Researchers in Statistics and Population Studies
Permanent URI for this community
Browse
Browsing by Subject "Catalina Sky Survey (CSS)"
Now showing 1 - 1 of 1
Results Per Page
Sort Options
Item Multicolour time series photometry of the T Tauri star CVSO 30(Oxford University Press, 2015) Koen, ChrisFive consecutive runs of at least five hours, and two shorter runs, of V(RI)C time series photometry of CVSO 30 are presented. No evidence could be seen for planetary transits, previously claimed in the literature for this star. The photometry described in this paper, as well as earlier observations, can be modelled by two non-sinusoidal periodicities of 8 and 10.8 h (frequencies 3 and 2.23 d−1) or their 1 d−1 aliases. The possibility is discussed that star-spots at different latitudes of a differentially rotating star is responsible for the brightness modulations. The steep wavelength dependence of the variability amplitudes is best described by hot star-spots.