Perna, G. (2023) Cross-correlation of the Astrophysical Gravitational Wave Background with the Cosmic Microwave Background. Il nuovo cimento C, 46 (3). pp. 1-9. ISSN 1826-9885
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Abstract
This article is based on the talk I delivered in “Sezione 3: Astrofisica” of the 108th National Congress of the Italian Physical Society on 12th September 2022. The session was dedicated to Gravitational Waves (GW) and Cosmology. Since the first detection by LIGO/Virgo, GW physics has been very promising, providing a new complementary way to study and understand our Universe. In this work I focused on the analysis and characterization of the Astrophysical Gravitational Wave Background (AGWB) anisotropies, generated at the production and during the propagation of the signal. The physics behind them shows many analogies with the cosmic microwave background ones; thus I focus on the extent they can be used to constrain cosmology, by means of the cross-correlation between the two signals. More specifically, I aim to constrain primordial non-Gaussianity studying its impact on the bias of astrophysical sources of GW. For the purpose, I developed a code to model the astrophysical sources and I modified the code CLASS, implementing the AGWB anisotropies.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 29 Jan 2024 12:17 |
| Last Modified: | 29 Jan 2024 12:17 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/22608 |
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