Steen Hannestad

9.6k total citations · 1 hit paper
134 papers, 5.8k citations indexed

About

Steen Hannestad is a scholar working on Nuclear and High Energy Physics, Astronomy and Astrophysics and Statistical and Nonlinear Physics. According to data from OpenAlex, Steen Hannestad has authored 134 papers receiving a total of 5.8k indexed citations (citations by other indexed papers that have themselves been cited), including 114 papers in Nuclear and High Energy Physics, 107 papers in Astronomy and Astrophysics and 7 papers in Statistical and Nonlinear Physics. Recurrent topics in Steen Hannestad's work include Cosmology and Gravitation Theories (94 papers), Neutrino Physics Research (63 papers) and Astrophysics and Cosmic Phenomena (55 papers). Steen Hannestad is often cited by papers focused on Cosmology and Gravitation Theories (94 papers), Neutrino Physics Research (63 papers) and Astrophysics and Cosmic Phenomena (55 papers). Steen Hannestad collaborates with scholars based in Denmark, Germany and Italy. Steen Hannestad's co-authors include Georg G. Raffelt, Yvonne Y. Y. Wong, Thomas Tram, Edvard Mörtsell, Rasmus S.L. Hansen, Jacob Brandbyge, Sacha Davidson, Shouvik Roy Choudhury, Maria Archidiacono and Jes Madsen and has published in prestigious journals such as Physical Review Letters, The Astrophysical Journal and Monthly Notices of the Royal Astronomical Society.

In The Last Decade

Steen Hannestad

132 papers receiving 5.7k citations

Hit Papers

MeV-scale reheating tempe... 2019 2026 2021 2023 2019 50 100 150 200
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. MeV-scale reheating temperature and thermalization of oscillating neutrinos by radiative and hadronic decays of massive particles
    2019 220 citations Rasmus S.L. Hansen, Thomas Tram et al. Journal of Cosmology and Astroparticle Physics profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Steen Hannestad Denmark 44 5.1k 4.1k 227 203 123 134 5.8k
Sunny Vagnozzi Italy 41 4.0k 0.8× 5.1k 1.3× 400 1.8× 211 1.0× 304 2.5× 65 5.6k
M. Raidal Estonia 48 6.5k 1.3× 4.2k 1.0× 197 0.9× 329 1.6× 185 1.5× 149 7.3k
Michael S. Turner United States 7 2.4k 0.5× 2.3k 0.6× 313 1.4× 249 1.2× 96 0.8× 13 2.9k
Olga Mena Spain 41 4.4k 0.9× 3.6k 0.9× 149 0.7× 69 0.3× 125 1.0× 151 5.3k
Amanda Weltman South Africa 19 2.2k 0.4× 3.1k 0.8× 252 1.1× 318 1.6× 268 2.2× 35 3.3k
Karsten Jedamzik France 31 3.0k 0.6× 3.6k 0.9× 106 0.5× 125 0.6× 196 1.6× 62 4.0k
David F. Mota Norway 45 4.0k 0.8× 5.3k 1.3× 430 1.9× 233 1.1× 361 2.9× 143 5.5k
Julien Lesgourgues France 32 2.3k 0.5× 2.7k 0.7× 170 0.7× 110 0.5× 83 0.7× 66 3.1k
Gianmassimo Tasinato United Kingdom 38 3.0k 0.6× 4.0k 1.0× 406 1.8× 141 0.7× 444 3.6× 106 4.2k
Philippe Brax France 34 3.2k 0.6× 4.1k 1.0× 396 1.7× 653 3.2× 268 2.2× 162 4.5k

Countries citing papers authored by Steen Hannestad

Since Specialization
Citations

This map shows the geographic impact of Steen Hannestad's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Steen Hannestad with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Steen Hannestad more than expected).

Fields of papers citing papers by Steen Hannestad

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Steen Hannestad. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Steen Hannestad. The network helps show where Steen Hannestad may publish in the future.

Co-authorship network of co-authors of Steen Hannestad

This figure shows the co-authorship network connecting the top 25 collaborators of Steen Hannestad. A scholar is included among the top collaborators of Steen Hannestad based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Steen Hannestad. Steen Hannestad is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Hannestad, Steen, et al.. (2025). Calculating Bayesian evidence for inflationary models using connect. Journal of Cosmology and Astroparticle Physics. 2025(3). 43–43. 1 indexed citations
2.
Hannestad, Steen, et al.. (2024). PROSPECT: a profile likelihood code for frequentist cosmological parameter inference. Monthly Notices of the Royal Astronomical Society. 535(4). 3686–3699. 9 indexed citations
3.
Hannestad, Steen, et al.. (2024). Cutting corners: hypersphere sampling as a new standard for cosmological emulators. Journal of Cosmology and Astroparticle Physics. 2024(10). 73–73.
4.
Hannestad, Steen, et al.. (2023). Fast and effortless computation of profile likelihoods using CONNECT. Journal of Cosmology and Astroparticle Physics. 2023(11). 64–64. 6 indexed citations
5.
Hannestad, Steen, et al.. (2023). CONNECT: a neural network based framework for emulating cosmological observables and cosmological parameter inference. Journal of Cosmology and Astroparticle Physics. 2023(5). 25–25. 30 indexed citations
6.
Herold, Laura, et al.. (2023). Decaying dark matter with profile likelihoods. Physical review. D. 107(2). 14 indexed citations
7.
Hannestad, Steen, et al.. (2022). The cosmological simulation code CONCEPT 1.0. Monthly Notices of the Royal Astronomical Society. 513(1). 991–1014. 6 indexed citations
8.
Tram, Thomas, et al.. (2022). Decaying warm dark matter revisited. Journal of Cosmology and Astroparticle Physics. 2022(8). 44–44. 11 indexed citations
9.
Choudhury, Shouvik Roy & Steen Hannestad. (2019). Updated results on neutrino mass and mass hierarchy from cosmology. arXiv (Cornell University). 4 indexed citations
10.
Archidiacono, Maria, Steen Hannestad, Rasmus S.L. Hansen, & Thomas Tram. (2016). Sterile neutrinos with pseudoscalar self-interactions and cosmology. Physical review. D. 93(4). 19 indexed citations
11.
Hannestad, Steen, Rasmus S.L. Hansen, Thomas Tram, & Yvonne Y. Y. Wong. (2015). Active-sterile neutrino oscillations in the early Universe with full collision terms. Journal of Cosmology and Astroparticle Physics. 2015(8). 19–19. 20 indexed citations
12.
Hannestad, Steen, et al.. (2014). Current and future constraints on neutrino physics from cosmology. Journal of Physics Conference Series. 485. 12008–12008. 3 indexed citations
13.
Archidiacono, Maria, Steen Hannestad, Alessandro Mirizzi, Georg G. Raffelt, & Yvonne Y. Y. Wong. (2013). Axion hot dark matter bounds after Planck. Journal of Cosmology and Astroparticle Physics. 2013(10). 20–20. 54 indexed citations
14.
Hannestad, Steen, et al.. (2011). Detecting sterile neutrinos with KATRIN like experiments. Journal of Cosmology and Astroparticle Physics. 2011(2). 11–11. 34 indexed citations
15.
Hannestad, Steen & Thomas Tram. (2011). Sommerfeld enhancement of DM annihilation: resonance structure, freeze-out and CMB spectral bound. Journal of Cosmology and Astroparticle Physics. 2011(1). 16–16. 29 indexed citations
16.
Bjælde, Ole Eggers, et al.. (2008). Neutrino dark energy—revisiting the stability issue. Journal of Cosmology and Astroparticle Physics. 2008(1). 26–26. 62 indexed citations
17.
Cuoco, A., Steen Hannestad, Troels Haugbølle, M. Kachelrieß, & Pasquale Dario Serpico. (2008). Clustering Properties of Ultra–High‐Energy Cosmic Rays and the Search for Their Astrophysical Sources. The Astrophysical Journal. 676(2). 807–815. 9 indexed citations
18.
Enqvist, Kari, Steen Hannestad, & Martin S. Sloth. (2007). Seesaw Mechanism for Scalar Fields as Possible Basis for Dark Energy. Physical Review Letters. 99(3). 31301–31301. 5 indexed citations
19.
Hannestad, Steen & Yvonne Y. Y. Wong. (2007). Neutrino mass from future high redshift galaxy surveys: sensitivity and detection threshold. Journal of Cosmology and Astroparticle Physics. 2007(7). 4–4. 19 indexed citations
20.
Chen, Xuelei, Steen Hannestad, & Robert J. Scherrer. (2002). Cosmic microwave background and large scale structure limits on the interaction between dark matter and baryons. Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields. 65(12). 65 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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