Abstract
BICEP3 is a 520 mm aperture on-Axis refracting telescope at the South Pole, which observes the polarization of the cosmic microwave background (CMB) at 95 GHz to search for the B-mode signal from inflationary gravitational waves. In addition to this main target, we have developed a low-elevation observation strategy to extend coverage of the Southern sky at the South Pole, where BICEP3 can quickly achieve degree-scale E-mode measurements over a large area. An interesting E-mode measurement is probing a potential polarization anomaly around the CMB Cold Spot. During the austral summer seasons of 2018-19 and 2019-20, BICEP3 observed the sky with a flat mirror to redirect the beams to various low elevation ranges. The preliminary data analysis shows degree-scale E-modes measured with high signal-To-noise ratio.
Original language | English (US) |
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Title of host publication | Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X |
Editors | Jonas Zmuidzinas, Jian-Rong Gao |
Publisher | SPIE |
ISBN (Electronic) | 9781510636934 |
DOIs | |
State | Published - 2020 |
Event | Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X 2020 - Virtual, Online, United States Duration: Dec 14 2020 → Dec 22 2020 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 11453 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X 2020 |
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Country/Territory | United States |
City | Virtual, Online |
Period | 12/14/20 → 12/22/20 |
Bibliographical note
Publisher Copyright:© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
Keywords
- BICEP3
- Cold Spot
- Cosmic Microwave Background
- Gravitational Waves
- Ination
- Polarization