论文标题

大规模极化探索器的进度报告

Progress report on the Large Scale Polarization Explorer

论文作者

Lamagna, L., Addamo, G., Ade, P. A. R., Baccigalupi, C., Baldini, A. M., Battaglia, P. M., Battistelli, E., Baù, A., Bersanelli, M., Biasotti, M., Boragno, C., Boscaleri, A., Caccianiga, B., Caprioli, S., Cavaliere, F., Cei, F., Cleary, K. A., Columbro, F., Coppi, G., Coppolecchia, A., Corsini, D., Cuttaia, F., D'Alessandro, G., de Bernardis, P., De Gasperis, G., De Petris, M., Del Torto, F., Fafone, V., Farooqui, Z., Farsian, F., Fontanelli, F., Franceschet, C., Gaier, T. C., Gatti, F., Genova-Santos, R., Gervasi, M., Ghigna, T., Grassi, M., Grosso, D., Gualtieri, R., Incardona, F., Jones, M., Kangaslahti, P., Krachmalnicoff, N., Mainini, R., Maino, D., Mandelli, S., Maris, M., Masi, S., Matarrese, S., May, A., Mena, P., Mennella, A., Molina, R., Molinari, D., Morgante, G., Nati, F., Natoli, P., Pagano, L., Paiella, A., Paonessa, F., Passerini, A., Perez-de-Taoro, M., Peverini, O. A., Pezzotta, F., Piacentini, F., Piccirillo, L., Pisano, G., Polastri, L., Polenta, G., Poletti, D., Presta, G., Realini, S., Reyes, N., Rocchi, A., Rubiño-Martin, J. A., Sandri, M., Sartor, S., Schillaci, A., Signorelli, G., Siri, B., Soria, M., Spinella, F., Tapia, V., Tartari, A., Taylor, A., Terenzi, L., Tomasi, M., Tommasi, E., Tucker, C., Vaccaro, D., Vigano, D. M., Villa, F., Virone, G., Vittorio, N., Volpe, A., Watkins, B., Zacchei, A., Zannoni, M.

论文摘要

大规模极化探索器(LSPE)是一个宇宙学计划,用于测量宇宙微波背景极化中的大型卷发样特征(B模型)。它的目标是限制在物质辐射解耦时通过宇宙传播的通货膨胀重力波的背景。 LSPE的两种仪器旨在通过覆盖北部微波炉的大部分地区来协同运行。 LSPE/带是计划从特内里费岛的Teide天文台操作的一系列接收器,用于控制和表征银河系的低频极化信号; LSPE/SWIPE是基于330个大吞吐量多模型探测器的气球传播侧载偏振仪,旨在测量150 GHz时的CMB极化,并监测200 GHz以上的银河系尘埃发射。组合性能和预期的系统缓解水平将使LSPE将原始B模型限制为张量/标量比$ 10^{ - 2} $。在这里,我们在这里报告了剥离预委托阶段的状态以及在接收器集成之前的滑动有效负载关键子系统(即低温极化调制单元和多模型TES像素)的表征。

The Large Scale Polarization Explorer (LSPE) is a cosmology program for the measurement of large scale curl-like features (B-modes) in the polarization of the Cosmic Microwave Background. Its goal is to constrain the background of inflationary gravity waves traveling through the universe at the time of matter-radiation decoupling. The two instruments of LSPE are meant to synergically operate by covering a large portion of the northern microwave sky. LSPE/STRIP is a coherent array of receivers planned to be operated from the Teide Observatory in Tenerife, for the control and characterization of the low-frequency polarized signals of galactic origin; LSPE/SWIPE is a balloon-borne bolometric polarimeter based on 330 large throughput multi-moded detectors, designed to measure the CMB polarization at 150 GHz and to monitor the polarized emission by galactic dust above 200 GHz. The combined performance and the expected level of systematics mitigation will allow LSPE to constrain primordial B-modes down to a tensor/scalar ratio of $10^{-2}$. We here report the status of the STRIP pre-commissioning phase and the progress in the characterization of the key subsystems of the SWIPE payload (namely the cryogenic polarization modulation unit and the multi-moded TES pixels) prior to receiver integration.

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