TY - RPRT TI - Enhanced matter power spectrum from axion kination after Big Bang nucleosynthesis AU - Co, Raymond T. [Indiana Univ., Bloomington, IN (United States)] (ORCID:0000000283957056) AU - Fernandez, Nicolas [Rutgers Univ., Piscataway, NJ (United States)] (ORCID:000000023573339X) AU - Ghalsasi, Akshay [Harvard Univ., Cambridge, MA (United States)] (ORCID:0000000158804835) AU - Harigaya, Keisuke [Univ. of Chicago, IL (United States). Enrico Fermi Inst.; Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP)] (ORCID:0000000165163386) AU - Shelton, Jessie [Univ. of Illinois at Urbana-Champaign, IL (United States)] (ORCID:0000000209596360) PY - 2026 DO - 10.1088/1475-7516/2026/02/082 UR - https://www.osti.gov/biblio/3749915 ID - 3749915 ER -