Discovery of a New Deeply Eclipsing SU UMa-Type Dwarf Nova, IY UMa (= TmzV 85)
[摘要] WediscoveredanewdeeplyeclipsingSUUMa-typedwarfnova,IYUMa,whichexperiencedasuperoutburstin2000January.Ourmonitoringrevealedtwodistinctoutbursts,whichsuggestasuperoutburstintervalof∼800d,oritshalf,andanoutburstamplitudeof5.4mag.Fromtime-seriesphotometryduringthesuperoutburst,wedeterminedasuperhumpandorbitalperiodof0.07588dand0.0739132d,respectively.
[发布日期] [发布机构]
[效力级别] [学科分类] 天文学(综合)
[关键词] "accretion disks";"binaries: eclipsing";"stars: cataclysmic variables";"stars: individual (IY UMa)" [时效性]
