January 29, 2026 article Open access Beyond the power spectrum: A new framework for nonstationary fields with applications to light-cone effects in line intensity mapping Physical review. D/Physical review. D. DOI: 10.1103/tp8r-pfdw Full text (OA) OpenAlex Authors 0 Author list not loaded yet. Cited by 0 stored of 0 References 3 Search Sort Most cited Newest Oldest Patent citations Title Any typearticle review book-chapter conference-paper preprint dissertation book dataset other Any fieldAgricultural and Biological Sciences Arts and Humanities Biochemistry, Genetics and Molecular Biology Business, Management and Accounting Chemical Engineering Chemistry Computer Science Decision Sciences Dentistry Earth and Planetary Sciences Economics, Econometrics and Finance Energy Engineering Environmental Science Health Professions Immunology and Microbiology Materials Science Mathematics Medicine Neuroscience Nursing Pharmacology, Toxicology and Pharmaceutics Physics and Astronomy Psychology Social Sciences Veterinary Open access Planck 2018 results 2020 Astronomy and Astrophysics article Physics and Astronomy Cosmology and Gravitation Theories Open access 14,249 citations Euclid preparation 2022 Astronomy and Astrophysics article Physics and Astronomy Astronomy and Astrophysical Research Open access 505 citations Improved upper limits on the 21 cm signal power spectrum of neutral hydrogen at z ≈ 9.1 from LOFAR 2020 Monthly Notices of the Royal Astronomical Society article Physics and Astronomy Radio Astronomy Observations and Technology Open access 308 citations 3 results