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DOI | 10.1117/12.2233125 |
The Cosmology Large Angular Scale Surveyor | |
Harrington, Kathleen1; Marriage, Tobias1; Ali, Aamir1; Appel, John W.1; Bennett, Charles L.1; Boone, Fletcher5; Brewer, Michael1; Chan, Manwei1; Chuss, David T.4; Colazo, Felipe3; Dahal, Sumit1; Denis, Kevin3; Dunner, Rolando6,7; Eimer, Joseph1; Essinger-Hileman, Thomas1; Fluxa, Pedro6,7; Halpern, Mark2; Hilton, Gene8; Hinshaw, Gary F.2; Hubmayr, Johannes8; Iuliano, Jeffery1; Karakla, John1; McMahon, Jeff5; Miller, Nathan T.1,3; Moseley, Samuel H.3; Palma, Gonzalo10; Parker, Lucas1; Petroff, Matthew1; Pradenas, Bastian10; Rostem, Karwan1,3; Sagliocca, Marco4; Valle, Deniz1; Watts, Duncan1; Wollack, Edward3; Xu, Zhilei1; Zeng, Lingzhen9 | |
通讯作者 | Harrington, Kathleen |
会议名称 | Conference on Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII |
会议日期 | JUN 28-JUL 01, 2016 |
会议地点 | Edinburgh, SCOTLAND |
英文摘要 | The Cosmology Large Angular Scale Surveyor (CLASS) is a four telescope array designed to characterize relic primordial gravitational waves from inflation and the optical depth to reionization through a measurement of the polarized cosmic microwave background (CMB) on the largest angular scales. The frequencies of the four CLASS telescopes, one at 38 GHz, two at 93 GHz, and one dichroic system at 145/217 GHz, are chosen to avoid spectral regions of high atmospheric emission and span the minimum of the polarized Galactic foregrounds: synchrotron emission at lower frequencies and dust emission at higher frequencies. Low-noise transition edge sensor detectors and a rapid front-end polarization modulator provide a unique combination of high sensitivity, stability, and control of systematics. The CLASS site, at 5200 m in the Chilean Atacama desert, allows for daily mapping of up to 70% of the sky and enables the characterization of CMB polarization at the largest angular scales. Using this combination of a broad frequency range, large sky coverage, control over systematics, and high sensitivity, CLASS will observe the reionization and recombination peaks of the CMB E- and B-mode power spectra. CLASS will make a cosmic variance limited measurement of the optical depth to reionization and will measure or place upper limits on the tensor-to-scalar ratio, r, down to a level of 0.01 (95% C.L.). |
来源出版物 | MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND INSTRUMENTATION FOR ASTRONOMY VIII |
ISSN | 0277-786X |
出版年 | 2016 |
卷号 | 9914 |
ISBN | 978-1-5106-0208-3 |
EISBN | 978-1-5106-0207-6 |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | USA;Canada;Chile |
收录类别 | CPCI-S |
WOS记录号 | WOS:000385793800038 |
WOS关键词 | PROBE WMAP OBSERVATIONS ; B-MODE POLARIZATION ; MICROWAVE BACKGROUND POLARIMETRY ; INFLATIONARY UNIVERSE ; FLATNESS ; HORIZON |
WOS类目 | Astronomy & Astrophysics ; Optics |
WOS研究方向 | Astronomy & Astrophysics ; Optics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/305657 |
作者单位 | 1.Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA; 2.Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada; 3.NASA, Goddard Space Flight Ctr, Code 660, Greenbelt, MD 20771 USA; 4.Villanova Univ, Dept Phys, Villanova, PA 19085 USA; 5.Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA; 6.Pontificia Univ Catolica Chile, Inst Astrofis, Fac Fis, Ave Vicuna Mackenna 4860, Santiago 7820436, Chile; 7.Pontificia Univ Catolica Chile, Ctr Astroingn, Fac Fis, Ave Vicuna Mackenna 4860, Santiago 7820436, Chile; 8.Natl Inst Stand & Technol, 325 Broadway, Boulder, CO 80305 USA; 9.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA; 10.Univ Chile, Dept Phys, FCFM, Blanco Encalada 2008, Santiago, Chile |
推荐引用方式 GB/T 7714 | Harrington, Kathleen,Marriage, Tobias,Ali, Aamir,et al. The Cosmology Large Angular Scale Surveyor[C]:SPIE-INT SOC OPTICAL ENGINEERING,2016. |
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