Now showing items 1-3 of 3

    • Differential rotation in K, G, F and A stars 

      Balona, L.A.; Abedigamba, O.P. (Oxford University Press, 2016)
      Rotational light modulation in Kepler photometry of K-A stars is used to estimate the absolute rotational shear. The rotation frequency spread in 2562 carefully selected stars with known rotation periods is measured using ...
    • Distance moduli of open cluster NGC 6819 from Red Giant Clump stars 

      Abedigamba, O.P.; Balona, L.A.; Medupe, R. (Elsevier, 2016)
      In this paper we study Kepler open cluster NGC 6819 using Kepler data of Red Giant Clump (RGC) single member (SM) stars. The Kepler data spans a period of 4 years starting in 2009. In particular, we derive distance moduli ...
    • KIC 8263801: a clump star in the Kepler open cluster NGC 6866 field? 

      Abedigamba, O.P. (Elsevier, 2016)
      In this paper we study the field of Kepler open cluster NGC 6866 using the data obtained from Kepler mission collected for a period of 4 years. We search for the red clump (RC) stars amongst the red giant (RG) stars showing ...