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The Simons Observat...
The Simons Observatory : Beam Characterization for the Small Aperture Telescopes
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- Dachlythra, Nadia, 1993- (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Duivenvoorden, Adriaan J. (author)
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- Gudmundsson, Jón E., 1985- (author)
- Stockholms universitet,Oskar Klein-centrum för kosmopartikelfysik (OKC),Fysikum,University of Iceland, Iceland
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Hasselfield, Matthew (author)
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Coppi, Gabriele (author)
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- Adler, Alexandre E. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Alonso, David (author)
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Azzoni, Susanna (author)
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Chesmore, Grace E. (author)
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Fabbian, Giulio (author)
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Ganga, Ken (author)
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Gerras, Remington G. (author)
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Jaffe, Andrew H. (author)
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Johnson, Bradley R. (author)
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Keating, Brian (author)
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Keskitalo, Reijo (author)
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Kisner, Theodore S. (author)
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Krachmalnicoff, Nicoletta (author)
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Lungu, Marius (author)
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Matsuda, Frederick (author)
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Naess, Sigurd (author)
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Page, Lyman (author)
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Puddu, Roberto (author)
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Puglisi, Giuseppe (author)
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Simon, Sara M. (author)
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Teply, Grant (author)
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Tsan, Tran (author)
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Wollack, Edward J. (author)
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Wolz, Kevin (author)
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Xu, Zhilei (author)
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(creator_code:org_t)
- 2024
- 2024
- English.
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In: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 961:1
- Related links:
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
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- We use time-domain simulations of Jupiter observations to test and develop a beam reconstruction pipeline for the Simons Observatory Small Aperture Telescopes. The method relies on a mapmaker that estimates and subtracts correlated atmospheric noise and a beam fitting code designed to compensate for the bias caused by the mapmaker. We test our reconstruction performance for four different frequency bands against various algorithmic parameters, atmospheric conditions, and input beams. We additionally show the reconstruction quality as a function of the number of available observations and investigate how different calibration strategies affect the beam uncertainty. For all of the cases considered, we find good agreement between the fitted results and the input beam model within an ∼1.5% error for a multipole range ℓ = 30–700 and an ∼0.5% error for a multipole range ℓ = 50–200. We conclude by using a harmonic-domain component separation algorithm to verify that the beam reconstruction errors and biases observed in our analysis do not significantly bias the Simons Observatory r-measurement
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Dachlythra, Nadi ...
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Duivenvoorden, A ...
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Gudmundsson, Jón ...
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Hasselfield, Mat ...
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Coppi, Gabriele
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Adler, Alexandre ...
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show more...
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Alonso, David
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Azzoni, Susanna
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Chesmore, Grace ...
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Fabbian, Giulio
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Ganga, Ken
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Gerras, Remingto ...
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Jaffe, Andrew H.
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Johnson, Bradley ...
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Keating, Brian
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Keskitalo, Reijo
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Kisner, Theodore ...
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Krachmalnicoff, ...
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Lungu, Marius
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Matsuda, Frederi ...
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Naess, Sigurd
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Page, Lyman
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Puddu, Roberto
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Puglisi, Giusepp ...
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Simon, Sara M.
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Teply, Grant
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Tsan, Tran
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Wollack, Edward ...
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Wolz, Kevin
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Xu, Zhilei
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show less...
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- NATURAL SCIENCES
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Stockholm University