A High Sensitivity Fourier Transform Spectrometer for Cosmic Microwave Back-ground Observations

DOI
10.1109/TIM.2019.2945745
de Miguel-Hernández, J.; Hoyland, R. J.; M. F. Gomez Reñasco, M. F.; Rubiño-Martín, J .A.; Viera-Curbelo , T. A.
Referencia bibliográfica

Transactions on Instrumentation and Measurement

Fecha de publicación:
10
2019
Número de autores
5
Número de autores del IAC
5
Número de citas referidas
0
Descripción
The QUIJOTE Experiment was developed to study the polarization in the Cosmic Microwave Background (CMB) over the frequency range of 10-50 GHz. Its first instrument, the Multi-Frequency-Instrument (MFI), measures in the range 10-20 GHz which coincides with one of the naturally transparent windows in the atmosphere. The Tenerife Microwave Spectrometer (TMS) has been designed to investigate the spectrum between 10-20 GHz in more detail. The MFI bands are 2 GHz wide whereas the TMS bands will be 250 MHz wide covering the complete 10-20 GHz range with one receiver chain and Fourier spectral filter bank. It is expected that the relative calibration between frequency bands will be better known than the MFI channels and that the higher resolution will provide essential information on narrow band interference and features such as ozone. The TMS will study the atmospheric spectra as well as provide key information on the viability of ground-based absolute spectral measurements. Here the novel Fourier transform spectrometer design is described showing its suitability to wide band measurement and √N advantage over the usual scanning techniques.
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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
El experimento QUIJOTE en el Observatorio del Teide
Experimento QUIJOTE CMB

QUIJOTE es un programa de dos telescopios y su batería de instrumentos, instalados en el Observatorio del Teide, dedicados fundamentalmente a la caracterización de la polarización del Fondo Cósmico de Microondas, en el rango de frecuencias de 10-42 GHz.

José Alberto
Rubiño Martín
En ejecución
Tipo
Con árbitro
Cosmología y Astropartículas (CYA)

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