2000/03/24 by M. Uemura, Makoto Uemura, Taichi Kato +28 · 2 citations
Engineering · Physics and Astronomy · #Accretion disc #Amplitude #Astronomical Observations and Instrumentation #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Dwarf nova #Gamma-ray bursts and supernovae #Light curve #Optics #Orbital period #Photometry (optics) #Physics #Stars #White dwarf #astro-ph
paper · pdf · doi:10.1093/pasj/52.2.l9
5 pages, 3 figures, accepted by PASJ letter
arxiv created 2000/03/24 · openalex publication_date 2000/04/01 · arxiv updated 2015/06/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We discovered a new deeply eclipsing SU UMa-type dwarf nova, IY UMa, which experienced a superoutburst in 2000 January. Our monitoring revealed two distinct outbursts, which suggest a superoutburst interval of ∼ 800 d, or its half, and an outburst amplitude of 5.4 mag. From time-series photometry during the superoutburst, we determined a superhump and orbital period of 0.07588 d and 0.0739132 d, respectively.