The 10 most recent publications from the research group:

1. 1) Resolving the Complex Evolution of a Supermassive Black Hole Triplet in a Cosmological Simulation
   M. Mannerkoski, P.H. Johansson, A. Rantala T. Naab, S. Liao, 2021, ApJL, 912, 20
   

2. 2) Setting the stage: structures from Gaussian random fields
   T. Sawala. A. Jenkins, S. McAlpine, J. Jasche, G. Lavaux, P.H. Johansson, C.S. Frenk, 2021, MNRAS, 501, 4759
   

3. 3) Structure and rotation of young massive star clusters in a simulated dwarf starburst
   N. Lahén, T.Naab, P.H. Johansson, T. Naab, B. Elmegreen, C.-Y. Hu, S. Walch, 2020, ApJ, 904, 71
   

4. 4) The Star-Formation Properties of the Observed and Simulated AGN Universe: BAT vs EAGLE
   T.M. Jackson, D.J. Rosario, D.M. Alexander, S. McAlpine, R. G. Bower, MNRAS, in press, ArXiv:2008.05115
   

5. 5) Setting the Stage: Structures of Gaussian Random Fields
   T. Sawala, A. Jenkins, S. McAlpine, J. Jasche, G. Lavaux, P.H. Johansson, C.S. Frenk, 2020, MNRAS,  submitted, ArXiv: 2005.14112
   

6. 6) Comparison of stellar populations in simulated and real post-starburst galaxies in ManGA
   Y. Zheng, V. Wild, N. Lahén, P.H. Johansson, D. Law, J.R. Weaver, N. Jimenez, 2029, MNRAS, in press, ArXiv: 2005.14112
   

7. 7) Galaxy mergers in EAGLE do not induce a significant amount of black hole growth yet do increase the rate of luminous AGN
   S. McAlpine, C.M. Harrison, D.J. Rosario, D.M. Alexander, S.L. Ellison, P.H. Johansson, D.R. Patton, 2020, MNRAS, 494, 5713
   

8. 8) The GRIFFIN project - Formation of star clusters with individual massive stars in a simulated dwarf galaxy
   N. Lahén, T.Naab, P.H. Johansson, T. Naab, B. Elmegreen, C.-Y. Hu, S. Walch, U.P. Steinwandel, B.P. Moster, 2020, ApJ, 891, 2
   

9. 9) MSTAR - a fast parallelized algoritmically regularized integrator with minimum spanning tree coordinates
   A. Rantala, P. Pihajoki, M.Mannerkoski, P.H. Johansson, T. Naab, 2020, MNRAS, 492, 4131
   

10. 10) Gravitational waves from the inspiral of supermassive black holes in galactic-scale simulations
    M.Mannerkoski, P.H. Johansson, P. Pihajoki, A. Rantala, T. Naab, 2019, ApJ, 87, 35

Current members in the research group:

Prof. Peter Johansson (group leader)
Dr. Till Sawala (Academy research fellow)

Dr. Stuart McAlpine (postdoc)
Dr. Shihong Liao (postdoc)

Dr. Dimitrios Irodotou (potsdoc)
M.Sc. Matias Mannerkoski (PhD student)

M.Sc. Alexander Rawlings (PhD student)

B.Sc. Atte Keitaanranta (undergraduate student)
B.Sc. Iida Kostamo (undergraduate student)
Sonja Soininen (undergraduate student)

Past members of the research group:

Dr. John Regan (Royal Society fellow at Maynooth University)
Dr. Antti Rantala (Postdoc at MPA)
Dr. Natalia Lahén (Postdoc at MPA)
Dr. Pauli Pihajoki (Silo AI)

Collaborators at the University of Helsinki:
Prof. Alexis Finoguenov
Prof. Kari Enqvist
Dr. Mika Juvela
Dr. Hannu Kurki-Suonio
Dr. Syksy Räsänen

External Collaborators:
Dr. Thorsten Naab (MPA)

Dr. Jens Thomas (MPE)
Prof. Jeremiah Ostriker (Columbia/Princeton)

Dr. John Regan (Dublin City University)
Dr. Vivienne Wild (St. Andrews)
Prof. John Wise (Georgia Institute of Technology)

Dr. Petri Väisänen (South African Astronomical Observatory)
Prof. Carlos Frenk (Durham)

Prof. Simon White (MPA)

Prof. Andreas Burkert (Munich)
Prof. Martin Haehnelt (Cambridge)
Prof. Rachel Somerville (Rutgers)

Dr. Ben Moster (Munich)

Dr. Ena Choi (Rutgers)
Dr. Rhea-Silvia Remus (Munich)

Supervision of theses:

Recent Ph.D. Theses completed in the research group:

1. 1) Natalia Lahén: “Hydrodynamical simulations and synthetic observations of merging galaxies”, June, 2020
   

2. 2) Antti Rantala: “Modeling supermassive black hole dynamics in galactic-scale numerical simulations”, July, 2019
   

Recent M.Sc. Theses completed in the research group:

9. 9) Alexander Rawlings: “The Final Parsec Problem in Massive Early-Type Galaxies”, January, 2021
   

8. 8) Joonas Suortti: “Simulating Core Formation Through Supermassive Black hole Mergers”, January, 2020
   

7. 7) Vili Oja: “Simulating the dynamics of supermassive black holes”, December, 2019
   

6. 6) Anni Järvenpää: “Statistical estimation of the Local Group Mass”, December, 2018
   

5. 5) Matias Mannerkoski: “Ray-Tracing Based Polarized Radiative Transfer in General Spacetimes, March, 2018
   

4. 4) Lasse Liljedahl: “The Effects of Supernova Feedback on Disk Galaxy Formation”, December, 2017
   

3. 3) Natalia Lahén: “Equal-mass Galaxy Mergers: Initial Conditions and Subresolution Astrophysics”, April, 2015
   

2. 2) Antti Rantala: “Forming Galaxies in Cosmological Zoom-in Simulations”, March, 2014.
   

1. 1) Heidi Yli-Kankahila: “Formation of Early-type galaxies through mergers of gas-rich disk galaxies”, October, 2012.
   
   Recent B.Sc. Theses completed in the research group (in Finnish):
   

13. 13) Sonja Soininen: “Lentoratojen kehittäminen kosmologisten simulaatioiden visualisoinnin tueksi”, August, 2021
    

12. 12) Iida Kostamo: “Pimeän aineen halojen rakenne, synty ja kehitys”, June, 2021
    

11. 11) Atte Keitaanranta: “Supermassiivisten mustien aukkojen rooli galakseissa”, June, 2020
    

10. 10) Pekka Lampio: “Logaritmisen Hamiltonin funktion käyttö taivaanmekaniikassa”, June, 2019
    

9. 9) Kasper Siilin: “Kahden jakson inflaatio ja rakenteenmuodostus standardi-LCDM-kosmologiassa”, August, 2018
   

8. 8) Vili Oja: “Ellipsigalaksien rakenne, synty ja kehitys”, July,  2018
   

7. 7) Sanna Damsted: “Missä ovat puuttuvat kääpiögalaksit? - Tutkielma havaintojen ja LCDM-teorian välillä vallitsevan ristiriidan nykytilasta”, August, 2017
   

6. 6) Antton Luoma “Spiraaligalaksien rakenne ja kehitys”, February 2016
   

5. 5) Anni Järvenpää: “AMR-simulaatiotulosten visualisointi Pythonilla yt-pakettia käyttäen”, July 2015
   

4. 4) Akke Viitanen: “Universumin suuren mittakaavan rakenne”, July 2015
   

3. 3) Jussi Aaltonen: “Pimeä aine ja maailmankaikkeuden rakenteenmuodostus, March, 2015.
   

2. 2) Natalia Lahén: “Galaksienväliset vuorovaikutukset”,
   February, 2014.
   

1. 1) Antti Rantala: “Pimeä energia ja maailmankaikkeuden kiihtyvä laajeneminen”, July, 2012.
   

Research topics for B.Sc., M.Sc. and Ph.D. Theses:

Please come and talk to me in my office (D311) and/or send
me an email.