Year: 2003
Type: article
Abstract: After 10 years of quiescence, HV Vir underwent a superoutburst in 2002 January. We report on time-series observations that clearly reveal the period change of ordinary superhumps during the superoutburst. We derived a mean superhump period of 0.058260 d and a positive period derivative of $7 \times 10^{-5}$. These results are in good agreement with a value obtained from the 1992 superoutburst. We also detected early superhumps, which were not clearly recognized in the past outburst, and a possible rebrightening. Both of them are common characteristics of WZ Sge-type stars.
Authors: Ryoko Ishioka, Taichi Kato, Makoto Uemura, Jochen Pietz, Tonny Vanmunster, Tom Krajci, Ken’ichi Torii, Kenji Tanabe, Seiichiro Kiyota, Kenzo Kinugasa, Gianluca Masi, Koichi Morikawa, Lewis M. Cook, Patrick Schmeer, Hitoshi Yamaoka
Institutions: Kyoto University, Théologie catholique et sciences religieuses, Centre d'Études Internationales de la Propriété Intellectuelle, RIKEN, Okayama University of Science, Variable Star Observers League in Japan, Gunma Astronomical Observatory, University of Rome Tor Vergata, Center for Astrophysics Harvard & Smithsonian, Kyushu University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2019749330