Department of Computer Science

Astroinformatics

Astroinformatics group conducts research on astrophysical objects, such as the Sun, other stars, accretion disks, and galaxies, using state-of-the-art numerical simulations and data-analysis techniques. These include simulation tools accelerated with graphics processing units, and data-analysis tools employing machine learning. Our goals include understanding, predicting, and mitigating the harmful effects from solar magnetic activity.
Astroinformatics figure forcing

Research

People

Frederick Gent

Frederick Gent

Department of Computer Science
Postdoctoral Researcher
Alexander Grigorevskiy

Alexander Grigorevskiy

Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE
Master of Science
Maarit Käpylä

Maarit Käpylä

Department of Computer Science
Professor (Associate Professor)
Petri Käpylä

Petri Käpylä

Professorship Vehtari A.
Research Fellow

Jyri Lehtinen

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

Nigul Olspert

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

Matthias Rheinhardt

Department of Computer Science
Research Fellow

News

Astroinformatics research group news

ReSolve CoE (Astroinformatics research group) determined magnetic helicity spectrum
Department of Computer Science

The Sun shows signatures of turbulent dynamo action

Astroinformatics research group has determined magnetic helicity spectrum from the solar surface observations using the recently developed two-scale formalism.
Rotation-Activity relation in global convection simulations
Department of Computer Science

Rotation-Activity relation in global convection simulations

Stellar magnetic activity level and rotation are strongly connected. Astroinformatics research group studied the effect of increasing rotation rate on solar-like stars using magnetohydrodynamic simulations of stars with outer convective envelopes.

Projects

PRACE SOLDYN project (EU, PI Petri Käpylä)

Grand Challenge project DYNAMO13 (CSC, PI Petri Käpylä)

Participating team in the Academy of Finland Center of Excellence ReSoLVE (team leader Maarit Mantere)

"Active Suns" research project (UH, PI Petri Käpylä)

Grand Challenge project SNDYN (CSC, PI Maarit Mantere)

Grand Challenge project NEMPI (CSC, PI Käpylä)

"Convection-driven dynamos in rapidly rotating late-type stars" (EU DEISA/DECI, PI Käpylä)

"Magnetic fields and cycles in active late-type stars", (NOT, PI Maarit Mantere)

"Active Suns: Spectropolarimetry of rapidly rotating solar-type stars" (ESO, PI Thomas Hackman)

Magnetic fields residing in the convection zone of a solar-like star modelled

Video description: With the aid of computer simulations, we can study how the subsurface magnetic fields are generated inside the stars. The key role is played by convective turbulence, added with large-scale plasma motions. These effects together induce magnetic fields that eventually cause all magnetic activity of stars.

The video has been produced by Petri Käpylä.

Latest publications

Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Professorship Vehtari A., Department of Computer Science
Publishing year: 2020 GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS
Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Department of Computer Science
Publishing year: 2019 Astronomy & Astrophysics
Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Professorship Vehtari A., Department of Computer Science
Publishing year: 2019 Astrophysical Journal
Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Professorship Vehtari A., Department of Computer Science
Publishing year: 2019 Monthly Notices of the Royal Astronomical Society
Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Professorship Vehtari A., Department of Computer Science
Publishing year: 2019 Monthly Notices of the Royal Astronomical Society
Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Professorship Vehtari A., Department of Computer Science
Publishing year: 2019 GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS
Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Department of Computer Science
Publishing year: 2019 Astronomy & Astrophysics
Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Professorship Vehtari A., Department of Computer Science
Publishing year: 2019 GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS
Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Professorship Vehtari A., Department of Computer Science
Publishing year: 2019 Astronomische Nachrichten
Centre of Excellence Research on Solar Long-Term Variability and Effects, ReSoLVE, Professorship Vehtari A., Department of Computer Science
Publishing year: 2019 Astronomy and Astrophysics
More information on our research in the Research database.
Research database

Software

Alumni

Alexander Grigorievskiy

Dr.

Nigul Olspert

Dr.

Miikka Väisälä

Dr.

Jyri Lehtinen

Dr.

Elizabeth Cole

Dr.

Jan Snellman

Dr.

Marjaana Lindborg

Dr.

Anne Liljeström

M.Sc. (URSA)
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