Related papers: ASASSN-24hd; a dwarf nova bridging WZ Sge-type and…

TESS and ground-based observations of WZ Sge-type dwarf novae in outburst

Dwarf nova (DN) superoutbursts are accompanied by superhumps, which change their periods and profiles over a superoutburst. We present the TESS and ground-based observations of nine WZ Sge-type DNe and candidates in superoutburst. In TCP…

Solar and Stellar Astrophysics · Physics 2025-11-07 Y. Tampo , N. Kojiguchi , K. Isogai , D. Nogami , H. Itoh , F. -J. Hambsch , K. Matsumoto , R. Matsumura , D. Fujii , T. Tordai , Y. Sano , B. Monard , P. A. Dubovsky , T. Medulka , D. A. H. Buckley , N. Rawat , S. B. Potter , A. van Dyk , P. J. Groot , P. Woudt , S. Kiyota , G. Bolt , T. Vanmunster , J. Pietz , P. Starr , S. Y. Shugarov , K. Kasai , K. Menzies , S. M. Brincat , E. P. Pavlenko , A. Baklanov , J. Ito , T. Kato

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

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

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. IX: The Ninth Year (2016-2017)

Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 127 SU UMa-type dwarf novae observed mainly during the 2016--2017 season and characterized these objects. We provide updated…

Solar and Stellar Astrophysics · Physics 2017-10-11 Taichi Kato , Keisuke Isogai , Franz-Josef Hambsch , Tonny Vanmunster , Hiroshi Itoh , Berto Monard , Tamaas Tordai , Mariko Kimura , Yasuyuki Wakamatsu , Seiichiro Kiyota , Ian Miller , Peter Starr , Kiyoshi Kasai , Sergey Yu. Shugarov , Drahomir Chochol , Natalia Katysheva , Anna M. Zaostrojnykh , Matej Sekeras , Yuliana G. Kuznyetsova , Eugenia S. Kalinicheva , Polina Golysheva , Viktoriia Krushevska , Yutaka Maeda , Pavol A. Dubovsky , Igor Kudzej , Elena P. Pavlenko , Kirill A. Antonyuk , Nikolaj V. Pit , Aleksei A. Sosnovskij , Oksana I. Antonyuk , Aleksei V. Baklanov , Roger D. Pickard , Naoto Kojiguchi , Yuki Sugiura , Shihei Tei , Kenta Yamamura , Katsura Matsumoto , Javier Ruiz , Geoff Stone , Lewis M. Cook , Enrique de Miguel , Hidehiko Akazawa , William N. Goff , Etienne Morelle , Stella Kafka , Colin Littlefield , Greg Bolt , Franky Dubois , Stephen M. Brincat , Hiroyuki Maehara , Takeshi Sakanoi , Masato Kagitani , Akira Imada , Irina B. Voloshina , Maksim V. Andreev , Richard Sabo , Michael Richmond , Tony Rodda , Peter Nelson , Sergey Nazarov , Nikolay Mishevskiy , Gordon Myers , Denis Denisenko , Krzysztof Z. Stanek , Joseph V. Shields , Christopher S. Kochanek , Thomas W. -S. Holoien , Benjamin Shappee , Jose L. Prieto , Koh-ichi Itagaki , Koichi Nishiyama , Fujio Kabashima , Rod Stubbings , Patrick Schmeer , Eddy Muyllaert , Tsuneo Horie , Jeremy Shears , Gary Poyner , Masayuki Moriyama

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

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

ASASSN-16dt and ASASSN-16hg: Promising Candidates for a Period Bouncer

We present optical photometry of superoutbursts in 2016 of two WZ Sge-type dwarf novae (DNe), ASASSN-16dt and ASASSN-16hg. Their light curves showed a dip in brightness between the first plateau stage with no ordinary superhumps (or early…

Solar and Stellar Astrophysics · Physics 2018-05-02 Mariko Kimura , Keisuke Isogai , Taichi Kato , Kenta Taguchi , Yasuyuki Wakamatsu , Franz-Josef Hambsch , Berto Monard , Gordon Myers , Shawn Dvorak , Peter Starr , Stephen M. Brincat , Enrique de Miguel , Joseph Ulowetz , Hiroshi Itoh , Geoff Stone , Daisaku Nogami

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. X: The Tenth Year (2017)

Continuing the project described by Kato et al. (2009, PASJ, 61, S395, arXiv/0905.1757), we collected times of superhump maxima for 102 SU UMa-type dwarf novae observed mainly during the 2017 season and characterized these objects. WZ…

Solar and Stellar Astrophysics · Physics 2020-02-19 Taichi Kato , Keisuke Isogai , Yasuyuki Wakamatsu , Franz-Josef Hambsch , Hiroshi Itoh , Tamas Tordai , Tonny Vanmunster , Pavol A. Dubovsky , Igor Kudzej , Tomas Medulka , Mariko Kimura , Ryuhei Ohnishi , Berto Monard , Elena P. Pavlenko , Kirill A. Antonyuk , Nikolaj V. Pit , Oksana I. Antonyuk , Julia V. Babina , Aleksei V. Baklanov , Aleksei A. Sosnovskij , Roger D. Pickard , Ian Miller , Yutaka Maeda , Enrique de Miguel , Stephen M. Brincat , Domenico Licchelli , Lewis M. Cook , Sergey Yu. Shugarov , Anna M. Zaostrojnykh , Drahomir Chochol , Polina Golysheva , Natalia Katysheva , Alexandra M. Zubareva , Geoff Stone , Kiyoshi Kasai , Peter Starr , Colin Littlefield , Seiichiro Kiyota , Maksim V. Andreev , Alexandr V. Sergeev , Javier Ruiz , Gordon Myers , Andrii O. Simon , Volodymyr V. Vasylenko , Francisco Soldan , Yenal Ogmen , Kazuhiro Nakajima , Peter Nelson , Gianluca Masi , Kenneth Menzies , Richard Sabo , Greg Bolt , Shawn Dvorak , Krzysztof Z. Stanek , Joseph V. Shields , Christopher S. Kochanek , Thomas W. -S. Holoien , Benjamin Shappee , Jose L. Prieto , Tadashi Kojima , Hideo Nishimura , Shizuo Kaneko , Shigehisa Fujikawa , Rod Stubbings , Eddy Muyllaert , Gary Poyner , Masayuki Moriyama , Hiroyuki Maehara , Patrick Schmeer , Denis Denisenko

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

Third Nearest WZ Sge-Type Dwarf Nova candidate ASASSN-14dx Classified on the Basis of Gaia Data Release 2

ASASSN-14dx showed an extraordinary outburst whose features are the small outburst amplitude (~ 2.3 mag) and long duration (> 4 years). Because we found a long observational gap of 123 d before the outburst detection, we propose that the…

Solar and Stellar Astrophysics · Physics 2019-01-25 Keisuke Isogai , Taichi Kato , Akira Imada , Tomohito Ohshima , Naoto Kojiguchi , Ryuhei Ohnishi , Franz-Josef Hambsch , Berto Monard , Seiichiro Kiyota , Hideo Nishimura , Daisaku Nogami

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

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

Analysis of TESS observations of V844 Her during the 2020 superoutburst

I analyzed Transiting Exoplanet Survey Satellite (TESS) observations of the 2020 superoutburst of the SU~UMa-type dwarf nova V844 Her. This object showed "textbook" superhump stages A, B and C confirmed by modern satellite observations. The…

Solar and Stellar Astrophysics · Physics 2022-05-12 Taichi Kato

Superoutburst of WZ Sge-type Dwarf Nova Below the Period Minimum: ASASSN-15po

We report on a superoutburst of a WZ Sge-type dwarf nova (DN), ASASSN-15po. The light curve showed the main superoutburst and multiple rebrightenings. In this outburst, we observed early superhumps and growing (stage A) superhumps with…

Solar and Stellar Astrophysics · Physics 2016-12-13 Kosuke Namekata , Keisuke Isogai , Taichi Kato , Colin Littlefield , Katsura Matsumoto , Naoto Kojiguchi , Yuki Sugiura , Yusuke Uto , Daiki Fukushima , Taiki Tatsumi , Eiji Yamada , Taku Kamibetsunawa , Enrique de Miguel , William L. Stein , Richard Sabo , Maksim V. Andreev , Etienne Morelle , E. P. Pavlenko , Julia V. Babina , Alex V. Baklanov , Kirill A. Antonyuk , Okasana I. Antonyuk , Aleksei A. Sosnovskij , Sergey Yu. Shugarov , Polina Yu. Golysheva , Natalia G. Gladilina , Ian Miller , Vitaly V. Neustroev , Vahram Chavushyan , Jose R. Valdes , George Sjoberg , Yutaka Maeda , Hiroshi Itoh , Gianluca Masi , Raul Michel , Pavol A. Dubovsky , Seiichiro Kiyota , Tamas Tordai , Arto Oksanen , Javier Ruiz , Daisaku Nogami

ASASSN-18fk: A new WZ Sge-type dwarf nova with multiple rebrightenings and a new candidate for a superhumping intermediate polar

We present the result of a multi-longitude campaign on the photometric study of the dwarf nova ASASSN-18fk during its superoutburst in 2018. It was observed with 18 telescopes at 15 sites during ~70 nights within a three-month interval.…

Solar and Stellar Astrophysics · Physics 2019-07-02 E. Pavlenko , K. Niijima , P. Mason , N. Wells , A. Sosnovskij , K. Antonyuk , A. Simon , N. Pit , C. Littlefield , H. Itoh , S. Kiyota , T. Tordai , P. Dubovsky , T. Vanmunster , G. Stone , T. Kato , A. Sergeev , V. Godunova , E. Lyumanov , O. Antonyuk , A. Baklanov , Ju. Babina , K. Isogai , Ya. Romanyuk , V. Troianskyi , V. Kashuba

Discovery of a Promissing Candidate of WZ Sge-Type Dwarf Novae, ASAS 160048-4846.2: Evidence for Double-Peaked Humps

We report on time-resolved CCD photometry during the 2005 June outburst of a dwarf nova, ASAS160048-4846.2. The observed light curves unambiguously showed embryonic humps with a period of 0.063381(41) days, after which genuine superhumps…

Astrophysics · Physics 2015-06-24 Akira Imada , L. A. G. Berto Monard

Investigation of superhumps in SU UMa-type dwarf novae based on the observations of TESS

We report the superhumps analysis of seven SU UMa-type dwarf novae based on the observations of Transiting Exoplanet Survey Satellite (TESS). Superhumps are seen during superoutbursts of SU UMa-type dwarf novae. The month-long data sets of…

Solar and Stellar Astrophysics · Physics 2024-05-21 Wei Liu , Shengbang Qian

Discovery of a new dwarf nova, TSS J022216.4+412259.9: WZ Sge-type dwarf novae breaking the shortest superhump period record

We report on the time-resolved CCD photometry of a newly discovered variable star, TSS J022216.4+412259.9 during the outburst in 2005 November-December brightening. The obtained light curves unambiguously showed 0.2-0.3 mag modulations,…

Astrophysics · Physics 2015-06-24 Akira Imada , Kaori Kubota , Taichi Kato , Daisaku Nogami , Hiroyuki Maehara , Kazuhiro Nakajima , Makoto Uemura , Ryoko Ishioka

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

The Recently-Discovered Dwarf Nova System ASAS J002511+1217.2: A New WZ Sagittae Star

The cataclysmic variable ASAS J002511+1217.2 was discovered in outburst by the All-Sky Automated Survey in September 2004, and intensively monitored by AAVSO observers through the following two months. Both photometry and spectroscopy…

Astrophysics · Physics 2009-11-11 M. R. Templeton , R. Leaman , P. Szkody , A. Henden , L. Cook , D. Starkey , A. Oksanen , M. Koppelman , D. Boyd , P. R. Nelson , T. Vanmunster , R. Pickard , N. Quinn , R. Huziak , M. Aho , R. James , A. Golovin , E. Pavlenko , R. I. Durkee , T. R. Crawford , G. Walker , P. Paakkonen