The Simons Observatory: Design, Integration, and Current Status of Small Aperture Telescopes
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| author | Mangu, Aashrita Corbett, Lance Bhimani, Sanah Carl, Fred Day-Weiss, Samuel DiGia, Brooke Errard, Josquin Galitzki, Nicholas Hazumi, Masashi Henderson, Shawn W. Kabra, Varun Miller, Amber Moore, Jenna Song, Xue Tsan, Tran Wang, Yuhan Zonca, Andrea |
| author_facet | Mangu, Aashrita Corbett, Lance Bhimani, Sanah Carl, Fred Day-Weiss, Samuel DiGia, Brooke Errard, Josquin Galitzki, Nicholas Hazumi, Masashi Henderson, Shawn W. Kabra, Varun Miller, Amber Moore, Jenna Song, Xue Tsan, Tran Wang, Yuhan Zonca, Andrea |
| contents | The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment located in the Atacama Desert in Chile at an elevation of 5200 meters, nominally consisting of an array of three 0.42-meter small aperture telescopes (SATs) and one 6-meter large aperture telescope (LAT). SO will make accurate measurements of the CMB temperature and polarization spanning six frequency bands ranging from 27 to 280 GHz, fielding a total of $\sim$68,000 detectors covering angular scales between one arcminute to tens of degrees. In this paper, we focus on the SATs, which are tailored to search for primordial gravitational waves, with the primary science goal of measuring the primordial tensor-to-scalar ratio \textit{r} at a target level of $σ(r) \approx 0.003$. We discuss the design drivers, scientific impact, and current deployment status of the three SATs, which are scheduled to start taking data in the coming year. The SATs aim to map 10\% of the sky at a 2 $μ$K-arcmin noise level observing at mid-frequencies (93/145 GHz), with additional ultra-high-frequency (225/280 GHz) and low-frequency (27/39 GHz) targets to yield galactic foreground-subtracted measurements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_01200 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The Simons Observatory: Design, Integration, and Current Status of Small Aperture Telescopes Mangu, Aashrita Corbett, Lance Bhimani, Sanah Carl, Fred Day-Weiss, Samuel DiGia, Brooke Errard, Josquin Galitzki, Nicholas Hazumi, Masashi Henderson, Shawn W. Kabra, Varun Miller, Amber Moore, Jenna Song, Xue Tsan, Tran Wang, Yuhan Zonca, Andrea Instrumentation and Methods for Astrophysics The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment located in the Atacama Desert in Chile at an elevation of 5200 meters, nominally consisting of an array of three 0.42-meter small aperture telescopes (SATs) and one 6-meter large aperture telescope (LAT). SO will make accurate measurements of the CMB temperature and polarization spanning six frequency bands ranging from 27 to 280 GHz, fielding a total of $\sim$68,000 detectors covering angular scales between one arcminute to tens of degrees. In this paper, we focus on the SATs, which are tailored to search for primordial gravitational waves, with the primary science goal of measuring the primordial tensor-to-scalar ratio \textit{r} at a target level of $σ(r) \approx 0.003$. We discuss the design drivers, scientific impact, and current deployment status of the three SATs, which are scheduled to start taking data in the coming year. The SATs aim to map 10\% of the sky at a 2 $μ$K-arcmin noise level observing at mid-frequencies (93/145 GHz), with additional ultra-high-frequency (225/280 GHz) and low-frequency (27/39 GHz) targets to yield galactic foreground-subtracted measurements. |
| title | The Simons Observatory: Design, Integration, and Current Status of Small Aperture Telescopes |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2412.01200 |