A Newly Discovered SU UMa-Type Dwarf Nova, HS 1449+6415

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dc.creatorNogami, D.
dc.creatorEngels, D.
dc.creatorGaensicke, B. T.
dc.creatorPavlenko, E. P.
dc.creatorNovak, R.
dc.creatorReinsch, K.
dc.date2000-08-21
dc.date.accessioned2026-07-07T01:55:00Z
dc.date.available2026-07-07T01:55:00Z
dc.descriptionWe report time-resolved photometric observations of the Hamburg Quasar Survey-selected dwarf nova HS 1449+6415 (= RX J1450.5+6403) during the interval from JD 2451672 to 2451724. During a long outburst with a duration of ~12 days, we detected superhumps with a period of 0.0601(5) d, revealing that this star is an SU UMa star. A short outburst which lasted 3 days was found about 40 days after the onset of the superoutburst. From quiescence observations, we determine an orbital period of 0.05898(2) d. The small outburst amplitude of \~3.5 mag, the short orbital period, and the normal outburst cycle length suggest that HS 1449+6415 is an intermediate object between ER UMa stars with high mass-transfer rates and WZ Sge stars with very low mass-transfer rates.
dc.description5 pages, 6 figures, submitted to A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/0008323
dc.identifierhttp://arxiv.org/abs/astro-ph/0008323
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/1514
dc.subjectAstrophysics
dc.titleA Newly Discovered SU UMa-Type Dwarf Nova, HS 1449+6415
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