Interacting dark energy: possible explanation for 21-cm absorption at cosmic dawn
Abstract A recent observation points to an excess in the expected 21-cm brightness temperature from cosmic dawn. In this paper, we present an alternative explanation of this phenomenon, an interaction in the dark sector. Interacting dark energy models have been extensively studied recently and there...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-09-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-6237-7 |
| _version_ | 1819044217487360000 |
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| author | André A. Costa Ricardo C. G. Landim Bin Wang Elcio Abdalla |
| author_facet | André A. Costa Ricardo C. G. Landim Bin Wang Elcio Abdalla |
| author_sort | André A. Costa |
| collection | DOAJ |
| description | Abstract A recent observation points to an excess in the expected 21-cm brightness temperature from cosmic dawn. In this paper, we present an alternative explanation of this phenomenon, an interaction in the dark sector. Interacting dark energy models have been extensively studied recently and there is a whole variety of such in the literature. Here we particularize to a specific model in order to make explicit the effect of an interaction. |
| first_indexed | 2024-12-21T10:09:10Z |
| format | Article |
| id | doaj.art-2a2d19549e99446297968689a7306ae9 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-21T10:09:10Z |
| publishDate | 2018-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-2a2d19549e99446297968689a7306ae92022-12-21T19:07:46ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-09-017891510.1140/epjc/s10052-018-6237-7Interacting dark energy: possible explanation for 21-cm absorption at cosmic dawnAndré A. Costa0Ricardo C. G. Landim1Bin Wang2Elcio Abdalla3Instituto de Física, Universidade de São PauloInstituto de Física, Universidade de São PauloCenter for Gravitation and Cosmology, YangZhou UniversityInstituto de Física, Universidade de São PauloAbstract A recent observation points to an excess in the expected 21-cm brightness temperature from cosmic dawn. In this paper, we present an alternative explanation of this phenomenon, an interaction in the dark sector. Interacting dark energy models have been extensively studied recently and there is a whole variety of such in the literature. Here we particularize to a specific model in order to make explicit the effect of an interaction.http://link.springer.com/article/10.1140/epjc/s10052-018-6237-7 |
| spellingShingle | André A. Costa Ricardo C. G. Landim Bin Wang Elcio Abdalla Interacting dark energy: possible explanation for 21-cm absorption at cosmic dawn European Physical Journal C: Particles and Fields |
| title | Interacting dark energy: possible explanation for 21-cm absorption at cosmic dawn |
| title_full | Interacting dark energy: possible explanation for 21-cm absorption at cosmic dawn |
| title_fullStr | Interacting dark energy: possible explanation for 21-cm absorption at cosmic dawn |
| title_full_unstemmed | Interacting dark energy: possible explanation for 21-cm absorption at cosmic dawn |
| title_short | Interacting dark energy: possible explanation for 21-cm absorption at cosmic dawn |
| title_sort | interacting dark energy possible explanation for 21 cm absorption at cosmic dawn |
| url | http://link.springer.com/article/10.1140/epjc/s10052-018-6237-7 |
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