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arXiv 1608.03025astro-ph.IMastro-ph.CO
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POLARBEAR-2:用于CMB偏振测量的仪器

POLARBEAR-2: an instrument for CMB polarization measurements

Y. Inoue, P. Ade, Y. Akiba, C. Aleman, K. Arnold, C. Baccigalupi, B. Barch, D. Barron, A. Bender, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, A. Cukierman,… 展开作者

Y. Inoue, P. Ade, Y. Akiba, C. Aleman, K. Arnold, C. Baccigalupi, B. Barch, D. Barron, A. Bender, D. Boettger, J. Borrill, S. Chapman, Y. Chinone, A. Cukierman, T. de Haan, M. A. Dobbs, A. Ducout, R. Dunner, T. Elleflot, J. Errard, G. Fabbian, S. Feeney, C. Feng, G. Fuller, A. J. Gilbert, N. Goeckner-Wald, J. Groh, G. Hall, N. Halverson, T. Hamada, M. Hasegawa, K. Hattori, M. Hazumi, C. Hill, W. L. Holzapfel, Y. Hori, L. Howe, F. Irie, G. Jaehnig, A. Jaffe, O. Jeongh, N. Katayama, J. P. Kaufman, K. Kazemzadeh, B. G. Keating, Z. Kermish, R. Keskital, T. Kisner, A. Kusaka, M. Le Jeune, A. T. Lee, D. Leon, E. V. Linder, L. Lowry, F. Matsuda, T. Matsumura, N. Miller, K. Mizukami, J. Montgomery, M. Navaroli, H. Nishino, H. Paar, J. Peloton, D. Poletti, G. Puglisi, C. R. Raum, G. M. Rebeiz, C. L. Reichardt, P. L. Richards, C. Ross, K. M. Rotermund, Y. Segaw, B. D. Sherwin, I. Shirley, P. Siritanasak, N. Stebor, R. Stompor A. Suzuki, O. Tajima, S. Takada, S. Takatori, G. P. Teply, A. Tikhomirol, T. Tomaru, N. Whitehorn, A. Zahn, O. Zahn

摘要:

POLARBEAR-2(PB-2)是一个宇宙微波背景(CMB)极化实验,将位于智利海拔5200米的阿塔卡马高地。它的科学目标是测量起源于原始引力波和弱透镜的CMB偏振信号。PB-2被设计用来测量张量与标量之比r,精确度σ(r)< 0.01,以及中微子质量之和σ(μ mν)< 90 meV。为了实现这些目标,PB-2将采用7588个95 GHz和150 GHz的过渡边缘传感器测辐射热计,这些测辐射热计将在250 mK的基础温度下工作。科学观测将于2017年开始。

英文摘要:

POLARBEAR-2 (PB-2) is a cosmic microwave background (CMB) polarization experiment that will be located in the Atacama highland in Chile at an altitude of 5200 m. Its science goals are to measure the CMB polarization signals originating from both primordial gravitational waves and weak lensing. PB-2 is designed to measure the tensor to scalar ratio, r, with precision σ(r) < 0.01, and the sum of neutrino masses, Σmν, with σ(Σmν) < 90 meV. To achieve these goals, PB-2 will employ 7588 transition-edge sensor bolometers at 95 GHz and 150 GHz, which will be operated at the base temperature of 250 mK. Science observations will begin in 2017.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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