Polaris: A Telescope to Measure the Polarization of Low Frequency Galactic Foregrounds of the Cosmic Microwave Background Radiation- [electronic resource]
Polaris: A Telescope to Measure the Polarization of Low Frequency Galactic Foregrounds of the Cosmic Microwave Background Radiation- [electronic resource]
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214101226
- ISBN
- 9798380158473
- DDC
- 530
- 저자명
- Kaplan, Ari K.
- 서명/저자
- Polaris: A Telescope to Measure the Polarization of Low Frequency Galactic Foregrounds of the Cosmic Microwave Background Radiation - [electronic resource]
- 발행사항
- [S.l.]: : University of California, Santa Barbara., 2023
- 발행사항
- Ann Arbor : : ProQuest Dissertations & Theses,, 2023
- 형태사항
- 1 online resource(188 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
- 주기사항
- Advisor: Lubin, Philip.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Santa Barbara, 2023.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약Detection of the extremely faint B-mode polarization pattern in the Cosmic Microwave Background (CMB), imprinted from a stochastic background of gravitational waves left over from the proposed inflationary era in the early universe, has become a leading goal of the CMB community. Essential to this question is a more sophisticated understanding of the obscuring galactic foreground emission. Recent Planck results have shown that higher frequency measurements (above 100 GHz) are more contaminated by complicated thermal dust emission than anticipated. Meanwhile, lower frequency measurements where synchrotron dominates is less well measured and is critical to effective foreground removal techniques. Polaris, described in this dissertation, measures the polarized synchrotron component at 10 GHz. Funding was supplied by the Niels Bohr Institute and Villum foundation to be the first cosmological or astrophysical experiment to deploy to Summit Station, Greenland. Polaris was successfully operated at Summit Station for seven weeks starting in June 2018, and shipped back to California in August 2018, where the remainder of telescope maintenance, characterization, and observations were conducted. This thesis describes the results of these measurements, their implications, and the needed future improvements for more comprehensive surveys.
- 일반주제명
- Physics.
- 일반주제명
- Astrophysics.
- 일반주제명
- Planetology.
- 키워드
- Cosmology
- 기타저자
- University of California, Santa Barbara Physics
- 기본자료저록
- Dissertations Abstracts International. 85-02B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
