2023/04/17 by Azadeh Moradinezhad Dizgah, Dizgah, Azadeh Moradinezhad, Emilio Bellini +3 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Geophysics and Gravity Measurements #High Energy Physics - Phenomenology (hep-ph) #Radio Astronomy Observations and Technology
paper · pdf · doi:10.48550/arxiv.2304.08471
openalex publication_date 2023/04/17 · openalex created_date 2023/04/20 · openalex updated_date 2026/08/01
Line intensity mapping (LIM) can provide a powerful means to constrain the theory of gravity and the nature of dark energy at low and high redshifts by mapping the large-scale structure (LSS) over many redshift epochs. In this paper, we investigate the potential of the next generation ground-based millimeter-wavelength LIM surveys in constraining several models beyond ΛCDM, involving either a dynamic dark energy component or modifications of the theory of gravity. Limiting ourselves to two-point clustering statistics, we consider the measurements of auto-spectra of several CO rotational lines (from J=2-1 to J=6-5) and the [CII] fine structure line in the redshift range of 0.25