Related papers: Late Superhumps in WZ Sge-Type Dwarf Novae

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae

We systematically surveyed period variations of superhumps in SU UMa-type dwarf novae based on newly obtained data and past publications. In many systems, the evolution of superhump period are found to be composed of three distinct stages:…

Solar and Stellar Astrophysics · Physics 2017-06-07 Taichi Kato , Akira Imada , Makoto Uemura , Daisaku Nogami , Hiroyuki Maehara , Ryoko Ishioka , Hajime Baba , Katsura Matsumoto , Hidetoshi Iwamatsu , Kaori Kubota , Kei Sugiyasu , Yuichi Soejima , Yuuki Moritani , Tomohito Ohshima , Hiroyuki Ohashi , Junpei Tanaka , Mahito Sasada , Akira Arai , Kazuhiro Nakajima , Seiichiro Kiyota , Kenji Tanabe , Kayuyoshi Imamura , Nanae Kunitomi , Kenji Kunihiro , Hiroki Taguchi , Mitsuo Koizumi , Norimi Yamada , Yuichi Nishi , Mayumi Kida , Sawa Tanaka , Rie Ueoka , Hideki Yasui , Koichi Maruoka , Arne Henden , Arto Oksanen , Marko Moilanen , Petri Tikkanen , Mika Aho , Berto Monard , Hiroshi Itoh , Pavol A. Dubovsky , Igor Kudzej , Radka Dancikova , Tonny Vanmunster , Jochen Pietz , Greg Bolt , David Boyd , Peter Nelson , Thomas Krajci , Lewis M. Cook , Ken'ichi Torii , Donn R. Starkey , Jeremy Shears , Lasse-Teist Jensen , Gianluca Masi , Rudolf Novak , Tomas Hynek , Radek Kocian , Lukas Kral , Hana Kucakova , Marek Kolasa , Petr Stastny , Bart Staels

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. VI: The Sixth Year (2013-2014)

Continuing the project described by Kato et al. (2009, PASJ, 61, S395, arXiv:0905.1757), we collected times of superhump maxima for 56 SU UMa-type dwarf novae mainly observed during the 2013-2014 season and characterized these objects. We…

Solar and Stellar Astrophysics · Physics 2015-06-22 Taichi Kato , Pavol A. Dubovsky , Igor Kudzej , Franz-Josef Hambsch , Ian Miller , Tomohito Ohshima , Chikako Nakata , Miho Kawabata , Hirochika Nishino , Kazunari Masumoto , Sahori Mizoguchi , Masayuki Yamanaka , Katsura Matsumoto , Daisuke Sakai , Daiki Fukushima , Minami Matsuura , Genki Bouno , Megumi Takenaka , Shinichi Nakagawa , Ryo Noguchi , Eriko Iino , Roger D. Pickard , Yutaka Maeda , Arne Henden , Kiyoshi Kasai , Seiichiro Kiyota , Hidehiko Akazawa , Kazuyoshi Imamura , Enrique de Miguel , Hiroyuki Maehara , Berto Monard , Elena P. Pavlenko , Kirill Antonyuk , Nikolaj Pit , Oksana I. Antonyuk , Aleksei V. Baklanov , Javier Ruiz , Michael Richmond , Arto Oksanen , Caisey Harlingten , Sergey Yu. Shugarov , Drahomir Chochol , Gianluca Masi , Francesca Nocentini , Patrick Schmeer , Greg Bolt , Peter Nelson , Joseph Ulowetz , Richard Sabo , William N. Goff , William Stein , Raul Michel , Shawn Dvorak , Irina B. Voloshina , Vladimir Metlov , Natalia Katysheva , Vitaly V. Neustroev , George Sjoberg , Colin Littlefield , Bartlomiej Debski , Paulina Sowicka , Marcin Klimaszewski , Malgorzata Curylo , Etienne Morelle , Ivan A. Curtis , Hidetoshi Iwamatsu , Neil D. Butterworth , Maksim V. Andreev , Nikolai Parakhin , Aleksandr Sklyanov , Kazuhiko Shiokawa , Rudolf Novak , Tat'yana R. Irsmambetova , Hiroshi Itoh , Yoshiharu Ito , Kenji Hirosawa , Denis Denisenko , Christopher S. Kochanek , Benjamin Shappee , Krzysztof Z. Stanek , Jose L. Prieto , Koh-ichi Itagaki , Rod Stubbings , Jose Ripero , Eddy Muyllaert , Gary Poyner

WZ Sge-Type Dwarf Novae

We have summarized the current understanding and recently obtained findings about WZ Sge-type dwarf novae. We also reviewed the historical development of the understanding of these objects, provided the modern criteria, and reviewed the…

Solar and Stellar Astrophysics · Physics 2015-09-30 Taichi Kato

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. IV: The Fourth Year (2011-2012)

Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we studied 86 SU UMa-type dwarf novae. We confirmed the general trends such as the relation between period derivatives and orbital periods. There are some systems…

Solar and Stellar Astrophysics · Physics 2015-06-11 Taichi Kato , Franz-Josef Hambsch , Hiroyuki Maehara , Gianluca Masi , Ian Miller , Ryo Noguchi , Chihiro Akasaka , Tomoya Aoki , Hiroshi Kobayashi , Katsura Matsumoto , Shinichi Nakagawa , Takuma Nakazato , Takashi Nomoto , Kazuyuki Ogura , Rikako Ono , Keisuke Taniuchi , William Stein , Arne Henden , Enrique de Miguel , Seiichiro Kiyota , Pavol A. Dubovsky , Igor Kudzej , Kazuyoshi Imamura , Hidehiko Akazawa , Ryosuke Takagi , Yuya Wakabayashi , Minako Ogi , Kenji Tanabe , Joseph Ulowetz , Etienne Morelle , Roger D. Pickard , Tomohito Ohshima , Kiyoshi Kasai , Elena P. Pavlenko , Oksana I. Antonyuk , Aleksei V. Baklanov , Kirill Antonyuk , Denis Samsonov , Nikolaj Pit , Aleksei Sosnovskij , Colin Littlefield , Richard Sabo , Javier Ruiz , Thomas Krajci , Shawn Dvorak , Arto Oksanen , Kenji Hirosawa , William N. Goff , Berto Monard , Jeremy Shears , David Boyd , Irina B. Voloshina , Sergey Yu. Shugarov , Drahomir Chochol , Atsushi Miyashita , Jochen Pietz , Natalia Katysheva , Hiroshi Itoh , Greg Bolt , Maksim V. Andreev , Nikolai Parakhin , Viktor Malanushenko , Fabio Martinelli , Denis Denisenko , Chris Stockdale , Peter Starr , Mike Simonsen , Paul. J. Tristram , Akihiko Fukui , Tamas Tordai , Robert Fidrich , Kevin B. Paxson , Koh-ichi Itagaki , Youichirou Nakashima , Seiichi Yoshida , Hideo Nishimura , Timur V. Kryachko , Andrey V. Samokhvalov , Stanislav A. Korotkiy , Boris L. Satovski , Rod Stubbings , Gary Poyner , Eddy Muyllaert , Vladimir Gerke , Walter MacDonald , Michael Linnolt , Yutaka Maeda , Hubert Hautecler

WZ Sge-type dwarf novae with multiple rebrightenings: MASTER OT J211258.65+242145.4 and MASTER OT J203749.39+552210.3

We report on photometric observations of WZ Sge-type dwarf novae, MASTER OT J211258.65+242145.4 and MASTER OT J203749.39+552210.3 which underwent outbursts in 2012. Early superhumps were recorded in both systems. During superoutburst…

Solar and Stellar Astrophysics · Physics 2015-06-16 Chikako Nakata , Tomohito Ohshima , Taichi Kato , Daisaku Nogami , Gianluca Masi , Enrique de Miguel , Joseph Ulowetz , Colin Littlefield , William N. Goff , Thomas Krajci , Hiroyuki Maehara , William Stein , Richard Sabo , Ryo Noguchi , Rikako Ono , Miho Kawabata , Hisami Furukawa , Katsura Matsumoto , Takehiro Ishibashi , Pavol A. Dubovsky , Igor Kudzej , Shawn Dvorak , Franz-Josef Hambsch , Roger D. Pickard , Etienne Morelle , Eddy Muyllaert , Stefano Padovan , Arne Henden

Unexpected Superoutburst and Rebrightening of AL Comae Berenices in 2015

In 2015 March, the notable WZ Sge-type dwarf nova AL Com exhibited an unusual outburst with a recurrence time of ${\sim}$1.5 yr, which is the shortest interval of superoutbursts among WZ Sge-type dwarf novae. Early superhumps in the…

Solar and Stellar Astrophysics · Physics 2016-02-17 Mariko Kimura , Taichi Kato , Akira Imada , Kai Ikuta , Keisuke Isogai , Pavol A. Dubovsky , Seiichiro Kiyota , Roger D. Pickard , Ian Miller , Elena P. Pavlenko , Aleksei A. Sosnovskij , Shawn Dvorak , Daisaku Nogami

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. III: The Third Year (2010--2011)

Continuing the project described by Kato et al. (2009, PASJ 61, S395, arXiv:0905.1757), we collected times of superhump maxima for 51 SU UMa-type dwarf novae mainly observed during the 2010-2011 season. Although most of the new data for…

Solar and Stellar Astrophysics · Physics 2015-05-30 Taichi Kato , Hiroyuki Maehara , Ian Miller , Tomohito Ohshima , Enrique de Miguel , Kenji Tanabe , Kazuyoshi Imamura , Hidehiko Akazawa , Nanae Kunitomi , Ryosuke Takagi , Mikiha Nose , Franz-Josef Hambsch , Seiichiro Kiyota , Elena P. Pavlenko , Aleksei V. Baklanov , Oksana I. Antonyuk , Denis Samsonov , Aleksei Sosnovskij , Kirill Antonyuk , Maksim V. Andreev , Etienne Morelle , Pavol A. Dubovsky , Igor Kudzej , Arto Oksanen , Gianluca Masi , Thomas Krajci , Roger D. Pickard , Richard Sabo , Hiroshi Itoh , William Stein , Shawn Dvorak , Arne Henden , Shinichi Nakagawa , Ryo Noguchi , Eriko Iino , Katsura Matsumoto , Hiroki Nishitani , Tomoya Aoki , Hiroshi Kobayashi , Chihiro Akasaka , Greg Bolt , Jeremy Shears , Javier Ruiz , Sergey Yu. Shugarov , Drahomir Chochol , Nikolai A. Parakhin , Berto Monard , Kazuhiko Shiokawa , Kiyoshi Kasai , Bart Staels , Atsushi Miyashita , Donn R. Starkey , Yenal Ogmen , Colin Littlefield , Natalia Katysheva , Ivan M. Sergey , Denis Denisenko , Tamas Tordai , Robert Fidrich , Vitaly P. Goranskij , Jani Virtanen , Tim Crawford , Jochen Pietz , Robert A. Koff , David Boyd , Steve Brady , Nick James , William N. Goff , Koh-ichi Itagaki , Hideo Nishimura , Youichirou Nakashima , Seiichi Yoshida , Rod Stubbings , Gary Poyner , Yutaka Maeda , Stanislav A. Korotkiy , Kirill V. Sokolovsky , Seiji Ueda

First detection of the growing humps at the rapidly rising stage of dwarf novae AL Com and WZ Sge

We report on time-series photometric observations in the earliest stages of superoutbursts of the extreme dwarf novae, AL Com and WZ Sge, which started on 2001 May after the 6 years quiescence and on 2001 July after the 23 years quiescence,…

Astrophysics · Physics 2009-11-07 Ryoko Ishioka , Makoto Uemura , Katsura Matsumoto , Hiroyuki Ohashi , Taichi Kato , Gianluca Masi , Rudolf Novak , Jochen Pietz , Brian Martin , Donn Starkey , Seiichiro Kiyota , Arto Oksanen , Marko Moilanen , Lew Cook

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. II: The Second Year (2009-2010)

As an extension of the project in Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 61 SU UMa-type dwarf novae mainly observed during the 2009-2010 season. The newly obtained data confirmed the basic findings…

Solar and Stellar Astrophysics · Physics 2015-05-20 Taichi Kato , Hiroyuki Maehara , Makoto Uemura , Arne Henden , Enrique de Miguel , Ian Miller , Pavol A. Dubovsky , Igor Kudzej , Seiichiro Kiyota , Franz-Josef Hambsch , Kenji Tanabe , Kazuyoshi Imamura , Nanae Kunitomi , Ryosuke Takagi , Mikiha Nose , Hidehiko Akazawa , Gianluca Masi , Shinichi Nakagawa , Eriko Iino , Ryo Noguchi , Katsura Matsumoto , Daichi Fujii , Hiroshi Kobayashi , Kazuyuki Ogura , Sachi Ohtomo , Kousei Yamashita , Hirofumi Yanagisawa , Hiroshi Itoh , Greg Bolt , Berto Monard , Tomohito Ohshima , Jeremy Shears , Javier Ruiz , Akira Imada , Arto Oksanen , Peter Nelson , Tomas L. Gomez , Bart Staels , David Boyd , Irina B. Voloshina , Thomas Krajci , Tim Crawford , Chris Stockdale , Michael Richmond , Etienne Morelle , Rudolf Novak , Daisaku Nogami , Ryoko Ishioka , Steve Brady , Mike Simonsen , Elena P. Pavlenko , Frederick A. Ringwald , Tetsuya Kuramoto , Atsushi Miyashita , Roger D. Pickard , Tomas Hynek , Shawn Dvorak , Rod Stubbings , Eddy Muyllaert

Photometric Analysis of TCP J20171288$+$1156589 -- WZ Sge Type Dwarf Nova with Delayed Ordinary Superhumps Emergence

We present the results of photometric analysis of WZ Sge type dwarf nova TCP J20171288$+$1156589. This object exhibited an outburst with a large amplitude of $>7.9$ magnitudes and was observed for over a month. The photometric evolution of…

Solar and Stellar Astrophysics · Physics 2026-02-24 Alexander Tarasenkov , Sergey Shugarov , Natalia Ikonnikova , Marina Burlak , Sergey Nazarov , Sjoerd Dufoer

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. V: The Fifth Year (2012-2013)

Continuing the project described by Kato et al. (2009a, arXiv:0905.1757), we collected times of superhump maxima for SU UMa-type dwarf novae mainly observed during the 2012-2013 season. We found three objects (V444 Peg, CSS J203937 and…

Solar and Stellar Astrophysics · Physics 2016-04-20 Taichi Kato , Franz-Josef Hambsch , Hiroyuki Maehara , Gianluca Masi , Francesca Nocentini , Pavol A. Dubovsky , Igor Kudzej , Kazuyoshi Imamura , Minako Ogi , Kenji Tanabe , Hidehiko Akazawa , Thomas Krajci , Ian Miller , Enrique de Miguel , Arne Henden , Colin Littlefield , Ryo Noguchi , Takehiro Ishibashi , Rikako Ono , Miho Kawabata , Hiroshi Kobayashi , Daisuke Sakai , Hirochika Nishino , Hisami Furukawa , Kazunari Masumoto , Katsura Matsumoto , Tomohito Ohshima , Chikako Nakata , Satoshi Honda , Kenzo Kinugasa , Osamu Hashimoto , William Stein , Roger D. Pickard , Seiichiro Kiyota , Elena P. Pavlenko , Oksana I. Antonyuk , Aleksei V. Baklanov , Kirill Antonyuk , Denis Samsonov , Nikolaj Pit , Aleksei Sosnovskij , Arto Oksanen , Caisey Harlingten , Jenni Tyyska , Berto Monard , Sergey Yu. Shugarov , Drahomir Chochol , Kiyoshi Kasai , Yutaka Maeda , Kenji Hirosawa , Hiroshi Itoh , Richard Sabo , Joseph Ulowetz , Etienne Morelle , Raul Michel , Genaro Suarez , Nick James , Shawn Dvorak , Irina B. Voloshina , Michael Richmond , Bart Staels , David Boyd , Maksim V. Andreev , Nikolai Parakhin , Natalia Katysheva , Atsushi Miyashita , Kazuhiro Nakajima , Greg Bolt , Stefano Padovan , Peter Nelson , Donn R. Starkey , Denis Buczynski , Peter Starr , William N. Goff , Denis Denisenko , Christopher S. Kochanek , Benjamin Shappee , Krzysztof Z. Stanek , Jose L. Prieto , Koh-ichi Itagaki , Shizuo Kaneko , Rod Stubbings , Eddy Muyllaert , Jeremy Shears , Patrick Schmeer , Gary Poyner , Miguel Rodriguez Marco

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. VII: The Seventh Year (2014-2015)

Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 102 SU UMa-type dwarf novae observed mainly during the 2014-2015 season and characterized these objects. Our project has…

Solar and Stellar Astrophysics · Physics 2015-10-21 Taichi Kato , Franz-Josef Hambsch , Pavol A. Dubovsky , Igor Kudzej , Berto Monard , Ian Miller , Hiroshi Itoh , Seiichiro Kiyota , Kazunari Masumoto , Daiki Fukushima , Hiroki Kinoshita , Kazuki Maeda , Jyunya Mikami , Risa Matsuda , Naoto Kojiguchi , Miho Kawabata , Megumi Takenaka , Katsura Matsumoto , Enrique de Miguel , Yutaka Maeda , Tomohito Ohshima , Keisuke Isogai , Roger D. Pickard , Arne Henden , Stella Kafka , Hidehiko Akazawa , Noritoshi Otani , Sakiko Ishibashi , Minako Ogi , Kenji Tanabe , Kazuyoshi Imamura , William Stein , Kiyoshi Kasai , Tonny Vanmunster , Peter Starr , Elena P. Pavlenko , Oksana I. Antonyuk , Kirill A. Antonyuk , Aleksei A. Sosnovskij , Nikolaj V. Pit , Julia V. Babina , Aleksandr Sklyanov , Rudolf Novak , Arto Oksanen , Shawn Dvorak , Raul Michel , Gianluca Masi , Colin Littlefield , Joseph Ulowetz , Sergey Yu. Shugarov , Polina Yu. Golysheva , Drahomir Chochol , Viktoriia Krushevska , Javier Ruiz , Tamas Tordai , Etienne Morelle , Richard Sabo , Hiroyuki Maehara , Michael Richmond , Natalia Katysheva , Kenji Hirosawa , William N. Goff , Franky Dubois , Ludwig Logie , Steve Rau , Irina B. Voloshina , Maksim V. Andreev , Kazuhiko Shiokawa , Vitaly V. Neustroev , George Sjoberg , Sergey Zharikov , Nick James , Greg Bolt , Tim Crawford , Denis Buczynski , Lewis M. Cook , Christopher S. Kochanek , Benjamin Shappee , Krzysztof Z. Stanek , Jose L. Prieto , Denis Denisenko , Hideo Nishimura , Masaru Mukai , Shizuo Kaneko , Seiji Ueda , Rod Stubbings , Masayuki Moriyama , Patrick Schmeer , Eddy Muyllaert , Jeremy Shears , Robert J. Modic , Kevin B. Paxson

Spectroscopic Observations of WZ Sge-type Dwarf Novae, GW Lib and V455 And in Superoutburst

We carried out intensive spectroscopic observations of two WZ Sge-type dwarf novae, GW Lib, and V455 And during their superoutbursts in 2007, at 6 observatories. The observations covered the whole of both superoutbursts from the very…

Astrophysics · Physics 2008-07-15 D. Nogami , K. Hiroi , Y. Suzuki , Y. Moritani , Y. Soejima , A. Imada , O. Hashimoto , K. Kinugasa , S. Honda , K. Ayani , S. Narusawa , H. Naito , M. Sakamoto , T. Iijima , M. Fujii , N. Narita

V1006 Cygni: Dwarf Nova Showing Three Types of Outbursts and Simulating Some Features of the WZ Sge-Type Behavior

We observed the 2015 July-August long outburst of V1006 Cyg and established this object to be an SU UMa-type dwarf nova in the period gap. Our observations have confirmed that V1006 Cyg is the second established object showing three types…

Solar and Stellar Astrophysics · Physics 2016-02-17 Taichi Kato , Elena P. Pavlenko , Alisa V. Shchurova , Aleksei A. Sosnovskij , Julia V. Babina , Aleksei V. Baklanov , Sergey Yu. Shugarov , Colin Littlefield , Pavol A. Dubovsky , Igor Kudzej , Roger D. Pickard , Keisuke Isogai , Mariko Kimura , Enrique de Miguel , Tamas Tordai , Drahomir Chochol , Yutaka Maeda , Lewis M. Cook , Ian Miller , Hiroshi Itoh

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. VIII: The Eighth Year (2015-2016)

Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 128 SU UMa-type dwarf novae observed mainly during the 2015-2016 season and characterized these objects. The data have…

Solar and Stellar Astrophysics · Physics 2016-07-20 Taichi Kato , Franz-Josef Hambsch , Berto Monard , Tonny Vanmunster , Yutaka Maeda , Ian Miller , Hiroshi Itoh , Seiichiro Kiyota , Keisuke Isogai , Mariko Kimura , Akira Imada , Tamas Tordai , Hidehiko Akazawa , Kenji Tanabe , Noritoshi Otani , Minako Ogi , Kazuko Ando , Naoki Takigawa , Pavol A. Dubovsky , Igor Kudzej , Sergey Yu. Shugarov , Natalia Katysheva , Polina Golysheva , Natalia Gladilina , Drahomir Chochol , Peter Starr , Kiyoshi Kasai , Roger D. Pickard , Enrique de Miguel , Naoto Kojiguchi , Yuki Sugiura , Daiki Fukushima , Eiji Yamada , Yusuke Uto , Taku Kamibetsunawa , Taiki Tatsumi , Nao Takeda , Katsura Matsumoto , Lewis M. Cook , Elena P. Pavlenko , Julia V. Babina , Nikolaj V. Pit , Oksana I. Antonyuk , Kirill A. Antonyuk , Aleksei A. Sosnovskij , Aleksei V. Baklanov , Stella Kafka , William Stein , Irina B. Voloshina , Javier Ruiz , Richard Sabo , Shawn Dvorak , Geoff Stone , Maksim V. Andreev , Sergey V. Antipin , Alexandra M. Zubareva , Anna M. Zaostrojnykh , Michael Richmond , Jeremy Shears , Franky Dubois , Ludwig Logie , Steve Rau , Siegfried Vanaverbeke , Andrei Simon , Arto Oksanen , William N. Goff , Greg Bolt , Bartomiej Debski , Christopher S. Kochanek , Benjamin Shappee , Krzysztof Z. Stanek , Jose L. Prieto , Rod Stubbings , Eddy Muyllaert , Mitsutaka Hiraga , Tsuneo Horie , Patrick Schmeer , Kenji Hirosawa

2021 superoutburst of WZ Sge-type dwarf nova V627 Pegasi lacks an early superhump phase

Superoutbursts in WZ Sge-type dwarf novae (DNe) are characterized by both early superhumps and ordinary superhumps originating from the 2:1 and 3:1 resonances, respectively. However, some WZ Sge-type DNe show a superoutburst lacking early…

Solar and Stellar Astrophysics · Physics 2023-04-26 Yusuke Tampo , Taichi Kato , Naoto Kojiguchi , Sergey Yu. Shugarov , Hiroshi Itoh , Katsura Matsumoto , Momoka Nakagawa , Yukitaka Nishida , Michael Richmond , Masaaki Shibata , Junpei Ito , Gulchehra Kokhirova , Firuza Rakhmatullaeva , Tamás Tordai , Seiichiro Kiyota , Javier Ruiz , Pavol A. Dubovsky , Tomáš Medulka , Elena P. Pavlenko , Oksana I. Antonyuk , Aleksei A. Sosnovskij , Aleksei V. Baklanov , Viktoriia Krushevska , Tonny Vanmunster , Stephen M. Brincat , Karol Petrik , Charles Galdies , Franz-Josef Hambsch , Yutaka Maeda , Daisaku Nogami

Photometric Studies of a WZ Sge-Type Dwarf Nova Candidate, ASAS160048-4846.2

We report on our time-resolved CCD photometry during the 2005 June superoutburst of a WZ Sge-type dwarf nova candidate, ASAS 160048-4846.2. The ordinary superhumps underwent a complex evolution during the superoutburst. The superhump…

Astrophysics · Physics 2015-05-13 Yuichi Soejima , Akira Imada , Daisaku Nogami , Taichi Kato , L. A. G. Berto Monard

First Detection of Two Superoutbursts during Rebrightening Phase of a WZ Sge-type Dwarf Nova: TCP J21040470+4631129

We report photometric and spectroscopic observations and analysis of the 2019 superoutburst of TCP J21040470+4631129. This object showed a 9-mag superoutburst with early superhumps and ordinary superhumps, which are the features of WZ…

Solar and Stellar Astrophysics · Physics 2020-06-03 Yusuke Tampo , Kojiguchi Naoto , Keisuke Isogai , Taichi Kato , Mariko Kimura , Yasuyuki Wakamatsu , Daisaku Nogami , Tonny Vanmunster , Tamás Tordai , Hidehiko Akazawa , Felipe Mugas , Taku Nishiumi , Víctor J. S. Béjar , Kiyoe Kawauchi , Nicolas Crouzet , Noriharu Watanabe , Núria Casasayas-Barris , Yuka Terada , Akihiko Fukui , Norio Narita , Enric Palle , Motohide Tamura , Nobuhiko Kusakabe , Roi Alonso , Hiroshi Itoh , Kirill Sokolovsky , Brandon McIntyre , Jesse Leahy-McGregor , Stephen M. Brincat , Pavol A. Dubovsky , Tomáš Medulka , Igor Kudzej , Elena P. Pavlenko , Kirill A. Antonyuk , Nikolaj V. Pit , Oksana I. Antonyuk , Julia V. Babina , Aleksei V. Baklanov , Aleksander S. Sklyanov , Alexandra M. Zubareva , Aleksandr A. Belinski , Alexandr V. Dodin , Marina A. Burlak , Natalia P. Ikonnikova , Egor O. Mishin , Sergey A. Potanin , Ian Miller , Michael Richmond , Roger D. Pickard , Charles Galdies , Masanori Mizutani , Kenneth Menzies , Geoffrey Stone , Javier Ruiz

ASASSN-16eg: New candidate of long-period WZ Sge-type dwarf nova

We report on our photometric observations of the 2016 superoutburst of ASASSN-16eg. This object showed a WZ Sge-type superoutburst with prominent early superhumps with a period of 0.075478(8) d and a post-superoutburst rebrightening. During…

Solar and Stellar Astrophysics · Physics 2017-09-25 Yasuyuki Wakamatsu , Keisuke Isogai , Mariko Kimura , Taichi Kato , Tonny Vanmunster , Geoff Stone , Tamás Tordai , Michael Richmond , Ian Miller , Arto Oksanen , Hiroshi Itoh , Hidehiko Akazawa , Seiichiro Kiyota , Enrique de Miguel , Elena P. Pavlenko , Kirill A. Antonyuk , Oksana I. Antonyuk , Vitaly V. Neustroev , George Sjoberg , Pavol A. Dubovsky , Roger D. Pickard , Daisaku Nogami

Extensive photometry of the WZ Sge-type dwarf nova V455 And (HS2331+3905): detection of negative superhumps and coherence features of the short-period oscillations

We report the results of photometry of the WZ Sge-type dwarf nova V455 And. Observations were obtained over 19 nights in 2013 and 2014. The total duration of the observations was 96 h. We clearly detected three coherent oscillations with…

Solar and Stellar Astrophysics · Physics 2015-07-15 V. P. Kozhevnikov