BS
Björn Malte Schäfer
astro-ph.COastro-ph.IMastro-phastro-ph.GAhep-phgr-qcphysics.data-ancond-mat.stat-mechastro-ph.HEcs.AI
On Valency
published · living versionsW_92c8zkd2·v1 · currentpublished
Realistic systematic biases induced by residual intrinsic alignments in cosmic shear surveys
with Robert Reischke
1 version
Preprints & journals
104 papers in the corpus · 2001–2026A Global Overview of Starobinsky Inflation beyond slow-roll with CMB-BAO data2609.19296v1 · Tarun, Tanmoy Modak, Bjorn Malte Schafer2026 · 0 citationsarXiv
Microcanonical Hamiltonian Monte Carlo and the Helmholtz Theorem2609.07620v1 · Heinrich von Campe, Bjoern Malte Schaefer2026 · 0 citationsarXiv
Thermodynamic Cyclic Processes with Markov Samplers in Bayesian Inference2609.07660v1 · Heinrich von Campe, Bjoern Malte Schaefer2026 · 0 citationsarXiv
The Latent Information Geometry of Jet Classification2603.02310v2 · Rebecca Maria Kuntz, Tilman Plehn, Bjorn Malte Schafer et al.2026 · 0 citationsarXiv
Visualisation of spherical harmonics in Peirce's quincuncial projection2601.17045v1 · Bjoern Malte Schaefer2026 · 0 citationsarXiv
Lagrangian neural ODEs: Measuring the existence of a Lagrangian with Helmholtz metrics2510.06367v2 · Luca Wolf, Tobias Buck, Bjoern Malte Schaefer2025 · 0 citationsarXiv
Starobinsky in Stereo: SKA-CMB Synergy in SBI2508.10094v2 · Benedikt Schosser, Caroline Heneka, Bjorn Malte Schafer2025 · 0 citationsarXiv
Approximating non-Gaussian Bayesian partitions with normalising flows: statistics, inference and application to cosmology2501.04791v3 · Tobias Rospel, Adrian Schlosser, Bjorn Malte Schafer2025 · 0 citationsarXiv
Partition function approach to non-Gaussian likelihoods: information theory and state variables for Bayesian inference2411.13625v2 · Rebecca Maria Kuntz, Heinrich von Campe, Tobias Rospel et al.2024 · 1 citationarXiv
On the full non-Gaussian Surprise statistic and the cosmological concordance between DESI, SDSS and Pantheon+2408.08385v2 · Pedro Riba Mello, Miguel Quartin, Bjoern Malte Schaefer et al.2024 · 0 citationsThe Open Journal of Astrophysics 8, 2025
Markov Walk Exploration of Model Spaces: Bayesian Selection of Dark Energy Models with Supernovae2407.06259v4 · Benedikt Schosser, Tobias Rospel, Bjoern Malte Schaefer2024 · 0 citationsarXiv
PINNferring the Hubble Function with Uncertainties2403.13899v1 · Lennart Rover, Bjorn Malte Schafer, Tilman Plehn2024 · 4 citationsarXiv
Bayesian distances for quantifying tensions in cosmological inference and the surprise statistic2402.19100v2 · Benedikt Schosser, Pedro Riba Mello, Miguel Quartin et al.2024 · 0 citationsarXiv
Friedmann-Robertson-Walker spacetimes from the perspective of geometric algebra2402.16680v3 · Pablo Banon Perez, Bjoern Malte Schaefer, Maarten DeKieviet2024 · 0 citationsarXiv
A unified linear intrinsic alignment model for elliptical and disc galaxies and the resulting ellipticity spectra2312.03353v2 · Basundhara Ghosh, Kai Nussbaumer, Eileen Sophie Giesel et al.2023 · 4 citationsarXiv
Partition function approach to non-Gaussian likelihoods: macrocanonical partitions and replicating Markov-chains2311.16218v3 · Maximilian Philipp Herzog, Heinrich von Campe, Rebecca Maria Kuntz et al.2023 · 0 citationsThe Open Journal of Astrophysics, 7 (2024)
Partition function approach to non-Gaussian likelihoods: partitions for the inference of functions and the Fisher-functional2306.17224v2 · Rebecca Maria Kuntz, Maximilian Philipp Herzog, Heinrich von Campe et al.2023 · 2 citationsarXiv
Partition function approach to non-Gaussian likelihoods: physically motivated convergence criteria for Markov-chains2305.07061v1 · Lennart Rover, Heinrich von Campe, Maximilian Philipp Herzog et al.2023 · 2 citationsarXiv
Constructing Exact Confidence Regions on Parameter Manifolds of Non-Linear Models2211.03421v1 · Rafael Arutjunjan, Bjoern Malte Schaefer, Clemens Kreutz2022 · 0 citationsarXiv
A weak lensing perspective on nonlinear structure formation with fuzzy dark matter2211.01523v3 · Alexander Kunkel, Tzihong Chiueh, Bjorn Malte Schafer2022 · 6 citationsarXiv
Cornering Extended Starobinsky Inflation with CMB and SKA2210.05698v2 · Tanmoy Modak, Lennart Rover, Bjorn Malte Schafer et al.2022 · 12 citationsarXiv
Partition function approach to non-Gaussian likelihoods: Formalism and expansions for weakly non-Gaussian cosmological inference2210.03138v2 · Lennart Rover, Lea Carlotta Bartels, Bjorn Malte Schafer2022 · 3 citationsarXiv
Etherington duality breaking: gravitational lensing in non-metric spacetimes versus intrinsic alignments2208.07197v2 · Eileen Sophie Giesel, Basundhara Ghosh, Bjorn Malte Schafer2022 · 1 citationarXiv
On the Cosmic Web Elongation in Fuzzy Dark Matter Cosmologies: Effects on Density Profiles, Shapes and Alignments of Halos2208.03827v2 · Tibor Dome, Anastasia Fialkov, Philip Mocz et al.2022 · 23 citationsMNRAS, 519, 4183-4202 (2022)
Three-dimensional weak gravitational lensing of the 21-cm radiation background2205.03713v1 · Jose Agustin Lozano Torres, Bjoern Malte Schaefer2022 · 0 citationsarXiv
Probing the Inflaton Potential with SKA2112.09148v2 · Tanmoy Modak, Tilman Plehn, Lennart Rover et al.2021 · 5 citationsSciPost Phys. Core 5, 037 (2022)
Gravitational wave induced baryon acoustic oscillations2107.10283v1 · Christian Doring, Salvador Centelles Chuli'a, Manfred Lindner et al.2021 · 7 citationsSciPost Phys. 12, 114 (2022)
Intrinsic and extrinsic gravitational flexions2107.09000v3 · Eileen Sophie Giesel, Basundhara Ghosh, Bjoern Malte Schaefer2021 · 3 citationsarXiv
Testing modified (Horndeski) gravity by combining intrinsic galaxyalignments with cosmic shear2103.01657v1 · Robert Reischke, Victor Bosca, Tim Tugendhat et al.2021 · 7 citationsarXiv
Intrinsic Alignments in IllustrisTNG and their implications for weak lensing: Tidal shearing and tidal torquing mechanisms put to the test2010.07951v1 · Jolanta Zjupa, Bjorn Malte Schafer, Oliver Hahn2020 · 20 citationsarXiv
Intrinsic and extrinsic correlations of galaxy shapes and sizes in weak lensing data2005.04604v2 · Basundhara Ghosh, Ruth Durrer, Bjoern Malte Schaefer2020 · 14 citationsarXiv
Information entropy in cosmological inference problems2005.02035v1 · Ana Marta Pinho, Robert Reischke, Marie Teich et al.2020 · 4 citationsarXiv
Information geometry in cosmological inference problems2005.01057v2 · Eileen Giesel, Robert Reischke, Bjorn Malte Schafer et al.2020 · 11 citationsarXiv
Post-inflationary axion isocurvature perturbations facing CMB and large-scale structure2004.02926v2 · Martin Feix, Steffen Hagstotz, Andreas Pargner et al.2020 · 20 citationsarXiv
Symmetric gravitational closure2003.07109v1 · Maximilian Dull, Nils L. Fischer, Bjoern Malte Schaefer et al.2020 · 1 citationarXiv
Optimising tomography for weak gravitational lensing surveys2002.12695v2 · Marvin Sipp, Bjoern Malte Schaefer, Robert Reischke2020 · 7 citationsMonthly Notices of the Royal Astronomical Society, Volume 501, Issue 1, February 2021, Pages 683-692
Realistic systematic biases induced by residual intrinsic alignments in cosmic shear surveys1910.05994v1 · Robert Reischke, Bjorn Malte Schafer2019 · 0 citationsarXivon Valency
Isocurvature bounds on axion-like particle dark matter in the post-inflationary scenario1903.06194v2 · Martin Feix, Johann Frank, Andreas Pargner et al.2019 · 29 citationsJCAP05(2019)021
KiDS+GAMA: Constraints on Horndeski gravity from combined large-scale structure probes1901.03686v2 · Alessio Spurio Mancini, Fabian Kohlinger, Benjamin Joachimi et al.2019 · 60 citationsMNRAS, Volume 490, Issue 2, December 2019, Pages 2155-2177
Environmental dependence of ellipticity correlation functions of intrinsic alignments1812.06918v1 · Robert Reischke, Bjorn Malte Schafer2018 · 7 citationsJournal of Cosmology and Astroparticle Physics, Issue 04, article id. 031 (2019)
Influence of the local Universe on weak gravitational lensing surveys1812.06922v2 · Robert Reischke, Bjorn malte Schafer, Krzysztof Bolejko et al.2018 · 7 citationsMonthly Notices of the Royal Astronomical Society, Volume 486, Issue 4, p.5061-5073, 2019
The Dark Universe - Exercises and Proceedings from the German-Italian WE Heraeus Summer School held in 2017 in Heidelberg1808.07551v2 · Stefan S. Brems, Bjorn Malte Schafer, Niccolo Bucciantini et al.2018 · 0 citationsarXiv
3D cosmic shear: numerical challenges, 3D lensing random fields generation and Minkowski Functionals for cosmological inference1807.11461v3 · A. Spurio Mancini, P. L. Taylor, R. Reischke et al.2018 · 14 citationsPhys. Rev. D 98, 103507 (2018)
Statistical separation of weak gravitational lensing and intrinsic ellipticities based on galaxy colour information1805.01240v3 · Tim M. Tugendhat, Robert Reischke, Bjoern Malte Schaefer2018 · 8 citationsarXiv
Investigating scalar-tensor-gravity with statistics of the cosmic large-scale structure1804.02441v2 · Robert Reischke, Alessio Spurio Mancini, Bjorn Malte Schafer et al.2018 · 30 citationsMonthly Notices of the Royal Astronomical Society 2019, Volume 482, Issue 3, p.3274-3287
Testing (modified) gravity with 3D and tomographic cosmic shear1801.04251v2 · A. Spurio Mancini, R. Reischke, V. Pettorino et al.2018 · 50 citationsMNRAS, Volume 480, Issue 3, 1 November 2018, Pages 3725-3738
Gravitational corrections to light propagation in a perturbed FLRW-universe and corresponding weak lensing spectra1801.03325v1 · Carolina Cuesta-Lazaro, Arnau Quera-Bofarull, Robert Reischke et al.2018 · 7 citationsarXiv
Imitating intrinsic alignments: A bias to the CMB lensing-galaxy shape cross-correlation power spectrum induced by the large-scale structure bispectrum1709.04444v1 · Philipp M. Merkel, Bjoern Malte Schaefer2017 · 11 citationsarXiv
Angular ellipticity correlations in a composite alignment model for elliptical and spiral galaxies and inference from weak lensing1709.02630v2 · Tim M. Tugendhat, Bjoern Malte Schaefer2017 · 24 citationsarXiv
Parameter constraints from weak lensing tomography of galaxy shapes and cosmic microwave background fluctuations1707.08153v1 · Philipp M. Merkel, Bjoern Malte Schaefer2017 · 15 citationsarXiv
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