About: Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae

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About: Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We systematically surveyed period variations of superhumps in SU UMa-type dwarf novae based on newly obtained data and past publications. In many systems, the evolution of the superhump period is found to be composed of three distinct stages: an early evolutionary stage with a longer superhump period, a middle stage with systematically varying periods, and a final stage with a shorter, stable superhump period. During the middle stage, many systems with superhump periods of less than 0.08 d show positive period derivatives. We present observational characteristics of these stages and give greatly improved statistics. Contrary to an earlier claim, we found no clear evidence for a variation of period derivatives among different superoutbursts of the same object. We present an interpretation that the lengthening of the superhump period is a result of the outward propagation of an eccentricity wave, which is limited by the radius near the tidal truncation. We interpret that late-stage superhumps are rejuve We systematically surveyed period variations of superhumps in SU UMa-type dwarf novae based on newly obtained data and past publications. In many systems, the evolution of the superhump period is found to be composed of three distinct stages: an early evolutionary stage with a longer superhump period, a middle stage with systematically varying periods, and a final stage with a shorter, stable superhump period. During the middle stage, many systems with superhump periods of less than 0.08 d show positive period derivatives. We present observational characteristics of these stages and give greatly improved statistics. Contrary to an earlier claim, we found no clear evidence for a variation of period derivatives among different superoutbursts of the same object. We present an interpretation that the lengthening of the superhump period is a result of the outward propagation of an eccentricity wave, which is limited by the radius near the tidal truncation. We interpret that late-stage superhumps are rejuve (en)
Title	Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae (en)
skos:prefLabel	Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae (en)
skos:notation	RIV/00216305:26110/09:PU85942!RIV11-MSM-26110___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(1M0579), S
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Novák, Rudolf
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta stavební
http://linked.open...dnocenehoVysledku	344824
http://linked.open...ai/riv/idVysledku	RIV/00216305:26110/09:PU85942
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	accretion, accretion disks, stars: dwarf novae, stars: novae, cataclysmic variables (en)
http://linked.open.../riv/klicoveSlovo	accretion accretion disks cataclysmic variables stars: dwarf novae stars: novae
http://linked.open...odStatuVydavatele	JP - Japonsko
http://linked.open...ontrolniKodProRIV	[B6B89E3D9182]
http://linked.open...i/riv/nazevZdroje	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	99 (xsd:int)
http://linked.open...vavai/riv/projekt	Centre for Integrated Design of Advanced Structures
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	61
http://linked.open...iv/tvurceVysledku	Novák, Rudolf
http://linked.open...ain/vavai/riv/wos	000273307200001
issn	0004-6264
number of pages	221 (xsd:int)
http://localhost/t...ganizacniJednotka	26110

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