Publications in refereed journals (ADS, Google Scholar, Web of Science)


Submitted:


Accepted or in press:

97. Käpylä, P. J. 2024, "Convective scale and subadiabatic layers in simulations of rotating compressible convection," Astron. Astrophys. (in press), (pdf, arXiv)



Published:

96. Käpylä, P. J., Browning, M.K., Brun, A.S., Guerrero, G., & Warnecke, J. 2023, "Simulations of solar and stellar dynamos and their theoretical interpretation," Space Science Reviews, 219, 58 (pdf, arXiv, ADS)

95. Ortiz-Rodríguez, C. A., Käpylä, P. J., Navarrete, F. H., Schleicher D. R. G., Mennickent, R. E., Hidalgo, J. P., & Toro, B. 2023, "Simulations of dynamo action in slowly rotating M dwarfs: Dependence on dimensionless parameters," Astron. Astrophys., 678, 82 (pdf, arXiv, ADS)

94. Navarrete, F. H., Käpylä, P. J., Schleicher D. R. G., & Banerjee, R. 2023, "Effects of the centrifugal force on stellar dynamo simulations ," Astron. Astrophys., 678, 9 (pdf, arXiv, ADS)

93. Waidele, M., Roth, M., Singh, N. K., & Käpylä, P. J. 2023, "On Strengthening of the Solar f-mode Prior to Active Region Emergence Using the Fourier-Hankel Analysis," Solar Phys., 298, 30 (pdf, arXiv, ADS)

92. Käpylä, P. J. 2023, "Transition from anti-solar to solar-like differential rotation: Dependence on Prandtl number," Astron. Astrophys., 669, 98 (pdf, arXiv, ADS)

91. Navarrete, F. H., Schleicher, D. R. G., Käpylä, P. J., Ortiz-Rodríguez, C. A., & Banerjee, R. 2022, "Origin of eclipsing time variations in Post-Common-Envelope binaries: role of the centrifugal force," Astron. Astrophys., 667, 164 (pdf, arXiv, ADS)

90. Käpylä, P. J. & Singh, N. K. 2022, "Turbulent Prandtl number from isotropically forced turbulence," J. Fluid Mech. Rapids, 952, R1 (pdf, arXiv, ADS, doi)

89. Navarrete, F. H., Käpylä, P. J., Schleicher, D. R. G., Ortiz, C. A., & Banerjee, R. 2022, "Origin of eclipsing time variations: contributions of different modes of the dynamo-generated magnetic field," Astron. Astrophys., 663, 90 (pdf, arXiv, ADS)

88. Reiners, A., Shulyak, D., Käpylä, P. J., Ribas, I., Nagel, E., Zechmeister, M., Caballero, J. A., Shan, Y., Fuhrmeister, B., Quirrenbach, A., Amado, P. J., Montes, D., Jeffers, S. V., Azzaro, M., Béjar, V. J. S., Chaturvedi, P., Henning, Th., Kürster, M., Pallé, E. 2022, "Magnetism, rotation, and nonthermal emission in cool stars - Average magnetic field measurements in 292 M dwarfs," Astron. Astrophys., 662, 41 (pdf, arXiv, ADS)

87. Käpylä, P. J. 2022, "Solar-like dynamos and rotational scaling of cycles from star-in-a-box simulations," Astrophys. J. Lett., 931, L17 (Animation related to Fig. 2) (pdf, arXiv, ADS)

86. Barekat, A., Käpylä, M. J., Käpylä, P. J., Gilson, E. P., & Ji, H. 2021, "Generation of mean flows in rotating anisotropic turbulence: The case of solar near-surface shear layer," Astron. Astrophys., 655, A79 (pdf, arXiv, ADS)

85. Käpylä, P. J. 2021, "Prandtl number dependence of stellar convection: Flow statistics and convective energy transport," Astron. Astrophys., 655, A78 (pdf, arXiv, ADS)

84. Käpylä, P. J. 2021, "Star-in-a-box simulations of fully convective stars," Astron. Astrophys., 651, A66 (pdf, arXiv, ADS)

83. Fouxon, I., Feinberg, J., Käpylä, P. J., & Mond, M. 2021, "Reynolds number dependence of Lyapunov exponents of turbulence and fluid particles," Phys. Rev. E, 103, 033110 (pdf, arXiv, ADS, doi)

82. The Pencil Code Collaboration: Brandenburg, A., Johansen, A., Bourdin, P. A., Dobler, W., Lyra, W., Rheinhardt, M., Bingert, S., Haugen, N. E. L., Mee, A., Gent, F., Babkovskaia, N., Yang, C.-C., Heinemann, T., Dintrans, B., Mitra, D., Candelaresi, S., Warnecke, J., Käpylä, P. J., Schreiber, A., Chatterjee, P., Käpylä, M. J., Li, X.-Y., Krüger, J., Aarnes, J. R., Sarson, G. R., Oishi, J. S., Schober, J., Plasson, R., Sandin, C., Karchniwy, E., Rodrigues, L. F. S., Hubbard, A., Guerrero, G., Snodin, A., Losada, I. R., Pekkilä, J., & Qian, C. 2021, "The Pencil Code, a modular MPI code for partial differential equations and particles: multipurpose and multiuser-maintained," Journal of Open Source Software 6, 2807 (arXiv, ADS, doi)

81. Rüdiger G., Küker, M., & Käpylä, P. J. 2020, "Mean-field electrodynamics of fluids with fluctuating electric conductivity," J. Plasma Phys., 86, 905860318 (pdf, arXiv, ADS)

80. Käpylä, P. J., Rheinhardt, M., Brandenburg A., & Käpylä, M. J. 2020, "Turbulent viscosity and effective magnetic Prandtl number from simulations of isotropically forced turbulence," Astron. Astrophys., 636, 93 (pdf, arXiv, ADS)

79. Lehtinen, J. J., Spada, F., Käpylä, M. J., Olspert, N. & Käpylä, P. J. 2020, "Common dynamo scaling in slowly rotating young and evolved stars," Nature Astronomy, 4, 658 (pdf, arXiv, ADS)

78. Singh, N. K., Raichur, H., Käpylä, M. J., Rheinhardt, M., Brandenburg A., & Käpylä, P. J. 2020, "f-mode strengthening from a localized bipolar subsurface magnetic field," Geophys. Astrophys. Fluid Dyn., 114, 196 (pdf, arXiv, ADS)

77. Käpylä, P. J., Gent, F. A., Olspert, N., Käpylä, M. J., & Brandenburg A. 2020, "Sensitivity to luminosity, centrifugal force, and boundary conditions in spherical shell convection," Geophys. Astrophys. Fluid Dyn., 114, 8 (pdf, arXiv, ADS)

76. Navarrete, F. H., Schleicher, D. R. G.; Käpylä, P. J., Schober, J., Völschow, M., & Mennickent, R. E. 2020, "Magneto-hydrodynamical origin of eclipsing time variations in post-common-envelope binaries for solar mass secondaries," Monthly Not. Roy. Astron. Soc., 491, 1043 (pdf, arXiv, ADS)

75. Käpylä, P. J. 2019, "Effects of small-scale dynamo and compressibility on the Λ effect," Astron. Nachr., 340, 744 (pdf, arXiv, ADS)

74. Viviani, M., Käpylä, M. J., Warnecke, J., Käpylä, P. J., & Rheinhardt, M. 2019, "Stellar dynamos in the transition regime: multiple dynamo modes and anti-solar differential rotation," Astrophys. J., 886, 21 (pdf, arXiv, ADS)

73. Käpylä, P. J. 2019, "Overshooting in simulations of compressible convection," Astron. Astrophys., 631, A122 (pdf, arXiv, ADS)

72. Rüdiger, G., Küker, M., Käpylä, P. J., & Strassmeier, K.G. 2019, "Antisolar differential rotation of slowly rotating cool stars", Astron. Astrophys., 630, A109 (pdf, arXiv, ADS)

71. Käpylä, P. J., Viviani, M., Käpylä, M. J., Brandenburg, A. & Spada, F. 2019, "Effects of a subadiabatic layer on convection and dynamos in spherical wedge simulations," Geophys. Astrophys. Fluid Dyn., 113, 149 (pdf, arXiv, ADS)

70. Käpylä, P. J. 2019, "Magnetic and rotational quenching of the Λ effect," Astron. Astrophys., 622, 195 (pdf, arXiv, ADS)

69. Viviani, M., Warnecke, J., Käpylä, M. J., Käpylä, P. J., Olspert, N., Cole-Kodikara, E. M., Lehtinen, J. J., & Brandenburg, A. 2018, "Transition from axi- to nonaxisymmetric dynamo modes in spherical convection models of solar-like stars," Astron. Astrophys., 616, 160 (pdf, arXiv, ADS)

68. Singh, N. K., Käpylä, M. J., Brandenburg, A., Käpylä, P. J., Lagg, A., & Virtanen, I. 2018, "Bihelical spectrum of solar magnetic helicity and its evolution," Astrophys. J., 863, 182 (pdf, arXiv, ADS)

67. Käpylä, P. J., Käpylä, M. J., &, Brandenburg A. 2018, "Small-scale dynamos in simulations of stratified turbulent convection," Astron. Nachr., 339, 127 (pdf, arXiv, ADS)

66. Bushby, P. J., Käpylä, P. J., Masada, Y., Brandenburg, A., Favier, B., Guervilly, C., & Käpylä, M. J. 2018, "Large-scale dynamos in rapidly rotating plane layer convection," Astron. Astrophys., 612, 97 (pdf, arXiv, ADS)

65. Warnecke, J., Rheinhardt, M., Tuomisto, S., Käpylä, P. J., Käpylä, M. J., & Brandenburg, A. 2018, "Turbulent transport coefficients in spherical wedge dynamo simulations of solar-like stars," Astron. Astrophys., 609, A51 (pdf, arXiv, ADS)

64. Käpylä, P. J., Rheinhardt, M., Brandenburg, A., Arlt, R., Käpylä, M. J., Lagg, A., Olspert, N., & Warnecke, J. 2017, "Extended subadiabatic layer in simulations of overshooting convection," Astrophys. J. Lett., 845, L23 (pdf, arXiv, ADS)

63. Pekkilä, J., Väisälä, M., Käpylä, M., Käpylä, P. J., & Anjum, O. 2017, "Methods for compressible fluid simulation on GPUs using high-order finite differences," Comp. Phys. Comm., 217, 11 (doi, arXiv, ADS)

62. Käpylä, P. J., Käpylä, M. J., Olspert, N., Warnecke, J., & Brandenburg, A. 2017, "Convection-driven spherical shell dynamos at varying Prandtl numbers," Astron. Astrophys., 599, A4 (pdf, arXiv, ADS)

61. Warnecke, J., Käpylä, P. J., Käpylä, M. J., & Brandenburg, A. 2016, "Influence of a coronal envelope as a free boundary to global convective dynamo simulations," Astron. Astrophys., 596, A115 (pdf, arXiv, ADS)

60. Cole, E., Brandenburg, A., Käpylä, P. J., & Käpylä, M. J. 2016, "Robustness of oscillatory α2 dynamos in spherical wedges," Astron. Astrophys., 593, 134 (pdf, arXiv, ADS)

59. Käpylä, M. J., Käpylä, P. J., Olspert, N., Brandenburg, A., Warnecke, J., Karak, B. B., & Pelt, J. 2016, "Multiple dynamo modes as a mechanism for long-term solar activity variations," Astron. Astrophys., 589, A56 (pdf, arXiv, ADS)

58. Käpylä, P. J., Brandenburg, A., Kleeorin, N., Käpylä, M. J., & Rogachevskii, I. 2016, "Magnetic flux concentrations from turbulent stratified convection," Astron. Astrophys., 588, A150 (pdf, arXiv, ADS)

57. Karak, B. B., Käpylä, P. J., Käpylä, M. J., Brandenburg, A., Olspert, N., & Pelt, J. 2015, "Magnetically controlled stellar differential rotation near the transition from solar to anti-solar profiles," Astron. Astrophys., 576, A26 (pdf, arXiv, ADS)

56. Brandenburg, A., Hubbard, A., & Käpylä, P. J. 2015, "Dynamical quenching with non-local alpha and downward pumping," Astron. Nachr., 336, 91 (pdf, arXiv, ADS)

55. Snellman, J. E., Käpylä, P. J., Käpylä, M. J., Rheinhardt, M., & Dintrans, B. 2015, "Testing turbulent closure models with convection simulations," Astron. Nachr., 336, 32 (pdf, arXiv, ADS)

54. Warnecke, J., Käpylä, P. J., Käpylä, M. J., & Brandenburg, A. 2014, "Cause of equatorward migration in global convective dynamo simulations," Astrophys. J. Lett., 796, L12 (pdf, arXiv, ADS)

53. Karak, B. B., Rheinhardt, M., Brandenburg, A., Käpylä, P. J., & Mantere, M. J.. 2014, "Quenching and anisotropy of hydromagnetic turbulent transport," Astrophys. J., 795, 16 (pdf, arXiv, ADS)

52. Käpylä, P. J., Käpylä, M. J., & Brandenburg, A. 2014, "Confirmation of bistable stellar differential rotation profiles," Astron. Astrophys., 570, A43 (pdf, arXiv, ADS)

51. Väisälä, M. S., Brandenburg, A., Mitra, D., Käpylä, P. J., & Mantere, M. J. 2014, "Quantifying the effect of turbulent magnetic diffusion on the growth rate of the magneto-rotational instability," Astron. Astrophys., 567, 139 (pdf, arXiv, ADS)

50. Cole, E., Käpylä, P. J., Mantere, M. J., & Brandenburg, A. 2014, "Azimuthal dynamo wave in spherical shell convection," Astrophys. J. Lett., 780, L22 (pdf, arXiv, ADS)

49. Warnecke, J., Käpylä, P. J., Mantere, M. J., & Brandenburg, A. 2013, "Solar-like differential rotation in a convective dynamo with a coronal envelope", Astrophys. J., 778, 141 (pdf, arXiv, ADS)

48. Käpylä, P. J., Mantere, M. J., Cole, E., Warnecke, J., & Brandenburg, A. 2013, "Effects of strong stratification on equatorward dynamo wave propagation," Astrophys. J., 778, 41 (pdf, arXiv, ADS)

47. Käpylä, P. J., Mantere, M. J., & Brandenburg, A. 2013, "Oscillatory large-scale dynamos from Cartesian convection simulations," Geophys. Astrophys. Fluid Dyn., 107, 244 (pdf, arXiv, ADS)

46. Brandenburg, A., Gressel, O., Käpylä, P. J., Kleeorin, N., Mantere, M. J., & Rogachevskii, I. 2013, "New scaling for the alpha effect in slowly rotating turbulence," Astrophys. J., 762, 127 (pdf, arXiv, ADS)

45. Warnecke, J., Käpylä, P. J., Mantere, M. J., & Brandenburg, A. 2012, "Ejections of magnetic structures above a spherical wedge driven by a convective dynamo with differential rotation," Solar Phys., 280, 299 (pdf, arXiv, ADS)

44. Käpylä, P. J., Mantere, M. J., & Brandenburg, A. 2012, "Cyclic magnetic activity due to turbulent convection in spherical wedge geometry," Astrophys. J. Lett., 755, L22 (pdf, arXiv, ADS)

43. Snellman, J.E., Rheinhardt, M., Käpylä, P. J., Mantere, M. J., & Brandenburg, A. 2012, "Mean-field closure parameters for passive scalar turbulence," Physica Scripta, 86, 018406 (pdf, arXiv, ADS)

42. Käpylä, P. J., Brandenburg, A., Kleeorin, N., Mantere, M. J., & Rogachevskii, I. 2012, "Negative effective magnetic pressure in turbulent convection," Monthly Not. Roy. Astron. Soc., 422, 2465 (pdf, arXiv, ADS)

41. Snellman, J.E., Brandenburg, A., Käpylä, P. J., & Mantere, M.J. 2012, "Verification of Reynolds stress parameterizations from simulations," Astron. Nachr., 333, 78 (pdf, arXiv, ADS)

40. Käpylä, P. J., Mantere, M.J., & Brandenburg, A. 2011, "Effects of stratification in spherical shell convection," Astron. Nachr., 332, 883 (pdf, arXiv, ADS)

39. Mantere, M.J., Käpylä, P. J., & Hackman, T. 2011, "Dependence of the large-scale vortex instability on latitude, stratification and domain size," Astron. Nachr., 332, 876 (pdf, arXiv, ADS)

38. Rogachevskii, I., Kleeorin, N., Käpylä, P. J., & Brandenburg, A. 2011, "Pumping velocity in homogeneous helical turbulence with shear," Phys. Rev. E, 84, 056314 (pdf, arXiv, ADS)

37. Käpylä, P. J., Mantere, M. J., & Hackman, T. 2011, "Starspots due to large-scale vortices in rotating turbulent convection," Astrophys. J., 742, 34 (pdf, arXiv, ADS)

36. Guerrero, G. & Käpylä, P. J., 2011, "Dynamo action and magnetic buoyancy in convection simulations with vertical shear," Astron. Astrophys., 533, A40 (pdf, arXiv, ADS)

35. Käpylä, P. J., Mantere, M. J., Guerrero, G., Brandenburg, A., & Chatterjee, P. 2011, "Reynolds stress and heat flux in spherical shell convection," Astron. Astrophys., 531, A162 (pdf, arXiv, ADS)

34. Käpylä, P. J. & Korpi, M. J. 2011, "Magnetorotational instability driven dynamos at low magnetic Prandtl numbers," Monthly Not. Roy. Astron. Soc., 413, 901 (pdf, arXiv, ADS)

33. Käpylä, P. J. 2011, "On global solar dynamo simulations," Astron. Nachr., 332, 43 (pdf, arXiv, ADS)

32. Brandenburg, A., Chatterjee, P., Del Sordo, F., Hubbard, A., Käpylä, P. J., & Rheinhardt, M. 2010, "Turbulent transport in hydromagnetic flows," Physica Scripta, T142, 014028 (pdf, arXiv, ADS)

31. Käpylä, P. J., Korpi, M. J., & Brandenburg, A. 2010, "Open and closed boundaries in large-scale convective dynamos," Astron. Astrophys., 518, A22 (pdf, arXiv, ADS)

30. Mitra, D., Tavakol, R., Käpylä, P. J., & Brandenburg, A. 2010, "Oscillatory migrating magnetic fields in helical turbulence in spherical domains," Astrophys. J. Lett., 719, L1 (pdf, arXiv, ADS)

29. Käpylä, P. J., Brandenburg, A., Korpi, M. J., Snellman, J. E., & Narayan, R. 2010, "Angular momentum transport in convectively unstable shear flows," Astrophys. J., 719, 67 (pdf, arXiv, ADS)

28. Käpylä, P. J., Korpi, M. J., & Brandenburg, A. 2010, "The α effect in rotating convection with sinusoidal shear," Monthly Not. Roy. Astron. Soc., 402, 1458 (pdf, arXiv, ADS)

27. Käpylä, P. J., Korpi, M. J., Brandenburg, A., Mitra, D., & Tavakol, R. 2010, "Convective dynamos in spherical wedge geometry," Astron. Nachr., 331, 73 (pdf, arXiv, ADS)

26. Korpi, M. J., Käpylä, P. J., & Väisälä, M. S. 2010, "Influence of Ohmic diffusion on the excitation and dynamics of MRI," Astron. Nachr., 331, 34 (pdf, arXiv, ADS)

25. Snellman, J. E., Käpylä, P. J., Korpi, M. J., & Liljeström, A. J. 2009, "Reynolds stresses from hydrodynamic turbulence with shear and rotation," Astron. Astrophys., 505, 955 (pdf, arXiv, ADS)

24. Hubbard, A., Del Sordo, F., Käpylä, P. J., & Brandenburg, A. 2009, "The alpha effect with imposed and dynamo-generated magnetic fields," Monthly Not. Roy. Astron. Soc., 398, 1891 (pdf, arXiv, ADS)

23. Käpylä, P. J., Korpi, M. J., & Brandenburg, A. 2009, "Alpha effect and turbulent diffusion from convection," Astron. Astrophys., 500, 633 (pdf, arXiv, ADS)

22. Käpylä, P. J. & Brandenburg, A. 2009, "Turbulent dynamos with shear and fractional helicity," Astrophys. J., 699, 1059 (pdf, arXiv, ADS)

21. Käpylä, P. J., Korpi, M. J., & Brandenburg, A. 2009, "Large-scale dynamos in rigidly rotating turbulent convection", Astrophys. J., 697, 1153 (pdf, arXiv, ADS)

20. Mitra, D., Käpylä, P. J., Tavakol, R., & Brandenburg, A. 2009 "Alpha effect and diffusivity in helical turbulence with shear", Astron. Astrophys., 495, 1 (pdf, arXiv, ADS)

19. Käpylä, P. J., Mitra, D., & Brandenburg, A. 2009 "Numerical study of large-scale vorticity generation in shear-flow turbulence," Phys. Rev. E, 79, 016302 (pdf, arXiv, ADS)

18. Liljeström, A. J., Korpi, M. J., Käpylä, P. J., Brandenburg, A., & Lyra, W. 2009 "Turbulent stresses as a function of shear rate in a local disk model," Astron. Nachr., 330, 92 (pdf, arXiv, ADS)

17. Käpylä, P. J., Korpi, M. J., & Brandenburg, A. 2008, "Large-scale dynamos in turbulent convection with shear," Astron. Astrophys., 491, 353 (pdf, arXiv, ADS)

16. Käpylä, P. J. & Brandenburg, A. 2008, "Lambda-effect from forced turbulence simulations," Astron. Astrophys., 488, 9 (pdf, arXiv, ADS)

15. Jouve, L., Brun, A. S., Arlt, R., Brandenburg, A., Dikpati, M., Bonanno, A., Käpylä, P. J., Moss, D., Rempel, M., Gilman, P., Korpi, M. J., & Kosovichev, A. G. 2008, "A solar mean field dynamo benchmark," Astron. Astrophys., 483, 949 (pdf, ADS)

14. Brandenburg, A., Rädler, K.-H., Rheinhardt, M., & Käpylä, P. J. 2008, "Magnetic diffusivity tensor and dynamo effects in rotating and shearing turbulence", Astrophys. J., 676, 740 (pdf, arXiv, ADS)

13. Brandenburg, A., Käpylä, P. J., Mitra, D., Moss, D., & Tavakol, R. 2007, "The helicity constraint in spherical shell dynamos," Astron. Nachr., 328, 1118 (pdf, arXiv, ADS)

12. Käpylä, P. J., & Brandenburg, A. 2007, "Turbulent viscosity and Λ-effect from numerical turbulence models," Astron. Nachr., 328, 1006 (pdf, arXiv, ADS)

11. Brandenburg, A. & Käpylä, P. J. 2007, "Magnetic helicity effects in astrophysical and laboratory dynamos," New Journal of Physics, 9, 305 (pdf, arXiv, ADS)

10. Hupfer, C., Käpylä, P. J., & Stix, M. 2006, "Reynolds stresses and meridional circulation from rotating cylinder simulations," Astron. Astrophys., 459, 935 (pdf, ADS)

9. Käpylä, P. J., Korpi, M. J., & Tuominen, I. 2006, "Solar dynamo models with α-effect and turbulent pumping from local 3D convection calculations," Astron. Nachr., 327, 884 (pdf, arXiv, ADS)

8. Käpylä, P. J., Korpi, M. J., Ossendrijver, M., & Stix, M. 2006, "Magnetoconvection and dynamo coefficients III: α-effect and magnetic pumping in the rapid rotation regime," Astron. Astrophys., 455, 401 (pdf, arXiv, ADS)

7. Käpylä, P. J., Korpi, M. J., Ossendrijver, M., & Tuominen, I. 2006, "Local models of stellar convection III: The Strouhal number," Astron. Astrophys., 448, 433 (pdf, arXiv, ADS)

6. Käpylä, P. J., Korpi, M. J., Stix, M., & Tuominen, I. 2005, "Local models of stellar convection II: Rotation dependence of the mixing-length relations," Astron. Astrophys., 438, 403. (pdf, arXiv, ADS)

5. Hupfer, C., Käpylä, P. J., & Stix, M. 2005, "Reynolds stresses - dependence on latitude," Astron. Nachr., 326, 223 (pdf, ADS)

4. Käpylä, P. J., Korpi, M. J., Ossendrijver, M., & Tuominen, I. 2005, "Estimates of the Strouhal number from numerical models of convection," Astron. Nachr., 326, 186 (pdf, arXiv, ADS)

3. Brandenburg, A., Haugen, N. E. L., Käpylä, P. J., & Sandin, C. 2005, "The problem of small and large scale fields in the solar dynamo," Astron. Nachr., 326, 174 (pdf, arXiv, ADS)

2. Käpylä, P. J., Korpi, M. J., & Tuominen, I. 2004, "Local models of stellar convection: Reynolds stresses and turbulent heat transport," Astron. Astrophys., 422, 793. (pdf, arXiv, ADS)

1. Brandenburg, A., Käpylä, P. J., & Mohammed, A. 2004, "Non-Fickian diffusion and tau-approximation from numerical turbulence," Physics of Fluids, 16, 1020 (pdf, arXiv, ADS)


Conference proceedings

11. Warnecke, J., Käpylä, P. J., Mantere, M. J., & Brandenburg, A.: 2011, "Coronal ejections from convective spherical shell dynamos," in Comparative Magnetic Minima: Characterizing quiet times in the Sun and stars, eds. C. H. Mandrini, Proc. IAUS 286, (in press) (arXiv)

10. Cantiello, M., Braithwaite, J., Brandenburg, A., Del Sordo, F., Käpylä, P. J., & Langer, N.: 2011, "Turbulence and magnetic spots at the surface of hot massive stars,'' in Physics of Sun and Star Spots, eds. D.P. Choudhary & K.G. Strassmeier, Proc. IAUS 273 (in press) (arXiv)

9. Cantiello, M., Braithwaite, J., Brandenburg, A., Del Sordo, F., Käpylä, P. J. & Langer, N. 2011, "3D MHD simulations of subsurface convection in OB stars", in Active OB stars: structure, evolution, mass loss, and critical limits, eds. C. Neiner, G. Wade, G. Meynet, & G. Peters, Proc. IAUS 272, 32 (arXiv, ADS)

8. Brandenburg, A., Käpylä, P. J. & Korpi, M. J., 2011, "From convective to stellar dynamos," in Astrophysical Dynamics: From Stars to Galaxies", eds. N. Brummell, A.S. Brun, M.S. Miesch, & Y. Ponty, Proc. IAUS 271, 279 (arXiv, ADS)

7. Mitra, D., Tavakol, R., Brandenburg, A. & Käpylä, P. J. 2010, "Oscillatory migratory large-scale fields in mean-field and direct simulations", in Solar and Stellar Variability: Impact of Earth and Planets, eds. A.G. Kosovichev, A.H. Andrei & J.-P. Rozelot, Proc. IAUS 264, 197 (ADS)

6. Tuominen, I., Korpi, M. J., Käpylä, P. J., Lindborg, M. & Ilyin, I. 2009, "Stellar nonlinear dynamos: observations and modelling", in Cosmic Magnetic Fields: From Planets, to Stars and Galaxies, eds. K.G. Strassmeier, A.G. Kosovichev, J.E. Beckman, Proc. IAUS 259, 417 (pdf, ADS)

5. Käpylä, P. J., Korpi, M. J., Stix, M. & Tuominen, I. 2006, "Effects of Rotation and Input Energy Flux on Convective Overshooting", in Convection in Astrophysics, eds. F. Kupka, I.W. Roxburgh, K.L. Chan, Proc. IAUS 239, 35 (arXiv, ADS)

4. Ossendrijver, M. & Käpylä, P. J. 2006, "Transport coefficients for solar and stellar dynamos", in Solar activity and its magnetic origin, eds. A.A. Hady, V. Bothmer, Proc. IAUS 233, 3 (pdf, ADS)

3. Brandenburg, A. & Käpylä, P. J. 2006, "Connection between active longitudes and magnetic helicity", in Solar activity: exploration, understanding and prediction, ed. H. Lundstedt, ESA, ESTEC Noordwijk, The Netherlands (in press) (arXiv, ADS)

2. Brandenburg, A., Käpylä, P. J. & Mohammed, A. 2005, "Passive scalar diffusion as a damped wave", in Progress in Turbulence, ed. J. Peinke, A. Kittel, S. Barth, & M. Oberlack, Springer-Verlag, 3 (arXiv, ADS)

1. Brandenburg, A., Sandin, C. & Käpylä, P. J. 2004, "Helical coronal ejections and their role in the solar cycle", in Multi-Wavelength Investigations of Solar Activity, eds. A. V. Stepanov, E. E. Benevolenskaya & A. G. Kosovichev, Proc. IAUS 223, 57 (arXiv, ADS)


Dissertation

PhD dissertation: Local numerical modelling of magnetoconvection and turbulence - implications for mean-field theories (University of Helsinki, 2006) link