The Simons Observatory: Beam Characterization for the Small Aperture Telescopes

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dc.contributor.authorDachlythra, Nadia
dc.contributor.authorDuivenvoorden, Adriaan J.
dc.contributor.authorGudmundsson, Jon E.
dc.contributor.authorHasselfield, Matthew
dc.contributor.authorCoppi, Gabriele
dc.contributor.authorAdler, Alexandre E.
dc.contributor.authorAlonso, David
dc.contributor.authorAzzoni, Susanna
dc.contributor.authorChesmore, Grace E.
dc.contributor.authorFabbian, Giulio
dc.contributor.authorGanga, Ken
dc.contributor.authorGerras, Remington G.
dc.contributor.authorJaffe, Andrew H.
dc.contributor.authorJohnson, Bradley R.
dc.contributor.authorKeating, Brian
dc.contributor.authorKeskitalo, Reijo
dc.contributor.authorKisner, Theodore S.
dc.contributor.authorKrachmalnicoff, Nicoletta
dc.contributor.authorLungu, Marius
dc.contributor.authorMatsuda, Frederick
dc.contributor.authorNaess, Sigurd
dc.contributor.authorPage, Lyman
dc.contributor.authorPuddu, Roberto
dc.contributor.authorPuglisi, Giuseppe
dc.contributor.authorSimon, Sara M.
dc.contributor.authorTeply, Grant
dc.contributor.authorTsan, Tran
dc.contributor.authorWollack, Edward J.
dc.contributor.authorWolz, Kevin
dc.contributor.authorXu, Zhilei
dc.date.accessioned2025-01-20T17:09:51Z
dc.date.available2025-01-20T17:09:51Z
dc.date.issued2024
dc.description.abstractWe 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 similar to 1.5% error for a multipole range l = 30-700 and an similar to 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
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4357/ad0969
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ad0969
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91070
dc.identifier.wosidWOS:001144957700001
dc.issue.numero1
dc.language.isoen
dc.revistaAstrophysical journal
dc.rightsacceso restringido
dc.titleThe Simons Observatory: Beam Characterization for the Small Aperture Telescopes
dc.typeartículo
dc.volumen961
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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