Search results

Journal Article (19)

  1. 1.
    Journal Article
    Hackman, T.; Ilyin, I.; Lehtinen, J.; Kochukhov, O.; Käpylä, M. J.; Piskunov, N.; Willamo: Starspot activity of HD199178: Doppler images from 1994-2017. Astronomy and Astrophysics 625 (2019)
  2. 2.
    Journal Article
    Käpylä, P. J.; Viviani, M.; Käpylä, M. J.; Brandenburg, A.; Spada, F.: Effects of a subadiabatic layer on convection and dynamos in spherical wedge simulations. Geophysical and Astrophysical Fluid Dynamics 113 (1-2), pp. 149 - 183 (2019)
  3. 3.
    Journal Article
    Bushby, P.J.; Käpylä, P.J.; Masada, Y.; Brandenburg, A.; Favier, B.; Guervilly, C.; Käpylä, M. J.: Large-scale dynamos in rapidly rotating plane layer convection. Astronomy and Astrophysics 612 (2018)
  4. 4.
    Journal Article
    Käpylä, M. J.; Gent, F. A.; Väisälä, M. S.; Sarson, G. R.: The supernova-regulated ISM: III. Generation of vorticity, helicity, and mean flows. Astronomy and Astrophysics 611 (2018)
  5. 5.
    Journal Article
    Käpylä, P. J.; Käpylä, M. J.; Brandenburg, A.: Small‐scale dynamos in simulations of stratified turbulent convection. Astronomische Nachrichten 339 (2-3), pp. 127 - 133 (2018)
  6. 6.
    Journal Article
    Olspert, N.; Lehtinen, J.; Käpylä, M. J.; Pelt, J.; Grigorievskiy, A.: Estimating activity cycles with probabilistic methods: II. The Mount Wilson Ca H&K data. Astronomy and Astrophysics 619 (2018)
  7. 7.
    Journal Article
    Olspert, N.; Pelt, J.; Käpylä, M. J.; Lehtinen, J.: Estimating activity cycles with probabilistic methods: I. Bayesian generalised Lomb-Scargle periodogram with trend. Astronomy and Astrophysics 615 (2018)
  8. 8.
    Journal Article
    Singh, N. K.; Käpylä, M. J.; Brandenburg, A.; Käpylä, P. J.; Lagg, A.; Virtanen, I.: Bihelical Spectrum of Solar Magnetic Helicity and Its Evolution. The Astrophysical Journal 863 (2) (2018)
  9. 9.
    Journal Article
    Väisälä, M.S.; Gent, F.A.; Juvela, M.; Käpylä, M. J.: The supernova-regulated ISM: IV. A comparison of simulated polarization with Planck observations. Astronomy and Astrophysics 614 (2018)
  10. 10.
    Journal Article
    Viviani, M.; Warnecke, J.; Käpylä, M. J.; Käpylä, P. J.; Olspert, N.; Cole-Kodikara, E. M.; Lehtinen, J.; Brandenburg, A.: Transition from axi- to nonaxisymmetric dynamo modes in spherical convection models of solar-like stars. Astronomy and Astrophysics 616 (2018)
  11. 11.
    Journal Article
    Warnecke, J.; Rheinhardt, M.; Tuomisto, S.; Käpylä, P. J.; Käpylä, M. J.; Brandenburg, A.: Turbulent transport coefficients in spherical wedge dynamo simulations of solar-like stars. Astronomy and Astrophysics 609 (2018)
  12. 12.
    Journal Article
    Gent, F.A.; Käpylä, M. J.; Warnecke, J.: Long-term variations of turbulent transport coefficients in a solarlike convective dynamo simulation. Astronomische Nachrichten 338 (8), pp. 885 - 895 (2017)
  13. 13.
    Journal Article
    Käpylä, P. J.; Käpylä, M. J.; Olspert, N.; Warnecke, J.; Brandenburg, A.: Convection-driven spherical shell dynamos at varying Prandtl numbers. Astronomy and Astrophysics 599, A4 (2017)
  14. 14.
    Journal Article
    Käpylä, P. J.; Rheinhardt, M.; Brandenburg, A.; Arlt, R.; Käpylä, M. J.; Lagg, A.; Olspert, N.; Warnecke, J.: Extended Subadiabatic Layer in Simulations of Overshooting Convection. Astrophysical Journal Letters 845, L23 (2017)
  15. 15.
    Journal Article
    Pekkilä, J.; Väisälä, M. S.; Käpylä, M. J.; Käpylä, P. J.; Anjum, O.: Methods for compressible fluid simulation on GPUs using high-order finite differences. Computer Physics Communications 217, pp. 11 - 22 (2017)
  16. 16.
    Journal Article
    Pelt, J.; Käpylä, M. J.; Olspert, N.: Method of frequency dependent correlations: investigating the variability of total solar irradiance. Astronomy and Astrophysics 600, A9 (2017)
  17. 17.
    Journal Article
    Tanskanen, E.I.; Snekvik, K.; Slavin, J.A.; Pérez-Suárez, D.; Viljanen, A.; Goldstein, M.; Käpylä, M. J.; Hynönen, R.; Häkkinen, L.V.T.; Mursula, K.: Solar Cycle Occurrence of Alfvénic Fluctuations and Related Geo-Efficiency. Journal of Geophysical Research: Space Physics 122 (10), pp. 9848 - 9857 (2017)
  18. 18.
    Journal Article
    Cole, E.; Brandenburg, A.; Käpylä, P. J.; Käpylä, M. J.: Robustness of oscillatory alpha-squared dynamos in spherical wedges. Astronomy and Astrophysics 593, A134 (2016)
  19. 19.
    Journal Article
    Warnecke, J.; Käpylä, P. J.; Käpylä, M. J.; Brandenburg, A.: Influence of a coronal envelope as a free boundary to global convective dynamo simulations. Astronomy and Astrophysics 596, A115 (2016)

Conference Paper (1)

  1. 20.
    Conference Paper
    Olspert, N.; Käpylä, M. J.; Pelt, J.: Method for estimating cycle lengths from multidimensional time series: Test cases and application to a massive "in silico" dataset. In: 2016 IEEE International Conference on Big Data (Big Data), pp. 3214 - 3223. 2016 IEEE International Conference on Big Data (Big Data) , Washington, DC, December 05, 2016 - December 08, 2016. (2016)
Go to Editor View