The LSPE-Strip beams

Bibcode
2022JInst..17P1028R
DOI
10.1088/1748-0221/17/01/P01028
Realini, S.; Franceschet, C.; Villa, F.; Sandri, M.; Addamo, G.; Alonso-Arias, P.; Bersanelli, M.; Cuttaia, F.; Jones, M.; Maris, M.; Mena, F. P.; Mennella, A.; Molina, R.; Morgante, G.; Tomasi, M.; Zannoni, M.
Referencia bibliográfica

Journal of Instrumentation

Fecha de publicación:
1
2022
Número de autores
16
Número de autores del IAC
1
Número de citas
1
Número de citas referidas
0
Descripción
In this paper we describe the design and characterization of the optical system of LSPE/Strip, a coherent polarimeter array that will observe the microwave sky from the Teide Observatory in Tenerife in two frequency bands centred at 43 and 95 GHz through a dual-reflector crossed-Dragone telescope of 1.5 m aperture. In general, optical systems composed by a telescope-feed array assembly have non-idealities that might limit their ability to perform high-precision measurements. It is thus necessary to understand, characterize and properly control these systematic effects. For this reason, we performed electromagnetic simulations to characterize angular resolution, sidelobes, main beam symmetry, polarization purity and feedhorns orientation. The results presented in this paper will be an essential input for further optical studies and for the LSPE/Strip data analysis. Ultimately, they will be used to assess the impact of optical systematic effects on the scientific results.
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Mapa de todo el cielo mostrando la distribución espacial de las anisotropias primarias del Fondo Cósmico de Microondas (generadas sólo 380,000 años después del Big Bang) extraído de las observaciones del satélite Planck
Anisotropía del Fondo Cósmico de Microondas

El objetivo general de este proyecto es determinar y estudiar las variaciones espaciales y espectrales en la temperatura del Fondo Cósmico de Microondas y en su Polarización en un amplio rango de escalas angulares que van desde pocos minutos de arco hasta varios grados. Las fluctuaciones primordiales en la densidad de materia, que dieron origen a

Rafael
Rebolo López
En ejecución
Tipo
Con árbitro
Cosmología y Astropartículas (CYA)

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