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Browsing by Subject "Estels binaris"

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    • Periodic motion in perturbed elliptic oscillators revisited 

      Corbera Subirana, Montserrat; Llibre, Jaume; Valls, C. (2016)
      We analytically study the Hamiltonian system in R4 with Hamiltonian H = 1 2 p2 x +p2 y + 1 2 ω2 1x2 +ω2 2y2 − εV (x, y) being V (x, y) = −(x2y + ax3) with a ∈ R, where ε is a small ...

    • Photometric study of the binary system NN Del 

      Gómez-Forrellad, J.M.; Sánchez-Bajo, F.; Corbera Subirana, Montserrat; García-Melendo, E.; Vidal-Sainz, J. (2003)
      We present the results of the differential V light curve analysis of NN Del. We show that NN Del is an EA eclipsing binary system with a period of 99.27 days and a highly eccentric orbit. Photometric ...