@article{acc3f9ed326a4b2bac4892ba89dffd11,
title = "UGPS J194310+183851: an Unusual Optical and X-ray Faint Cataclysmic Variable?",
abstract = "The growing number of multi-epoch optical and infrared sky surveys are uncovering unprecedented numbers of new variable stars, of an increasing number of types. The short interval between observations in adjacent near-infrared filters in the UKIDSS Galactic Plane Survey (UGPS) allows for the discovery of variability on the time-scale of minutes. We report on the nature of one such object, through the use of optical spectroscopy, time series photometry, and targeted X-ray observations. We propose that UGPS J194310.32+183851.8 is a magnetic cataclysmic variable star of novel character, probably featuring a longer than average spin period and an orbital period likely to be shorter than the period gap (i.e. Porb < 2 h). We reason that the star is likely a member of the short-period intermediate-polar subclass that exists below this period boundary, but with the additional feature that system's spectral energy distribution is fainter and redder than other members of the group.",
keywords = "novae, cataclysmic variables, stars: individual: UGPS J194310.32+183851.8, stars: peculiar, stars: variables: general",
author = "C. Morris and Maccarone, {T. J.} and Lucas, {P. W.} and J. Strader and Britt, {C. T.} and N. Miller and Swihart, {S. J.} and Cooper, {W. J.} and Drew, {J. E.} and Z. Guo",
note = "{\textcopyright}2022 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. This is the final published pdf, which was originally published at https://doi.org/10.1093/mnras/stac1718 Funding Information: We acknowledge the use of public data from the Swift data archive. We also acknowledge the use of the WHT: the William Herschel Telescope and its service programme are operated on the island of La Palma by the Isaac Newton Group of Telescopes in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrof{\'i}sica de Canarias. We would like to thank the operations teams at both facilities for the quick and efficient observations. CM acknowledges support from the UK's Science and Technology Facilities Council (ST/S505419/1). NM and WJC are funded by University of Hertfordshire studentships; furthermore CM, PWL, NM, WJC, ZG, and JED recognize the computing infrastructure provided via STFC grant ST/R000905/1 at the University of Hertfordshire. JS acknowledges support from the P ackard F oundation and National Science Foundation grant AST-1714825. Portions of this work were performed while SJS held a NRC Research Associateship award at the Naval Research Laboratory. Work at the Naval Research Laboratory is supported by NASA DPR S-15633-Y. ZG acknowledges the financial support from ANID (CONICYT) through the FONDECYT project No. 3220029. Publisher Copyright: {\textcopyright} 2022 The Author(s).",
year = "2022",
month = aug,
day = "1",
doi = "10.1093/mnras/stac1718",
language = "English",
volume = "514",
pages = "6002--6010",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "1365-2966",
publisher = "Oxford University Press (OUP)",
number = "4",
}