 上的 KOOLS-IFU 以及通过变星网络合作 (VSNET) 获得的 17 颗矮新星超爆发的光谱和光度观测。我们对六次爆发的光谱观察是在其光学峰值的 1 d 内进行的。11 个对象（TCP J00590972+3438357、ASASSN-19ado、TCP J06073081−0101501、ZTF20aavnpug、ASASSN-19ady、MASTER OT J061642.05+435617.9、TCP J20034647+1335125、ASASSN-20kv、ASASSN-20kv、ASASSN-20034647+1335125、ASASSN-20kv、ASASSN-1 161240.2 和 ASASSN-20mf）是以前未知的系统，我们的观察能够快速分类它们的瞬态类型。这些结果说明晴明望远镜具备对未知瞬变进行快速跟踪观测的能力。我们的光度观测结果表明，其中 11 个天体是 WZ Sge 型矮新星及其候选天体，另外 6 个是 SU UMa 型矮新星及其候选天体。在 ASASSN-19ado、TCP J06073081−0101501 和 MASTER OT J213908.79+161240.2 中清楚地检测到 He ii 4686 Å 发射线，在之前的研究中已经提出了与吸积盘中的螺旋臂结构的关联。我们的结果表明，更高倾角的系统显示出更强的 He ii 4686 发射线，以及更大振幅的早期超级驼峰。在之前的研究中已经提出了它与吸积盘中的螺旋臂结构的关联。我们的结果表明，更高倾角的系统显示出更强的 He ii 4686 发射线，以及更大振幅的早期超级驼峰。在之前的研究中已经提出了它与吸积盘中的螺旋臂结构的关联。我们的结果表明，更高倾角的系统显示出更强的 He ii 4686 发射线，以及更大振幅的早期超级驼峰。
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