Cosmological-model independent limits on photon mass from FRB and SNe data
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| Format: | Preprint |
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2025
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| _version_ | 1866912354425372672 |
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| author | Lemos, Thais Gonçalves, Rodrigo Carvalho, Joel Alcaniz, Jailson |
| author_facet | Lemos, Thais Gonçalves, Rodrigo Carvalho, Joel Alcaniz, Jailson |
| contents | Electromagnetic emissions from astrophysical sources at cosmological distances can be used to estimate the photon mass, $m_γ$. In this paper, we combine measurements of the dispersion measure ($\mathrm{DM}$) of fast radio bursts (FRB) with the luminosity distance from type Ia supernovae (SNe) to investigate update constraints on the photon rest mass. We derive the expression of $\mathrm{DM}$ dependence concerning a non-vanishing photon mass from a cosmological-model independent approach and constrain the parameter $m_γ$ from measurements of 68 well-localized FRBs and 1048 SNe data from the Pantheon compilation. We consider two scenarios for the baryon fraction in the intergalactic medium ($f_{\mathrm{IGM}}$): one where the value is fixed according to recent reports and another where it is treated as a free parameter, $f_{\mathrm{IGM}} = f_{\mathrm{IGM,0}}$. In the latter case, we find $m_γ = (29.4_{-15.5}^{+5.80}) \times 10^{-51}$ kg, at $1σ$ level. Our results also demonstrate an anticorrelation between $f_{\mathrm{IGM}}$ and $m_γ$, which highlights the importance of analyzing a larger sample of FRBs for a more comprehensive understanding of their properties. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2504_21129 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Cosmological-model independent limits on photon mass from FRB and SNe data Lemos, Thais Gonçalves, Rodrigo Carvalho, Joel Alcaniz, Jailson Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena High Energy Physics - Phenomenology Electromagnetic emissions from astrophysical sources at cosmological distances can be used to estimate the photon mass, $m_γ$. In this paper, we combine measurements of the dispersion measure ($\mathrm{DM}$) of fast radio bursts (FRB) with the luminosity distance from type Ia supernovae (SNe) to investigate update constraints on the photon rest mass. We derive the expression of $\mathrm{DM}$ dependence concerning a non-vanishing photon mass from a cosmological-model independent approach and constrain the parameter $m_γ$ from measurements of 68 well-localized FRBs and 1048 SNe data from the Pantheon compilation. We consider two scenarios for the baryon fraction in the intergalactic medium ($f_{\mathrm{IGM}}$): one where the value is fixed according to recent reports and another where it is treated as a free parameter, $f_{\mathrm{IGM}} = f_{\mathrm{IGM,0}}$. In the latter case, we find $m_γ = (29.4_{-15.5}^{+5.80}) \times 10^{-51}$ kg, at $1σ$ level. Our results also demonstrate an anticorrelation between $f_{\mathrm{IGM}}$ and $m_γ$, which highlights the importance of analyzing a larger sample of FRBs for a more comprehensive understanding of their properties. |
| title | Cosmological-model independent limits on photon mass from FRB and SNe data |
| topic | Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2504.21129 |