Volume 365, Number 3, January IV 2001
|Page(s)||508 - 513|
|Section||Interstellar and circumstellar matter|
|Published online||15 January 2001|
The detection of a 1.4-h period in RW Ursa Minoris -candidate for shortest recorded orbital period nova
Dept. of Physics, Keele University, Keele, Staffordshire ST5 5BG, UK
2 School of Physics and Astronomy and the Wise Observatory, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University, Tel Aviv 69978, Israel
Corresponding author: A. Retter, email@example.com
Accepted: 19 October 2000
CCD photometry of the classical nova RW UMi during 10 nights in 1995 through an R filter and 14 nights in 1997 through a "clear"filter, with the 1-m Wise telescope yields a periodic modulation in the light curve with the period d and a semi amplitude of 0.025 mag. We discuss several explanations for the periodicity, and suggest that it is likely to be the orbital period of the binary system or a superhump period. RW UMi is thus a candidate for the classical nova with the shortest known orbital period.
Key words: individual: RW UMi / novae, cataclysmic variables / binaries: close / accretion, accretion discs / white dwarfs
© ESO, 2001
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