CVNET
Cataclysmic Variables Network
ACTIVITY AT A GLANCE
Last updated 15:55 UT on April 19, 2025
(All objects mentioned in this section are in the International Variable Star Index; additionally, VSX links have been given for selected cataclysmic variables)
'Activity at a Glance' is gleaned from observations reported to AAVSO MyNewsFlash, BAAVSS-Alert, CVnet-Outburst, VSObs-share and VSNET-outburst. We sincerely thank all the observers who contribute timely observations and reports of activity to these email lists.
New outbursts and unusual activity reported in the last 5 days
YYYYMMD
20250419
V503 Cyg
20250418
OY Car
YZ Cnc
CL Pup
SS UMi
DDE 76
20250417
V342 Cen
V485 Cen
GZ Cnc
BI Ori
20250416
DM CMa
HL CMa
SV CMi
WX Hyi
DV TrA
ASASSN-14je
# indicates a noteworthy or unusual activity
: indicates confirmation required
* indicates time-resolved photometry required
CV News
TCP J08374922+0134065: new WZ Sge-type dwarf nova with large early superhump amplitude
VSNET-ALERT 28055
April 7, 2025
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Photometry in support of TESS and Swift Observations of common-envelope post-novae
Active Dates: April 1, 2025 – June 29, 2025
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V1159 Ori coverage needed to monitor for outburst to trigger radio observation
Active Dates: April 1, 2025 – April 15, 2025
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Outburst of LINEAR 23795703 - a CV of uncertain type in UMa
VSNET-ALERT 28053 Kirill Sokolovsky
March 26, 2025
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SS Cyg monitoring requested
April 2, 2024
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Recent Papers on CVs
For new papers on CVs see arxiv.org astro-ph
Updated 10 April, 2025
ASASSN-14dx: A cataclysmic variable harbouring a massive pulsating white dwarf
Pasi Hakala, Ingrid Pelisoli, Boris T. Gaensicke, Pablo Rodriguez-Gil, Thomas R. Marsh, Elme Breedt, John R. Thorstensen, Anna F. Pala
S. Starrfield, M. Bose, C. E. Woodward, C. Iliadis, W. R. Hix, A. Evans, G. Shaw, D. P. K. Banerjee, T. Liimets, K. L. Page, T. R. Geballe, I. Ilyin, I. Perron, R. M. Wagner
GOTO065054+593624: a peculiar dwarf nova identified in real time via Kilonova Seekers
T. L. Killestein, G. Ramsay, M. Kennedy, L. Kelsey, D. Steeghs, S. Littlefair, B. Godson, J. Lyman, M. Pursiainen, B. Warwick, C. Krawczyk, L. K. Nuttall, E. Wickens, S. D. Alexandrov, C. M. da Silva, R. Leadbeater, K. Ackley, M. J. Dyer, F. Jiménez-Ibarra, K. Ulaczyk, D. K. Galloway, V. S. Dhillon, P. O'Brien, K. Noysena, R. Kotak, R. P. Breton, E. Pallé, D. Pollacco, A. Kumar, D. O'Neill, T. Butterley, R. Wilson, S. Mattila, A. Sahu, R. Starling, C. Y. Wang, Q. Liu, A. Li, Z. Dai, H. Feng, W. Yuan, R. Billington, A. G. Bull, S. Gaudenzi, V. Gonano, H. Krawczyk, M. T. Mazzucato, A. Pasqua, J. A. da Silva Campos, M. Torres-Guerrero, N. N. Antonov, S. J. Bean, E.T. Boeneker, S. M. Brincat, G. S. Darlington, F. Dubois, F.-J. Hambsch, D. Messier, A. Oksanen, G. Poyner, F. D. Romanov, I. D. Sharp, T. Tordai, T. Vanmunster, K. Wenzel
Bridging the Gap: OPTICAM Reveals the Hidden Spin of the WZ Sge Star GOTO 065054.49+593624.51
N. Castro Segura, Z. A. Irving, F. M. Vincentelli, D. Altamirano, Y. Tampo, C. Knigge, I. Pelisoli, D. L. Coppejans, N. Rawat, A. Castro, A. Sahu, J. V. Hernández Santisteban, M. Kimura, M. Veresvarska, R. Michel, S. Scaringi, M. Najera
Superoutbursts and Positive Superhumps are Detected During the Standstill in AT Cnc
Qi-Bin Sun, Sheng-Bang Qian, Li-Ying Zhu, Qin-Mei Li Fu-Xing Li, Min-Yu Li, Ping Li
The Rise of Nova V1674 Herculis
Robert M. Quimby, Brian D. Metzger, Ken J. Shen, Allen W. Shafter, Hank Corbett, Madeline Overton
3D physical structure and angular expansion of the remnant of the recurrent nova T Pyx
E. Santamaría, J. A. Toalá, M. A. Guerrero, G. Ramos-Larios, L. Sabin
Discovery of a nova super-remnant cavity surrounding RS Ophiuchi
M. W. Healy-Kalesh, M. J. Darnley, E. J. Harvey, A. M. Newsam
Period bouncers as detached magnetic cataclysmic variables
Matthias R. Schreiber, Diogo Belloni, Jan van Roestel
A trio of month long flares in the nova-like variable V704 And
Gabriella Zsidi, , C. J. Nixon, , T. Naylor, , J. E. Pringle, and K. L. Page
The peculiar ejecta of Nova V1425 Aquilae
C. Tappert, L. Celedón, L. Schmidtobreick
Albert Bruch
The recurrent nova T CrB had prior eruptions observed near December 1787 and October 1217 AD
Bradley E. Schaefer
Recurrent Symbiotic Nova T Coronae Borealis Before Outburst
N.A. Maslennikova, A.M. Tatarnikov, A.A. Tatarnikova, A.V. Dodin, V.I. Shenavrin, M.A. Burlak, S.G. Zheltoukhov, I.A. Strakhov
Symbiotic star T CrB as an extreme SU UMa type dwarf nova
Krystian I lkiewicz, Joanna Miko lajewska, and Kiril A. Stoyanov
A catalogue of cataclysmic variables from 20 years of the Sloan
Digital Sky Survey with new classifications, periods, trends and
Keith Inight, Boris T. Gänsicke, Elmé Breedt, Henry T. Israel, Stuart P. Littlefair,
Christopher J. Manser, Tom R. Marsh, Tim Mulvany, Anna Francesca Pala,
John R. Thorstensen
Bradley E. Schaefer
A magnetic valve at L1 revealed in TESS photometry of the asynchronous polar BY Cam
Paul A. Mason, Colin Littlefield, Lorena C. Monroy, John F. Morales, Pasi Hakala, Peter Garnavich, Paula Szkody, Mark R. Kennedy, Gavin Ramsay, Simone Scaringi
Carlos E. Chavez, Nikolaos Georgakarakos, Andres Aviles, Hector Aceves, Gagik Tovmassian, Sergey Zharikov, J. E. Perez-Leon, Francisco Tamayo
V392 Persei: a γ-ray bright nova eruption from a known dwarf nova
F. J. Murphy-Glaysher, M. J. Darnley, É. J. Harvey, A. M. Newsam, K. L. Page, S. Starrfield, R. M. Wagner, C. E. Woodward, D. M. Terndrup, S. Kafka, T. Arranz Heras, P. Berardi, E. Bertrand, R. Biernikowicz, C. Boussin, D. Boyd, Y. Buchet, M. Bundas, D. Coulter, D. Dejean, A. Diepvens, S. Dvorak, J. Edlin, T. Eenmae, H. Eggenstein, R. Fournier, O. Garde, J. Gout, D. Janzen, P. Jordanov, H. Kiiskinen, D. Lane, R. Larochelle, R. Leadbeater, D. Mankel, G. Martineau, I. Miller, R. Modic, J. Montier, M. Morales Aimar, E. Muyllaert, R. Naves Nogues, D. O'Keeffe, A. Oksanen, M. Pyatnytskyy, R. Rast, B. Rodgers, D. Rodriguez Perez, F. Schorr, E. Schwendeman, S. Shadick, S. Sharpe, F. Soldán Alfaro, T. Sove, G. Stone, T. Tordai, R. Venne, W. Vollmann, M. Vrastak, K. Wenzel
CV artwork courtesy Darren Baskill