SPOrt：测量大尺度宇宙微波背景极化的实验
天体物理学
2009-11-07 v1
摘要
SPOrt (Sky Polarization Observatory) 是一次将在国际空间站早期利用阶段期间飞行的空间实验，旨在测量全息微波极化辐射， FWHM 为 7 度，工作频率范围为 22-90 GHz。Galactic 极化辐射可在低频率观测到，而在 90 GHz 处可观测到宇宙微波背景 (CMB) 的极化，此时污染物预计影响较小。极低水平的 CMB 极化信号 (< 1 μK) 要求仪器具具有内在稳定性。SPOrt 仪器专为 CMB 极化测量设计，整体设计均针对最小化仪器极化效应而优化。本稿介绍了基于相关技术的接收机体系结构，展示其内在稳定性，并阐述了为检测如此低水平信号而进行的定制硬件开发。
引用
@article{arxiv.astro-ph/0212067,
title = {SPOrt: an Experiment Aimed at Measuring the Large Scale Cosmic Microwave Background Polarization},
author = {E. Carretti and S. Cortiglioni and G. Bernardi and S. Cecchini and C. Macculi and C. Sbarra and J. Monari and A. Orfei and M. Poloni and S. Poppi and G. Boella and S. Bonometto and M. Gervasi and G. Sironi and M. Zannoni and M. Tucci and M. Baralis and O. A. Peverini and R. Tascone and G. Virone and R. Fabbri and L. Nicastro and K. -W. Ng and V. A. Razin and E. N. Vinyajkin and M. V. Sazhin and I. A. Strukov},
journal= {arXiv preprint arXiv:astro-ph/0212067},
year = {2009}
}
备注
9 pages, 5 figures, conference proceeding, to appear in "Polarimetry in Astronomy", SPIE Symposium on 'Astronomical Telescopes and Instrumentation', Waikoloa, August 22-28 2002