2016/03/31 by N. Malsawmtluangi, P. K. Suresh · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Angular spectrum method #Astronomy #Astrophysics #Cosmic microwave background #Cosmology and Gravitation Theories #Diffraction #Geophysics and Gravity Measurements #Gravitational wave #Inflation (cosmology) #Mode (computer interface) #Optics #Physics #Planck #Pulsars and Gravitational Waves Research #Quantum mechanics #Spectral density #Spectrum (functional analysis) #Vacuum state #gr-qc
paper · pdf · doi:10.1007/s10509-021-04017-2
published in Astrophysics and Space Science 366(11) (Springer Science+Business Media) · 11 pages, 7 figures
openalex publication_date 2021/11/01 · arxiv created 2021/11/26 · arxiv updated 2021/11/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The BB-mode correlation angular power spectrum of CMB is studied for primordial massive gravitational waves for several inflation models. The comparative study of the angular power spectrum with the joint BICEP2/Keck Array and Planck data suggests further constraint on the lower and upper bounds on the mass of primordial gravitons. Assuming a modified dispersion relation, the mass of primordial graviton is also calculated. The resulting constraint also agrees with other theoretical estimates.