Blueshift of light rays induced by gravitational wave memory effect
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866915936133447680 |
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| author | Carneiro, F. L. Ulhoa, S. C. Maluf, J. W. |
| author_facet | Carneiro, F. L. Ulhoa, S. C. Maluf, J. W. |
| contents | The article deals with photon propagation in pp-wave spacetimes in the strong gravitational-wave regime and its consequences for redshift measurements. We show that null geodesics crossing a localized pp-wave pulse exhibit an energy memory effect, producing a finite asymptotic shift in the photon frequency measured by static observers. This path-dependent contribution acts directly on the redshift observable and may help account for divergent interpretations of supernova redshift data in the presence of intervening gravitational radiation. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2604_12135 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Blueshift of light rays induced by gravitational wave memory effect Carneiro, F. L. Ulhoa, S. C. Maluf, J. W. General Relativity and Quantum Cosmology The article deals with photon propagation in pp-wave spacetimes in the strong gravitational-wave regime and its consequences for redshift measurements. We show that null geodesics crossing a localized pp-wave pulse exhibit an energy memory effect, producing a finite asymptotic shift in the photon frequency measured by static observers. This path-dependent contribution acts directly on the redshift observable and may help account for divergent interpretations of supernova redshift data in the presence of intervening gravitational radiation. |
| title | Blueshift of light rays induced by gravitational wave memory effect |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2604.12135 |