2022/10/28 by Fabrizio Tamburini, Tamburini, Fabrizio, Ignazio Licata +1
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Gamma-ray bursts and supernovae #General Relativity and Quantum Cosmology (gr-qc) #High Energy Astrophysical Phenomena (astro-ph.HE) #High Energy Physics - Phenomenology (hep-ph) #Solar and Stellar Astrophysics (astro-ph.SR) #Space Science and Extraterrestrial Life
paper · pdf · doi:10.48550/arxiv.2210.15983
openalex publication_date 2022/10/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
From new results presented in the literature we discuss the hypothesis that the ultrafast periodic spectral modulations at fS ≃ 0.607 THz found in the spectra of 236 stars of the Sloan Digital Sky Survey (SDSS) [1] were due to oscillations induced by dark matter (DM) cores in their centers [2] behaving as oscillating boson stars [3,4]. Two additional frequencies in the redshift-corrected SDSS galactic spectra were found [5], f1,G ≃ 9.5 THz, the beating between fS and a spurious frequency, f2,G ≃ 8.9 THz, introduced during the data analysis [6]. The indication that fS can be real is its detection in a real solar spectrum but not in the Kurucz's artificial solar spectrum [6,7,8]. Then, independent SETI observations of four of these stars could not confirm with high confidence, but not completely exclude, the presence of fS in their power spectra [9] while the radio SETI deep-learning analysis with artificial intelligence confirmed indirectly fS detecting a narrowband Doppler drifting of radio signals in two of these stars over a sample of 7 with a high S/N [10]. Numerical simulations suggest that the drifting can be due to frequency and phase modulation in time of the observed frequencies at 1.3-1.7 GHz with fS. This would imply a DM upper mass limit ma \lesssim 2.4 × 103~ μeV [2] which also agrees with the results from the gamma ray burst GRB221009A [11,12,13], laser interferometry [14], suggesting new physics for the muon g-2 anomaly [15].