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| Autores principales: | , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2406.10309 |
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| _version_ | 1866910500522033152 |
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| author | Mennella, Aniello Arnold, Kam Azzoni, Susanna Baccigalupi, Carlo Banday, A. J. Barreiro, Rita Belén Barron, Darcy Bersanelli, Marco Casas, Francisco J. Casey, Sean de la Hoz, Elena Franceschet, Cristian Jones, Michael E. Genóva-Santos, Ricardo T. Hoyland, R. Lee, Adrian T. Martinez-Gonzalez, Enrique Montonati, Filippo Rubiño-Martín, José-Alberto Taylor, Angela Vielva, Patricio |
| author_facet | Mennella, Aniello Arnold, Kam Azzoni, Susanna Baccigalupi, Carlo Banday, A. J. Barreiro, Rita Belén Barron, Darcy Bersanelli, Marco Casas, Francisco J. Casey, Sean de la Hoz, Elena Franceschet, Cristian Jones, Michael E. Genóva-Santos, Ricardo T. Hoyland, R. Lee, Adrian T. Martinez-Gonzalez, Enrique Montonati, Filippo Rubiño-Martín, José-Alberto Taylor, Angela Vielva, Patricio |
| contents | In this paper we present the European Low Frequency Survey (ELFS), a project that will enable foregrounds-free measurements of the primordial $B$-mode polarization and a detection of the tensor-to-scalar ratio, $r$, to a level $σ(r) = 0.001$ by measuring the Galactic and extra-galactic emissions in the 5--120\,GHz frequency window. Indeed, the main difficulty in measuring the B-mode polarization comes from the fact that many other processes in the Universe also emit polarized microwaves, which obscure the faint Cosmic Microwave Background (CMB) signal. The first stage of this project is being carried out in synergy with the Simons Array (SA) collaboration, installing a 5.5--11\,GHz (X-band) coherent receiver at the focus of one of the three 3.5\,m SA telescopes in Atacama, Chile, followed by the installation of the QUIJOTE-MFI2 in the 10--20 GHz range. We designate this initial iteration of the ELFS program as ELFS-SA. The receivers are equipped with a fully digital back-end that will provide a frequency resolution of 1\,MHz across the band, allowing us to clean the scientific signal from unwanted radio frequency interference, particularly from low-Earth orbit satellite mega constellations. This paper reviews the scientific motivation for ELFS and its instrumental characteristics, and provides an update on the development of ELFS-SA. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_10309 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The European Low Frequency Survey on the Simons Array Mennella, Aniello Arnold, Kam Azzoni, Susanna Baccigalupi, Carlo Banday, A. J. Barreiro, Rita Belén Barron, Darcy Bersanelli, Marco Casas, Francisco J. Casey, Sean de la Hoz, Elena Franceschet, Cristian Jones, Michael E. Genóva-Santos, Ricardo T. Hoyland, R. Lee, Adrian T. Martinez-Gonzalez, Enrique Montonati, Filippo Rubiño-Martín, José-Alberto Taylor, Angela Vielva, Patricio Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics In this paper we present the European Low Frequency Survey (ELFS), a project that will enable foregrounds-free measurements of the primordial $B$-mode polarization and a detection of the tensor-to-scalar ratio, $r$, to a level $σ(r) = 0.001$ by measuring the Galactic and extra-galactic emissions in the 5--120\,GHz frequency window. Indeed, the main difficulty in measuring the B-mode polarization comes from the fact that many other processes in the Universe also emit polarized microwaves, which obscure the faint Cosmic Microwave Background (CMB) signal. The first stage of this project is being carried out in synergy with the Simons Array (SA) collaboration, installing a 5.5--11\,GHz (X-band) coherent receiver at the focus of one of the three 3.5\,m SA telescopes in Atacama, Chile, followed by the installation of the QUIJOTE-MFI2 in the 10--20 GHz range. We designate this initial iteration of the ELFS program as ELFS-SA. The receivers are equipped with a fully digital back-end that will provide a frequency resolution of 1\,MHz across the band, allowing us to clean the scientific signal from unwanted radio frequency interference, particularly from low-Earth orbit satellite mega constellations. This paper reviews the scientific motivation for ELFS and its instrumental characteristics, and provides an update on the development of ELFS-SA. |
| title | The European Low Frequency Survey on the Simons Array |
| topic | Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2406.10309 |