Astrophysical Fluid Dynamics at Nordita
The European Research Council decided in 2008 to fund a concentrated
5-year effort at Nordita
in Stockholm to improve our understanding of astrophysical dynamos.
This work couples large-scale numerical simulations with numerically
guided analytical approaches.
An ultimate goal is to have a physically consistent model of the solar dynamo.
Simulations, on the one hand, still lack some potentially important
properties (tachocline, near-surface shear layer, ability to shed
small-scale magnetic helicity), while analytic approaches (including
mean-field theory) are still being developed to explain and reproduce
more successfully some of the systematic behaviors seen in simulations.
One of the default research tool is the
which is a public domain code initiated at Nordita and used for solving
partial differential equations on massively parallel computers.
It is now hosted by Github.
Its maintenance through a remote versioning system allows the users
easy updates and the possibility of sharing new and/or experimental
developments with other users.
16 Dec 2022: Yutong He defends his Licentiate on Gravitational Waves from Primordial Magnetic Sources
23 June 2022: Beatriz Villarroel, the first Swede ever, receives the L'Oréal-Unesco International Rising Talent award for Women in Science
12 October 2021: Relic Gravitational Waves from Inflationary Magnetogenesis with the Pencil Code,
also with helicity
8 March 2021: Beatriz Villarroel receives the L'Oréal-Unesco For Women in Science-prisets
27 November 2020: first meeting of the new composition of the Pencil Code Steering Cttee (minutes)
18 September 2020: Pencil Code Collaboration paper now in review in JOSS
1 August 2020: obituary appeared for David Moss (1943-2020)
17 July 2020: first issue of the Pencil Code Newsletter has appeared
20 March 2020: Virtual Nordic Dynamo Lecture Series (https://stockholmuniversity.zoom.us/j/940229961)
9 February 2020: Karl-Heinz Rädler (1935-2020)
30 January 2020: Gene Parker receives the Crafoord Prize
2 January 2020: Ed Spiegel (1932-2020)
2 December 2019: PhD position: https://jobregister.aas.org/ad/a2338b48
22 November 2019: PhD position in gravitational waves
2 October 2019: Special issue on Physics and Algorithms of the Pencil Code now complete
12 June 2019: Julia Asplund finds No sign of left-handedness in GeV photon arrival directions
1-5 Apr 2019: Turbulence & magnetic fields - from the early universe to late-type stars
8 Jan 2019: Illa R. Losada defends her thesis on the Formation of solar bipolar regions
21 Sep 2018: Xiang-Yu defends his thesis
31 Aug 2018: Xiang-Yu's thesis on DIVA: Droplet growth in atmospheric turbulence: A direct numerical simulation study
2 Jun 2018: Pencil Code developer Andreas Schreiber defended diffusion-limited planetesimal formation
12 Dec 2017: three open postdoc positions at SU solar group
22 Nov 2017: Group visitor Miikka Väsälä's PhD thesis successfully defended
20 May 2016: Press release: Hidden magnetic field during grand minimum
20 May 2016: Sarah Jabbari defends her
20 May 2016: Xiang-Yu Li defends his
16 Mar 2016: Sarah receives an SPD Studentship Award
5 Jan 2016: Nishant submitted paper on the solar f-mode precursor
16 Aug 2015: Barbara Perri submitted her Internship Report
15 May 2015: Fig 5 of Harsha's tidal disruption in NGC 5905 on the cover of Ap. Spa. Sci.
18 Apr 2015: The Pencil Code has been successfully migrated from googlecode to Github.
11 Apr 2015: Katie's talk about the Dark Side of the Universe
22 Mar 2015: Katie Freese in Finnish Gloria magazine
27 Feb 2015: new AlbaNova/Nordita/OKC promotional video is out
22 Jan 2015: XMM time to Harsha Raichur for intermediate mass black holes
5 Dec 2014: Illa R. Losada defended successfully her licentiate thesis
2 Oct 2014: KAW Grant "Bottlenecks for particle growth in turbulence" to B. Mehlig et al.
19 May 2014: Sarah Jabbari defended successfully her licentiate thesis.
11 Apr 2014: Astrofysikern Axel Brandenburg ny ledamot i akademien
2 Apr 2014: PhD position in particle clustering and rain drop formation (Stockholm U & Nordita)
1 Mar 2014: launch of TurboPart on particle clustering in stratified turbulence)
13 Dec 2013: Grant on particle clustering for Nordita (FRINATEK, Norway)
2 Dec 2013: Research Video: Solar Physics at Nordita
25 Sep 2013: K-H Rädler receives the Schwarzschild Medal
5 Aug 2013: Bipolar region from NEMPI
12 Jul 2013: Anders Johansen receives the Harold C. Urey prize
24 Jun 2013: NEMPI with vertical field: just submitted
31 May 2013: Warnecke's PhD defense, additional photos
29 May 2013: Atefeh Barekat defends her Master's thesis
8 May 2013: Warnecke's PhD thesis on DIVA
30 Apr 2013: Ebru Devlev receives the Astronomy Science Award of Turkey
8 Apr 2013: Start of program on Differential Rotation etc
30 Jan 2013: popast.nu about NEMPI
19 Jan 2013: Final report about Winter School put online
17 Dec 2012: Decision to host the Solar Physics Institute at Stockholm University
7 Dec 2012: Simon Candelaresi defends his
30 Nov 2012:
Nordita movie released
14 Nov 2012: Fabio Del Sordo defends his
7 Nov 2012: Shibata-san and Axel, now and then
26 Oct 2012: Koen Kemel
8 Oct 2012: Sabine Hossenfelder publishes blog entry about
the Sun's butterfly diagram
28 Jul 2012:
equatorward migration in solar dynamo model just published
1 Jul 2012: dynamos in SNR shocks; see our
the Bell instability
21 May 2012:
equatorward migration in
spherical wedge convection
26 Mar 2012:
Jörn's home page released
21 Mar 2012:
12 Feb 2012:
NEMPI page moved to here (with new convergence plot)
26 Nov 2011:
MHD course schedule annouced (starting 17 Jan 2012)
18 Nov 2011:
PhD studentship 2012 annouced (deadline 15 Jan 2012)
8 Nov 2011:
Tage Erlander Guest Professorship to John Wettlaufer
3 Oct 2011: publication of
Detection of NEMPI in DNS in ApJL 740, L50
18 Sep 2011: Chi-kwan Chan
has his sg2 code on GoogleCode
16 Aug 2011: Koen Kemel defends his
6 May 2011: Jörn Warnecke defends his
11 Feb 2011: Simon Candelaresi defends his
9 Feb 2011: Fabio del Sordo defends his
Current astro/project/group members:
Patrik Tengner (2022-),
Yutong He (2020-),
Beatriz Villarroel (2018-),
Ramkishor Sharma (2021-),
Nikhil Sarin (2021-),
Sambit Giri (2022-),
Dhrubaditya Mitra (2010-),
Lars Mattsson (2015-),
Bengt Gustafsson (2010-),
Maarit Käpylä (2020-).
Michael Liberman (2013-).
his research highlights
Violaine Auger (2009),
Emeric Bron (2010),
Barbara Perri (2015),
Lina Issa (2020),
Patrik Jakab (2020).
Atefeh Barekat (2012-2013, now at MPS).
Koen Kemel (2009-2012, now at Leuven),
Simon Candelaresi (2009-2013, now at Dundee),
Fabio Del Sordo (2009-2013, now at Yale),
Jörn Warnecke (2009-2013, now at MPS).
Sarah Jabbari (2012-2016),
Illa R. Losada (2013-2019, now at the McDonald Observatory of the University of Texas at Austin),
Xiang-Yu Li (2014-2018, now at Pacific Northwest National Lab, Richland, WA 99354, USA).
Vipin Agrawal (2017-2022),
Piyali Chatterjee (2009-2011),
Gustavo Guerrero (2009-2011),
Alexander Hubbard (2008-2011).
Nishant Singh (2013-2016),
Harsha Raichur (2015-2016),
Akshay Bhatnagar (2016-2020),
Andrea Bracco (2017-2018),
Xiang-Yu Li (2019-2020),
Camilia Demidem (2019-2021),
Hongzhe Zhou (2020-2022),
Patryk Pjanka (2020-2022),
Niccoló Bucciantini (2009-2011),
Chi-kwan Chan (2010-2012),
Oliver Gressel (2012-2013).
Mikhail Modestov (2012-2014),
C. Anthony van Eysden (2012-2014),
Bidya Binay Karak (2013-2015),
Lars Mattsson (2013-2015).
Jennifer Schober (2015-2017),
Alexandra Veledina (2016-2017).
Livia Vallini (2016-2018),
Joonas Nättilä (2018-2020),
Upasana Das (2018-2020),
Mattia Bulla (2019-2021),
Christer Sandin (2020),
Nils E. L. Haugen (2020).
Petri Käpylä (2009-2011, but on leave),
Lars Mattsson (2015-2021),
Alexandra Veledina (2017-2022),
Gudlaugur Johannesson (2017-2022).
Hans-Erik Sätherblom (2011-2013),
Ahmet Devlen (2013),
Ebru Devlen (2012-2013).
Matthias Rheinhardt (2009-2011 and 2013-2014),
Leonid Kitchatinov (2011),
John Wettlaufer (2011-2012),
Gunnlaugur Björnsson (2012).
Juri Poutanen (2016-2021).
Nathan Kleeorin (2010-),
Karl-Heinz Rädler (2008-2015),
Igor Rogachevskii (2010-).
Nordita Astrophysics Group in June 2015. From the left, starting from the back:
Nils Erland Haugen,
Bidya Binay Karak.
Earlier group pictures: Group2010, Group2013.
27 Aug - 20 Sep 2019 Gravitational Waves from the Early Universe (Stockholm)
1-31 March 2019 Solar Helicities in Theory and Observations (Stockholm)
15 June - 10 July 2015 Origin, Evolution, and Signatures of Cosmological Magnetic Fields (Stockholm)
9 - 13 March 2015 Sunspot formation: theory, simulations and observation (Stockholm)
23 - 27 Sep 2013 Galactic Magnetism in the Era of LOFAR and SKA
8 Apr - 3 May 2013 Differential Rotation and Magnetism across the HR Diagram
7 - 18 January 2013 Nordita Winter School 2013 in High-Energy Astrophysics
15-17 Oct 2012 12th European Workshop on Astrobiology
6-10 August 2012 Astrophysics Code Comparison Workshop
17-21 Oct 2011 The solar course, the chemic force, and the speeding change of water
25 Jul - 19 Aug 2011 Dynamo, Dynamical Systems and Topology
26 Apr - 27 May 2011 Predictability + School on Data Assimilation
14 - 18 Feb 2011 RädlerFest: α effect and beyond
11 - 22 Jan 2010 Winter School on Astrophysical Dynamos
25 Sep - 25 Oct 2009 Solar and stellar dynamos and cycles
6 - 10 Apr 2009 Astrophysical Magnetohydrodynamics
17 Mar - 11 Apr 2008 Turbulence and Dynamos
Skyddsombud: Anthony Bonfils (Nordita), and Habib Rostami (Nordita), Lisbeth Haeggberg (SU)
SU zero tolerance harassment policy
Project pages: daily routine and progress reports
Press release of 15 Sept 2008,
ERC overall outcome
Interview with British Publishers, January 2010
Report after 18 months, September 2010
Report after 30 months, October 2011
Report after 36 months, March 2012
Report after 54 months, September 2013
Report after 60 months, February 2014
Nordita Astrophysics in 2010, December 2010
Nordita Astrophysics in 2013, September 2013
How to find Nordita on Google Earth
Try to scan the box on the right with your Android barcode scanner!
(Download barcode scanner from the Android Marketplace.
For iPhone and Blackberry and others: Neo Reader)
View Larger Map,
Figure at the top: courtesy of Dr Petri Käpylä
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
(arXiv:1205.4719, ADS, DOI, PDF)
$Date: 2023/01/02 08:15:00 $, $Author: brandenb $, $Revision: 1.194 $