Johannes Røsok Eskilt

Guest researcher - Institutt for teoretisk astrofysikk

Email j.r.eskilt@astro.uio.no

Username

Visiting address Sem Sælands vei 13 0371 OSLO

Postal address Postboks 1029 Blindern 0315 OSLO

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Academic Interests

Isotropic Cosmic Birefringence
CMB, Cosmology, and Planck
Swampland Conjectures and Dark Energy

Education

2019-2020 M.Sc in Fundamental Theoretical Physics, Imperial College London
2017-2018 Visiting Student, University of California - Berkeley
2014-2019 M.Tech in Applied Physics, Norwegian University of Science and Technology

Awards and Scholarships

2017-2018 Fulbright Scholarship, University of California - Berkeley
2016-2017 Studforsk Stipend, Norwegian University of Science and Technology

Tags: Cosmic Birefringence, CMB, Planck, Cosmology

Akrami, Yashar; Anselmi, Stefano; Copi, Craig J.; Eskilt, Johannes Røsok; Jaffe, Andrew H. & Kosowsky, Arthur [Show all 15 contributors for this article] (2024). Promise of Future Searches for Cosmic Topology. Physical Review Letters. ISSN 0031-9007. 132(17). doi: 10.1103/PhysRevLett.132.171501. Full text in Research Archive
Eskilt, Johannes Røsok; Akrami, Yashar; Anselmi, Stefano; Copi, Craig J.; Jaffe, Andrew H. & Kosowsky, Arthur [Show all 14 contributors for this article] (2024). Cosmic topology. Part IIa. Eigenmodes, correlation matrices, and detectability of orientable Euclidean manifolds. Journal of Cosmology and Astroparticle Physics (JCAP). ISSN 1475-7516. 2024(3). doi: 10.1088/1475-7516/2024/03/036.
Eskilt, Johannes Røsok; Watts, Duncan; Aurvik, Ragnhild; Basyrov, Artem; Bersanelli, Marco & Brilenkov, Maksym [Show all 30 contributors for this article] (2023). Cosmoglobe DR1 results II. Constraints on isotropic cosmic birefringence from reprocessed WMAP and Planck LFI data. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 679. doi: 10.1051/0004-6361/202346829. Full text in Research Archive
Watts, Duncan; Basyrov, Artem; Eskilt, Johannes Røsok; Galloway, Mathew; Gjerløw, Eirik & Hergt, L.T. [Show all 32 contributors for this article] (2023). COSMOGLOBE DR1 results: I. Improved Wilkinson Microwave Anisotropy Probe maps through Bayesian end-to-end analysis. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 679. doi: 10.1051/0004-6361/202346414. Full text in Research Archive
Eskilt, Johannes Røsok; Lee, Katherine; Watts, Duncan; Anshul, V.; Aurvik, Ragnhild & Basyrov, Artem [Show all 22 contributors for this article] (2023). COSMOGLOBE: Towards end-to-end CMB cosmological parameter estimation without likelihood approximations. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 678. doi: 10.1051/0004-6361/202347358. Full text in Research Archive
Eskilt, Johannes Røsok; Herold, Laura; Komatsu, Eiichiro; Murai, Kai; Namikawa, Toshiya & Naokawa, Fumihiro (2023). Constraints on Early Dark Energy from Isotropic Cosmic Birefringence. Physical Review Letters. ISSN 0031-9007. 131(12). doi: 10.1103/PhysRevLett.131.121001. Full text in Research Archive
Gerakakis, S.; Brilenkov, Maksym; Ieronymaki, M.; San, Metin; Watts, Duncan & Andersen, Kristian Joten [Show all 41 contributors for this article] (2023). From BeyondPlanck to Cosmoglobe: Open Science, Reproducibility, and Data Longevity. The Open Journal of Astrophysics. 6. doi: 10.21105/astro.2205.11262. Full text in Research Archive
Colombo, L.P.L.; Eskilt, Johannes Røsok; Paradiso, S.; Thommesen, Harald; Andersen, Kristian Joten & Aurvik, Ragnhild [Show all 39 contributors for this article] (2023). BeyondPlanck: XI. Bayesian CMB analysis with sample-based end-to-end error propagation. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202244619. Full text in Research Archive
Paradiso, S.; Colombo, L.P.L.; Andersen, Kristian Joten; Aurvik, Ragnhild; Banerji, Ranajoy & Basyrov, Artem [Show all 40 contributors for this article] (2023). BeyondPlanck: XII. Cosmological parameter constraints with end-to-end error propagation. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202244060. Full text in Research Archive
Andersen, Kristian Joten; Aurvik, Ragnhild; Banerji, Ranajoy; Basyrov, Artem; Bersanelli, M. & Bertocco, S. [Show all 43 contributors for this article] (2023). BeyondPlanck: I. Global Bayesian analysis of the Planck Low Frequency Instrument data. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202244953. Full text in Research Archive
Andersen, Kristian Joten; Herman, Daniel Christopher; Aurvik, Ragnhild; Banerji, Ranajoy; Basyrov, Artem & Bersanelli, M. [Show all 43 contributors for this article] (2023). BeyondPlanck: XIII. Intensity foreground sampling, degeneracies, and priors. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202243186. Full text in Research Archive
Ihle, Håvard Tveit; Bersanelli, M.; Franceschet, C.; Gjerløw, Eirik; Andersen, Kristian Joten & Aurvik, Ragnhild [Show all 40 contributors for this article] (2023). BeyondPlanck: VI. Noise characterization and modeling. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202243619. Full text in Research Archive
Brilenkov, Maksym; Fornazier, K.S.F.; Hergt, L.T.; Hoerning, G.A.; Marins, A. & Murokoshi, T. [Show all 50 contributors for this article] (2023). BeyondPlanck: IV. Simulations and validation. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202244958. Full text in Research Archive
Watts, Duncan; Galloway, Mathew; Ihle, Håvard Tveit; Andersen, Kristian Joten; Aurvik, Ragnhild & Banerji, Ranajoy [Show all 42 contributors for this article] (2023). From BeyondPlanck to Cosmoglobe: Preliminary WMAP Q-band analysis. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202243410. Full text in Research Archive
Basyrov, Artem; Suur-Uski, A.-S.; Colombo, L.P.L.; Eskilt, Johannes Røsok; Paradiso, S. & Andersen, Kristian Joten [Show all 39 contributors for this article] (2023). BeyondPlanck: X. Planck Low Frequency Instrument frequency maps with sample-based error propagation. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202244819. Full text in Research Archive
Keihänen, Elina; Suur-Uski, A.-S.; Andersen, Kristian Joten; Aurvik, Ragnhild; Banerji, Ranajoy & Basyrov, Artem [Show all 41 contributors for this article] (2023). BeyondPlanck: II. CMB mapmaking through Gibbs sampling. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202142799. Full text in Research Archive
Galloway, Mathew; Andersen, Kristian Joten; Aurvik, Ragnhild; Banerji, Ranajoy; Bersanelli, M. & Bertocco, S. [Show all 40 contributors for this article] (2023). BeyondPlanck: III. Commander3. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202243137. Full text in Research Archive
Galloway, Mathew; Reinecke, M.; Andersen, Kristian Joten; Aurvik, Ragnhild; Banerji, Ranajoy & Bersanelli, M. [Show all 40 contributors for this article] (2023). BeyondPlanck: VIII. Efficient sidelobe convolution and corrections through spin harmonics. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 675. doi: 10.1051/0004-6361/202243138. Full text in Research Archive
Diego-Palazuelos, P.; Martínez-González, E.; Vielva, P.; Barreiro, R.; Tristram, M. & de la Hoz, E. [Show all 14 contributors for this article] (2023). Robustness of cosmic birefringence measurement against Galactic foreground emission and instrumental systematics. Journal of Cosmology and Astroparticle Physics (JCAP). ISSN 1475-7516. 2023(1). doi: 10.1088/1475-7516/2023/01/044.
Petersen, Pip; Akrami, Yashar; Copi, Craig J.; Jaffe, Andrew H.; Kosowsky, Arthur & Starkman, Glenn D. [Show all 11 contributors for this article] (2023). Cosmic topology. Part I. Limits on orientable Euclidean manifolds from circle searches. Journal of Cosmology and Astroparticle Physics (JCAP). ISSN 1475-7516. 2023(1). doi: 10.1088/1475-7516/2023/01/030.
Eskilt, Johannes Røsok & Komatsu, Eiichiro (2022). Improved constraints on cosmic birefringence from the WMAP and Planck cosmic microwave background polarization data. Physical Review D. ISSN 2470-0010. 106(6). doi: 10.1103/PhysRevD.106.063503. Full text in Research Archive
Eskilt, Johannes Røsok (2022). Frequency-dependent constraints on cosmic birefringence from the LFI and HFI Planck Data Release 4. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 662. doi: 10.1051/0004-6361/202243269. Full text in Research Archive
Eskilt, Johannes Røsok; Akrami Cheghasiahi, Yashar; Solomon, Adam R. & Vardanyan, Valeri (2022). Cosmological dynamics of multifield dark energy. Physical Review D. ISSN 2470-0010. 106(2). doi: 10.1103/PhysRevD.106.023512. Full text in Research Archive
Diego-Palazuelos, P.; Eskilt, Johannes Røsok; Minami, Y.; Tristram, M.; Sullivan, R. M. & Banday, A. J. [Show all 15 contributors for this article] (2022). Cosmic Birefringence from the Planck Data Release 4. Physical Review Letters. ISSN 0031-9007. 128(9). doi: 10.1103/PhysRevLett.128.091302. Full text in Research Archive
Eskilt, Johannes Røsok; Amundsen, Morten; Banerjee, Niladri & Linder, Jacob (2019). Long-ranged triplet supercurrent in a single in-plane ferromagnet with spin-orbit coupled contacts to superconductors. Physical review B (PRB). ISSN 2469-9950. 100(22). doi: 10.1103/PhysRevB.100.224519. Full text in Research Archive

View all works in Cristin

Eskilt, Johannes Røsok (2016). Sommerforsker 2016: Jeg har jobbet med verdens kuleste væske.
Eskilt, Johannes Røsok; Wehus, Ingunn Kathrine; Eriksen, Hans Kristian Kamfjord; Watts, Duncan; Komatsu, Eiichiro & Hansen, Frode Kristian (2023). Signatures of New Physics in the CMB: From Cosmic Topology to Cosmic Birefringence. Faculty of Mathematics and Natural Sciences. ISSN 1501-7710.