Reconciling cosmic dipolar tensions with a gigaparsec void
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arXiv
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| Format: | Preprint |
| Publié: |
2022
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| _version_ | 1866909605082169344 |
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| author | Cai, Tingqi Ding, Qianhang Wang, Yi |
| author_facet | Cai, Tingqi Ding, Qianhang Wang, Yi |
| contents | Recent observations indicate a $4.9σ$ tension between the CMB and quasar dipoles. This tension challenges the cosmological principle. We propose that if we live in a gigaparsec scale void, the CMB and quasar dipolar tension can be reconciled. This is because we are unlikely to live at the center of the void. And a within 10\% offset from the center will impact the quasars and CMB differently in their dipolar anisotropies. As we consider a large and thick void, our setup can also ease the Hubble tension. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2211_06857 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Reconciling cosmic dipolar tensions with a gigaparsec void Cai, Tingqi Ding, Qianhang Wang, Yi Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory Recent observations indicate a $4.9σ$ tension between the CMB and quasar dipoles. This tension challenges the cosmological principle. We propose that if we live in a gigaparsec scale void, the CMB and quasar dipolar tension can be reconciled. This is because we are unlikely to live at the center of the void. And a within 10\% offset from the center will impact the quasars and CMB differently in their dipolar anisotropies. As we consider a large and thick void, our setup can also ease the Hubble tension. |
| title | Reconciling cosmic dipolar tensions with a gigaparsec void |
| topic | Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2211.06857 |