Hans Arnold Winther

Associate Professor - Kosmologi

Norwegian version of this page

Email h.a.winther@astro.uio.no

Phone +47 22857525

Room 101

Username

Visiting address Sem Sælands vei 13 Svein Rosselands hus 0371 Oslo

Postal address Postboks 1029 Blindern 0315 Oslo

Press photo Download business card

Personal website

https://www.wintherscoming.no/

Academic interests

Theoretical cosmology, numerical cosmology, simulations of structure formation, galaxy surveys, cosmic voids, dark matter, dark energy.

Courses taught

AST1010 (Fall 2019, Fall 2020)
AST5220 / AST9420 (Spring 2020, Spring 2021)

Background

PhD ITA UiO 2013

Postdoc University of Oxford 2013-2016

Postdoc ICG University of Portsmouth 2016-2019

Fiorini, Bartolomeo; Koyama, Kazuya; Izard, Albert; Winther, Hans Arnold; Wright, Bill S. & Li, Baojiu (2021). Fast generation of mock galaxy catalogues in modified gravity models with COLA. Journal of Cosmology and Astroparticle Physics (JCAP). ISSN 1475-7516. 2021(09). doi: 10.1088/1475-7516/2021/09/021.
Hartman, Stian Thomas Heimdal; Winther, Hans Arnold & Mota, David (2021). Dynamical friction in Bose-Einstein condensed self-interacting dark matter at finite temperatures, and the Fornax dwarf spheroidal. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 647. doi: 10.1051/0004-6361/202039865.
Tamosiunas, Andrius; Winther, Hans Arnold; Koyama, Kazuya; Bacon, David; Nichol, Robert C. & Mawdsley, Ben (2021). Investigating cosmological GAN emulators using latent space interpolation. Monthly notices of the Royal Astronomical Society. ISSN 0035-8711. 506(2), p. 3049–3067. doi: 10.1093/mnras/stab1879. Full text in Research Archive
Mina, Mattia; Mota, David & Winther, Hans Arnold (2020). SCALAR: an AMR code to simulate axion-like dark matter models. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 641. doi: 10.1051/0004-6361/201936272. Full text in Research Archive
Bose, Benjamin; Winther, Hans Arnold; Pourtsidou, Alkistis; Casas, Santiago; Lombriser, Lucas & Xia, Qianli [Show all 7 contributors for this article] (2020). Hybrid Pℓ(k): general, unified, non-linear matter power spectrum in redshift space. Journal of Cosmology and Astroparticle Physics (JCAP). ISSN 1475-7516. 2020(09). doi: 10.1088/1475-7516/2020/09/001. Full text in Research Archive
Hartman, Stian; Winther, Hans Arnold & Mota, David (2020). Collapse of spherical overdensities in superfluid models of dark matter. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 639. doi: 10.1051/0004-6361/201937263. Full text in Research Archive
Aviles, Alejandro; Koyama, Kazuya; Cervantes-Cota, Jorge L; Winther, Hans Arnold & Li, Baojiu (2020). Marked correlation functions in perturbation theory. Journal of Cosmology and Astroparticle Physics (JCAP). ISSN 1475-7516. 2020(01). doi: 10.1088/1475-7516/2020/01/006. Full text in Research Archive
Nadathur, Seshadri; Percival, Will J.; Beutler, Florian & Winther, Hans Arnold (2020). Testing Low-Redshift Cosmic Acceleration with Large-Scale Structure. Physical Review Letters. ISSN 0031-9007. 124(22). doi: 10.1103/PhysRevLett.124.221301. Full text in Research Archive
Winther, Hans Arnold; Casas, Santiago; Baldi, Marco; Koyama, Kazuya; Li, Baojiu & Lombriser, Lucas [Show all 7 contributors for this article] (2019). Emulators for the nonlinear matter power spectrum beyond ΛCDM. Physical Review D. ISSN 2470-0010. 100(12), p. 123540-1–123540-13. doi: 10.1103/PhysRevD.100.123540. Full text in Research Archive
Bose, Benjamin; Koyama, Kazuya & Winther, Hans Arnold (2019). Assessing non-linear models for galaxy clustering III: theoretical accuracy for stage IV surveys. Journal of Cosmology and Astroparticle Physics (JCAP). ISSN 1475-7516. 2019(10). doi: 10.1088/1475-7516/2019/10/021.
L'Huillier, Benjamin; Winther, Hans Arnold; Mota, David; Park, Changbom & Kim, Juhan (2017). Dark matter haloes in modified gravity and dark energy: interaction rate, small- and large-scale alignment. Monthly notices of the Royal Astronomical Society. ISSN 0035-8711. 468(3), p. 3174–3183. doi: 10.1093/mnras/stx700. Full text in Research Archive
Carlesi, Edoardo; Mota, David & Winther, Hans Arnold (2017). The dynamics of the Local Group as a probe of dark energy and modified gravity. Monthly notices of the Royal Astronomical Society. ISSN 0035-8711. 466(4), p. 4813–4825. doi: 10.1093/mnras/stx056. Full text in Research Archive
Gronke, Max Balthasar; Hammami, Amir; Mota, David & Winther, Hans Arnold (2016). Estimates of cluster masses in screened modified gravity. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 595. doi: 10.1051/0004-6361/201628644.
Vargas dos santos, Marcelo; Winther, Hans Arnold; Mota, David & Waga, Ioav (2016). N-body simulations of γ gravity. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 587. doi: 10.1051/0004-6361/201527645.
Bull, Philip James; Akrami Cheghasiahi, Yashar; Adamek, Julian; Baker, Tessa; Bellini, Emilio & Beltrán Jiménez, Jose [Show all 40 contributors for this article] (2016). Beyond ΛCDM: Problems, solutions, and the road ahead. Physics of the Dark Universe. ISSN 2212-6864. 12, p. 56–99. doi: 10.1016/j.dark.2016.02.001.
Winther, Hans Arnold; Schmidt, F.; Barreira, Alexandre; Arnold, Christian; Bose, S. & Llinares, Claudio [Show all 15 contributors for this article] (2015). Modified gravity N-body code comparison project. Monthly notices of the Royal Astronomical Society. ISSN 0035-8711. 454(4), p. 4208–4234. doi: 10.1093/mnras/stv2253. Full text in Research Archive
Gronke, Max Balthasar; Mota, David & Winther, Hans Arnold (2015). Universal predictions of screened modified gravity on cluster scales. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 583. doi: 10.1051/0004-6361/201526611. Full text in Research Archive
Grönke, Max Balthasar; Llinares, Claudio; Mota, David & Winther, Hans Arnold (2015). Halo velocity profiles in screened modified gravity theories. Monthly notices of the Royal Astronomical Society. ISSN 0035-8711. 449(3), p. 2837–2844. doi: 10.1093/mnras/stv496. Full text in Research Archive
Hammami, Amir; Llinares, Claudio; Mota, David & Winther, Hans Arnold (2015). Hydrodynamic effects in the symmetron and f(R)-gravity models. Monthly notices of the Royal Astronomical Society. ISSN 0035-8711. 449(4), p. 3635–3644. doi: 10.1093/mnras/stv529. Full text in Research Archive
Silva, M. F.; Winther, Hans Arnold; Mota, David & Martins, Carlos Jose Amaro Parente (2014). Spatial variations of the fine-structure constant in symmetron models. Physical Review D. ISSN 1550-7998. 89. doi: 10.1103/PhysRevD.89.024025. Full text in Research Archive
Llinares, Claudio; Mota, David & Winther, Hans Arnold (2014). ISIS: a new N-body cosmological code with scalar fields based on RAMSES - Code presentation and application to the shapes of clusters. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 562. doi: 10.1051/0004-6361/201322412. Full text in Research Archive
Winther, Hans Arnold (2013). Layzer-Irvine equation for scalar-tensor theories: A test of modified gravity N-body simulations. Physical Review D. Particles and fields. ISSN 0556-2821. 88(4). doi: 10.1103/PhysRevD.88.044057.
Brax, P; Davis, A.-C.; Li, Baojiu; Winther, Hans Arnold & Zhao, Gong-Bo (2013). Systematic simulations of modified gravity: chameleon models. Journal of Cosmology and Astroparticle Physics (JCAP). ISSN 1475-7516. doi: 10.1088/1475-7516/2013/04/029.
Brax, P; Davis, A.-C.; Li, Baojiu; Winther, Hans Arnold & Zhao, Gong-Bo (2012). Systematic simulations of modified gravity: symmetron and dilaton models. Journal of Cosmology and Astroparticle Physics (JCAP). ISSN 1475-7516. 10. doi: 10.1088/1475-7516/2012/10/002.
Winther, Hans Arnold; Mota, David & Li, Baojiu (2012). ENVIRONMENT DEPENDENCE OF DARK MATTER HALOS IN SYMMETRON MODIFIED GRAVITY. The Astrophysical Journal (ApJ). ISSN 0004-637X. 756(2). doi: 10.1088/0004-637X/756/2/166.
Brax, P; Davis, A.-C.; Li, Baojiu & Winther, Hans Arnold (2012). Unified description of screened modified gravity. Physical Review D. Particles and fields. ISSN 0556-2821. 86(4). doi: 10.1103/PhysRevD.86.044015. Full text in Research Archive
Brax, P; Davis, A.-C. & Winther, Hans Arnold (2012). Cosmological supersymmetric model of dark energy. Physical Review D. Particles and fields. ISSN 0556-2821. 85(8). doi: 10.1103/PhysRevD.85.083512. Full text in Research Archive
Davis, A.-C.; Li, Baojiu; Mota, David & Winther, Hans Arnold (2012). STRUCTURE FORMATION IN THE SYMMETRON MODEL. The Astrophysical Journal (ApJ). ISSN 0004-637X. 748(1). doi: 10.1088/0004-637X/748/1/61. Full text in Research Archive
Mota, David & Winther, Hans Arnold (2011). COSMOLOGY OF CHAMELEONS WITH POWER-LAW COUPLINGS. The Astrophysical Journal (ApJ). ISSN 0004-637X. 733(1). doi: 10.1088/0004-637X/733/1/7.
Gannouji, Radouane; Moraes, Bruno; Mota, David Fonseca; Polarski, David; Tsujikawa, S & Winther, Hans Arnold (2010). Chameleon dark energy models with characteristic signatures. Physical Review D. Particles and fields. ISSN 0556-2821. 82. doi: 10.1103/PhysRevD.82.124006.
Brax, P; van de Bruck, C.; Mota, David Fonseca; Nunes, Nelson & Winther, Hans Arnold (2010). Chameleons with field-dependent couplings. Physical Review D. Particles and fields. ISSN 0556-2821. 82(8). doi: 10.1103/PhysRevD.82.083503.

View all works in Cristin

Mina, Mattia; Mota, David & Winther, Hans Arnold (2020). Cosmology at small scales: ultra-light dark matter and baryon cycles in galaxies. Faculty of Mathematics and Natural Sciences. ISSN 1501-7710.
Winther, Hans Arnold (2013). Cosmological Probes of Modified Gravity. Akademika forlag. ISSN 1501-7710.

View all works in Cristin

Published Apr. 5, 2019 12:16 PM - Last modified Jan. 12, 2021 12:50 AM

Projects

Research groups

Cosmology and extragalactic astronomy