Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE

Research Output

An Azimuthal dynamo wave in spherical shell convection

Cole, E., Käpylä, P. J., Mantere, M. J. & Brandenburg, A., 2014, In : Astrophysical Journal Letters. 780, 2, 6 p., L22.

Research output: Contribution to journalArticleScientificpeer-review

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21 Citations (Scopus)
88 Downloads (Pure)

Antisolar differential rotation of slowly rotating cool stars

Rüdiger, G., Küker, M., Käpylä, P. J. & Strassmeier, K. G., 1 Oct 2019, In : Astronomy and Astrophysics. 630, p. 1-9 A109.

Research output: Contribution to journalArticleScientificpeer-review

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2 Citations (Scopus)
51 Downloads (Pure)

Bihelical Spectrum of Solar Magnetic Helicity and Its Evolution

Singh, N. K., Käpylä, M. J., Brandenburg, A., Käpylä, P. J., Lagg, A. & Virtanen, I., 20 Aug 2018, In : Astrophysical Journal. 863, 2, p. 1-11 182.

Research output: Contribution to journalArticleScientificpeer-review

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8 Citations (Scopus)
149 Downloads (Pure)

Clustering and dynamic decoupling of dust grains in turbulent molecular clouds

Mattsson, L., Bhatnagar, A., Gent, F. & Villarroel, B., 11 Mar 2019, In : Monthly Notices of the Royal Astronomical Society. 483, 4, p. 5623–5641 19 p.

Research output: Contribution to journalArticleScientificpeer-review

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2 Citations (Scopus)
82 Downloads (Pure)

Common dynamo scaling in slowly rotating young and evolved stars

Lehtinen, J. J., Spada, F., Käpylä, M. J., Olspert, N. & Käpylä, P. J., 1 Jan 2020, In : Nature Astronomy.

Research output: Contribution to journalLetterScientificpeer-review

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1 Citation (Scopus)
29 Downloads (Pure)

Confirmation of bistable stellar differential rotation profiles

Käpylä, P. J., Käpylä, M. J. & Brandenburg, A., 2014, In : Astronomy and Astrophysics. 570, 10 p., A43.

Research output: Contribution to journalArticleScientificpeer-review

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54 Citations (Scopus)
96 Downloads (Pure)

Convection-driven spherical shell dynamos at varying Prandtl numbers

Käpylä, P. J., Käpylä, M. J., Olspert, N., Warnecke, J. & Brandenburg, A., 2017, In : Astronomy and Astrophysics. 599, 18 p., A4.

Research output: Contribution to journalArticleScientificpeer-review

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20 Citations (Scopus)
200 Downloads (Pure)

Differences in the solar cycle variability of simple and complex active regions during 1996-2018

Nikbakhsh, S., Tanskanen, E., Käpylä, M. & Hackman, T., 4 Sep 2019, In : Astronomy & Astrophysics. 629, 9 p., A45.

Research output: Contribution to journalArticleScientificpeer-review

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100 Downloads (Pure)

Doppler images of DI Piscium during 2004-2006

Lindborg, M., Hackman, T., Mantere, M. J., Korhonen, H., Ilyin, I., Kochukhov, O. & Piskunov, N., 2014, In : Astronomy and Astrophysics. 562, 7 p., A139.

Research output: Contribution to journalArticleScientificpeer-review

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2 Citations (Scopus)
81 Downloads (Pure)

Doppler imaging of LQ Hydrae for 1998-2002

Cole, E. M., Hackman, T., Käpylä, M. J., Ilyin, I., Kochukhov, O. & Piskunov, N., 2015, In : Astronomy and Astrophysics. 581, 9 p., A69.

Research output: Contribution to journalArticleScientificpeer-review

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6 Citations (Scopus)
145 Downloads (Pure)

Dynamical quenching with non-local alpha and downward pumping

Brandenburg, A., Hubbard, A. & Käpylä, P., 2015, In : Astronomische Nachrichten. 336, 1, p. 91-96

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Effects of a subadiabatic layer on convection and dynamos in spherical wedge simulations

Käpylä, P., Viviani, M., Käpylä, M., Brandenburg, A. & Spada, F., 4 Mar 2019, In : GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS. 113, 1-2, p. 149-183 35 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
6 Citations (Scopus)

Effects of small-scale dynamo and compressibility on the Λ effect

Käpylä, P. J., 1 Jan 2019, In : Astronomische Nachrichten.

Research output: Contribution to journalArticleScientificpeer-review

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2 Citations (Scopus)
36 Downloads (Pure)

Electrodynamics of turbulent fluids with fluctuating electric conductivity

Rüdiger, G., Küker, M. & Käpylä, P. J., 1 Jan 2020, In : Journal of Plasma Physics. 905860318.

Research output: Contribution to journalArticleScientificpeer-review

Estimating activity cycles with probabilistic methods I. Bayesian Generalised Lomb-Scargle Periodogram with Trend

Olspert, N., Pelt, J., Käpylä, M. J. & Lehtinen, J. J., Jul 2018, In : Astronomy and Astrophysics. 615, p. 1-13 A111.

Research output: Contribution to journalArticleScientificpeer-review

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117 Downloads (Pure)

Estimating activity cycles with probabilistic methods II: The Mount Wilson Ca H&K data

Olspert, N., Lehtinen, J. J., Käpylä, M. J., Pelt, J. & Grigorievskiy, A., 2018, In : Astronomy and Astrophysics. 619, p. 1-20 A6.

Research output: Contribution to journalArticleScientificpeer-review

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91 Downloads (Pure)

Extended Subadiabatic Layer in Simulations of Overshooting Convection

Käpylä, P. J., Rheinhardt, M., Brandenburg, A., Arlt, R., Käpylä, M. J., Lagg, A., Olspert, N. & Warnecke, J., 20 Aug 2017, In : Astrophysical Journal Letters. 845, 2, p. 1-6 L23.

Research output: Contribution to journalArticleScientificpeer-review

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23 Citations (Scopus)
154 Downloads (Pure)

f-mode strengthening from a localised bipolar subsurface magnetic field

Singh, N. K., Raichur, H., Käpylä, M. J., Rheinhardt, M., Brandenburg, A. & Käpylä, P. J., 1 Jan 2019, In : GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS. p. 1-17

Research output: Contribution to journalArticleScientificpeer-review

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1 Citation (Scopus)
66 Downloads (Pure)

f-mode strengthening from a localized bipolar subsurface magnetic field

Singh, N., Raichur, H., Käpylä, M., Rheinhardt, M., Brandenburg, A. & Käpylä, P., 27 Aug 2018, (Submitted) In : GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS.

Research output: Contribution to journalArticleScientificpeer-review

Gaussian Process Kernels for Popular State-Space Time Series Models

Grigorevskiy, A. & Karhunen, J., Jul 2016, Proc. of the Int. Joint. Conf. on Neural Networks (IJCNN 2016): (IJCNN 2016), Vancouver, Canada, July 2016. IEEE, p. 3354-3363 (International joint conference on neural networks).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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4 Citations (Scopus)
171 Downloads (Pure)

Helicity proxies from linear polarisation of solar active regions

Prabhu, A., Brandenburg, A., Kaepylae, M. J. & Lagg, A., 8 Sep 2020, In : Astronomy & Astrophysics. 641, 12 p., 46.

Research output: Contribution to journalArticleScientificpeer-review

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Hidden magnetic fields of young suns

Kochukhov, O., Hackman, T., Lehtinen, J. J. & Wehrhahn, A., 1 Mar 2020, In : Astronomy and Astrophysics. 635, p. 1-23 23 p., A142.

Research output: Contribution to journalArticleScientificpeer-review

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1 Citation (Scopus)
17 Downloads (Pure)

High-Frequency Geomagnetic Fluctuations at Auroral Oval and Polar Cap

Peitso, P., Tanskanen, E. I., Pulkkinen, T. I. & Mursula, K., Aug 2018, In : Space Weather. 16, 8, p. 1057-1072 16 p.

Research output: Contribution to journalArticleScientificpeer-review

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1 Citation (Scopus)
140 Downloads (Pure)

High-resolution ammonia mapping of the very young protostellar core Chamaeleon-MMS1

Väisälä, M. S., Harju, J., Mantere, M. J., Miettinen, O., Sault, R. S., Walmsley, C. M. & Whiteoak, J. B., 2014, In : Astronomy and Astrophysics. 564, 15 p., A99.

Research output: Contribution to journalArticleScientificpeer-review

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7 Citations (Scopus)
106 Downloads (Pure)

Influence of a coronal envelope as a free boundary to global convective dynamo simulations

Warnecke, J., Käpylä, P. J., Käpylä, M. J. & Brandenburg, A., 1 Dec 2016, In : Astronomy and Astrophysics. 596, A115.

Research output: Contribution to journalArticleScientificpeer-review

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25 Citations (Scopus)
105 Downloads (Pure)

Introduction

Brandenburg, A., Candelaresi, S. & Gent, F. A., 14 Apr 2020, In : GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS. 114, 1-2, p. 1-7 7 p.

Research output: Contribution to journalArticleScientific

Large-scale dynamos in rapidly rotating plane layer convection

Bushby, P. J., Käpylä, P. J., Masada, Y., Brandenburg, A., Favier, B., Guervilly, C. & Käpylä, M. J., 1 Apr 2018, In : Astronomy and Astrophysics. 612, p. 1-16 A97.

Research output: Contribution to journalArticleScientificpeer-review

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7 Citations (Scopus)
124 Downloads (Pure)

Long-term spot monitoring of the young solar analogue V889 Herculis

Willamo, T., Hackman, T., Lehtinen, J. J., Käpylä, M. J., Ilyin, I., Henry, G. W., Jetsu, L., Kochukhov, O. & Piskunov, N., 1 Feb 2019, In : Astronomy and Astrophysics. 622, A170.

Research output: Contribution to journalArticleScientificpeer-review

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1 Citation (Scopus)
130 Downloads (Pure)

Long-term variations of turbulent transport coefficients in a solar-like convective dynamo simulation

Gent, F., Käpylä, M. & Warnecke, J., Oct 2017, In : Astronomische Nachrichten. 338, 8, p. 885-895 11 p.

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Magnetically controlled stellar differential rotation near the transition from solar to anti-solar profiles

Karak, B. B., Käpylä, P. J., Käpylä, M. J., Brandenburg, A., Olspert, N. & Pelt, J., 2015, In : Astronomy and Astrophysics. 576, 17 p., A26.

Research output: Contribution to journalArticleScientificpeer-review

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49 Citations (Scopus)
57 Downloads (Pure)

Magnetic and rotational quenching of the Λ effect

Käpylä, P., Feb 2019, In : Astronomy and Astrophysics. 622, 14 p., A195.

Research output: Contribution to journalArticleScientificpeer-review

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Magnetic field effects on the ISM structure and galactic outflows

Shukurov, A., Evirgen, C. C., Fletcher, A., Bushby, P. J. & Gent, F. A., 2018.

Research output: Contribution to conferencePaperScientific

Magnetic fields of young solar twins

Rosén, L., Kochukhov, O., Hackman, T. & Lehtinen, J., 1 Sep 2016, In : Astronomy and Astrophysics. 593, p. 1-24 24 p., A35.

Research output: Contribution to journalArticleScientificpeer-review

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26 Citations (Scopus)
91 Downloads (Pure)

Magnetic flux concentrations from turbulent stratified convection

Käpylä, P. J., Brandenburg, A., Kleeorin, N., Käpylä, M. J. & Rogachevskii, I., 1 Apr 2016, In : Astronomy and Astrophysics. 588, p. 1-13 A150.

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22 Citations (Scopus)
94 Downloads (Pure)

Magnetic Shocks and Substructures Excited by Torsional Alfvén Wave Interactions in Merging Expanding Flux Tubes

Snow, B., Fedun, V., Gent, F. A., Verth, G. & Erdélyi, R., 20 Apr 2018, In : Astrophysical Journal. 857, 2, p. 1-8 125.

Research output: Contribution to journalArticleScientificpeer-review

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6 Citations (Scopus)
119 Downloads (Pure)

Magnetohydrodynamical origin of eclipsing time variations in post-common-envelope binaries for solar mass secondaries

Navarrete, F. H., Schleicher, D. R. G., Kaepylae, P. J., Schober, J., Voelschow, M. & Mennickent, R. E., Jan 2020, In : Monthly Notices of the Royal Astronomical Society. 491, 1, p. 1043-1056 14 p.

Research output: Contribution to journalArticleScientificpeer-review

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2 Citations (Scopus)
32 Downloads (Pure)

Method for estimating cycle lengths from multidimensional time series: Test cases and application to a massive 'in silico' dataset

Olspert, N., Kapyla, M. J. & Pelt, J., 2 Feb 2017, Proceedings - 2016 IEEE International Conference on Big Data, Big Data 2016. IEEE, p. 3214-3223 10 p. 7840977

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

5 Citations (Scopus)

Method of frequency dependent correlations: Investigating the variability of total solar irradiance

Pelt, J., Käpylä, M. & Olspert, N., 1 Apr 2017, In : Astronomy and Astrophysics. 600, p. 1-19 A9.

Research output: Contribution to journalArticleScientificpeer-review

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2 Citations (Scopus)
85 Downloads (Pure)

Methods for compressible fluid simulation on GPUs using high-order finite differences

Pekkilä, J., Väisälä, M. S., Käpylä, M. J., Käpylä, P. J. & Anjum, O., Aug 2017, In : Computer Physics Communications. 217, p. 11-22

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

MHD supernova explosions -- Large-scale magnetic field effects

Evirgen, C. C. & Gent, F., Aug 2019, (Submitted) In : Astrophysical Journal.

Research output: Contribution to journalArticleScientificpeer-review

Modelling 3D magnetic networks in a realistic solar atmosphere

Gent, F. A., Snow, B., Fedun, V. & Erdelyi, R., Nov 2019, In : Monthly Notices of the Royal Astronomical Society. 489, 1, p. 28-35

Research output: Contribution to journalArticleScientificpeer-review

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30 Downloads (Pure)

Modelling supernova-driven turbulence

Gent, F. A., Mac Low, M. M., Käpylä, M. J., Sarson, G. R. & Hollins, J. F., 14 Apr 2020, In : GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS.

Research output: Contribution to journalArticleScientificpeer-review

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1 Citation (Scopus)
21 Downloads (Pure)

Multiperiodicity, modulations, and flip-flops in variable star light curves - III. Carrier fit analysis of LQ Hydrae photometry for 1982-2014

Olspert, N., Käpylä, M. J., Pelt, J., Cole, E. M., Hackman, T., Lehtinen, J. & Henry, G. W., 2015, In : Astronomy and Astrophysics. 577, 13 p., A120.

Research output: Contribution to journalArticleScientificpeer-review

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1 Citation (Scopus)
41 Downloads (Pure)

Multiperiodicity, modulations and flip-flops in variable star light curves: II. Analysis of II Pegasus photometry during 1979-2010

Lindborg, M., Mantere, M. J., Olspert, N., Pelt, J., Hackman, T., Henry, G. W., Jetsu, L. & Strassmeier, K. G., 2013, In : Astronomy and Astrophysics. 559, p. 1-10 A97.

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Multiple dynamo modes as a mechanism for long-term solar activity variations

Käpylä, M., Käpylä, P., Olspert, N., Brandenburg, A., Warnecke, J., Karak, B. B. & Pelt, J., May 2016, In : Astronomy and Astrophysics. 589, 24 p., 56.

Research output: Contribution to journalArticleScientificpeer-review

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New developments in test methods

Rheinhardt, M., 25 Sep 2019, (Unpublished) None.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Numerical Simulations of Convection with Kramers Opacity

Käpylä, P., Rheinhardt, M., Käpylä, M. & Brandenburg, A., 2016, (In preparation) In : Astronomy and Astrophysics.

Research output: Contribution to journalArticleScientificpeer-review

On the cause of solar-like equatorward migration in global convective dynamo simulations

Warnecke, J., Käpylä, P. J., Käpylä, M. J. & Brandenburg, A., 2014, In : Astrophysical Journal Letters. 796, 1, 6 p., L12.

Research output: Contribution to journalArticleScientificpeer-review

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37 Citations (Scopus)
97 Downloads (Pure)

Overshooting in simulations of compressible convection

Käpylä, P., 2019, In : Astronomy & Astrophysics. 631

Research output: Contribution to journalArticleScientificpeer-review

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60 Downloads (Pure)

Parallelizable sparse inverse formulation Gaussian processes (SpInGP)

Grigorevskiy, A., Lawrence, N. & Särkkä, S., 2017, 2017 IEEE International Workshop on Machine Learning for Signal Processing, MLSP 2017 - Proceedings. IEEE, 7 p. (IEEE International Workshop on Machine Learning for Signal Processing).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Open Access
3 Citations (Scopus)