NGTS and HST insights into the long period modulation in GW Librae

P. Chote,B. T. Gaensicke,J. McCormac,A. Aungwerojwit,D. Bayliss,M. R. Burleigh, S. L. Casewell, Ph. Eigmueller,S. Gill,M. R. Goad,J. J. Hermes,J. S. Jenkins, A. S. Mukadam,S. Poshyachinda,L. Raynard, D. E. Reichart, P. Szkody,O. Toloza,R. G. West,P. J. Wheatley

Monthly Notices of the Royal Astronomical Society（2021）

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摘要

Light curves of the accreting white dwarf pulsator GW Librae spanning a 7.5-month period in 2017 were obtained as part of the Next-Generation Transit Survey. This data set comprises 787 h of photometry from 148 clear nights, allowing the behaviour of the long (hours) and short-period (20 min) modulation signals to be tracked from night to night over a much longer observing baseline than has been p...

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关键词

stars: dwarf novae,stars: individual: GW Librae,stars: variables: general,white dwarfs

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