Koen, Chris2013-10-162013-10-162011Koen, C. (2011). On the nature of the variable star UNSW-V-760. Monthly Notices of the Royal Astronomical Society, 411(2): 813–8250035-8711http://hdl.handle.net/10566/765The results of multicolour photometric monitoring over several nights of the probable X-ray source UNSW-V-760 are presented. Drawing on both present and past observations, it is shown that the star is multiperiodic and that all the variability can probably be explained by two non-sinusoidal periodicities with periods of 0.276 and 0.198 d. Possible causes (binarity, rotation and oscillation) of the variations are discussed and it is concluded that pulsation must play a role. A classification in the range K1Vke–K3Vke is derived from two low-dispersion spectra. Curiously, the pulsation periods are closer to what is expected for a K giant star, but the amplitudes are two orders of magnitude larger than those seen in K giants.enCopyright Oxford University Press. This file may be freely used for educational purposes, as long as it is not altered in any way. Acknowledgement of the authors and the source is required.Stars: individual: UNSW-V-760Stars: variables: generalArticle