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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.00237 |
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| _version_ | 1866917020550823936 |
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| author | Stodolsky, Leo Silk, J. |
| author_facet | Stodolsky, Leo Silk, J. |
| contents | We consider possible observable signals from explosive events in the very early universe, ``bursts". These could be expected in connection
with massive black hole or ``baby universe'' formation. We anticipate that such major disruptions of spacetime would be associated with
neutrino and perhaps other pulses. While these seem to be not
detectable directly, we discuss how they could lead to potentially observable signals. We analyze how the pulses from very early times
may ``escape'', that is
propagate to the last scattering epoch at the time $t_{cmb}$ and later,
or alternatively be absorbed earlier, ``contained''. The possibly detectable signals include effects on small regions of the CMB, a soft x-ray resulting from positron production, or a nonthermal addition to
the relic neutrino background. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_00237 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Signals of Bursts from the Very Early Universe Stodolsky, Leo Silk, J. Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena We consider possible observable signals from explosive events in the very early universe, ``bursts". These could be expected in connection with massive black hole or ``baby universe'' formation. We anticipate that such major disruptions of spacetime would be associated with neutrino and perhaps other pulses. While these seem to be not detectable directly, we discuss how they could lead to potentially observable signals. We analyze how the pulses from very early times may ``escape'', that is propagate to the last scattering epoch at the time $t_{cmb}$ and later, or alternatively be absorbed earlier, ``contained''. The possibly detectable signals include effects on small regions of the CMB, a soft x-ray resulting from positron production, or a nonthermal addition to the relic neutrino background. |
| title | Signals of Bursts from the Very Early Universe |
| topic | Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2509.00237 |