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Astronomical and Resonant Circuit Based Searches for Ultralight Dark Matter
Astronomical and Resonant Circuit Based Searches for Ultralight Dark Matter
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103543
- ISBN
- 9798288866302
- DDC
- 530
- 저자명
- Keller, Aya.
- 서명/저자
- Astronomical and Resonant Circuit Based Searches for Ultralight Dark Matter
- 발행사항
- [Sl] : University of California, Berkeley, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 122 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: van Bibber, Karl.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2025.
- 초록/해제
- 요약While the overwhelming evidence for the existence of dark matter continues to build, progress towards its identification remains limited. This thesis discusses two complementary methods of searching for ultralight dark matter, specifically, astronomical and resonant circuit based searches.In the first part, we explore a model-independent search for possible decay or annihilation of dark matter to a quasimonochromatic radio line using data from the Green Bank Radio Telescope, relying on as few assumptions as possible. More specifically, the search selects for a line that exhibits a Doppler shift with position according to the solar motion through a static halo and similarly varies in intensity with position with respect to the galactic center. Following a description of the full analysis pipeline as well as optimization of selected components of the analysis, we present exclusion limits of decay and annihilation in the L and S bands.In the second part, we discuss a direct lumped-element resonant search for axions, DMRadio- 50L. As a novel experiment meant to be an innovation platform as well as a sensitive axion detector, DMRadio-50L requires advanced engineering and unique solutions in many aspects of experimental design. Specifically, we examine the design, construction, and characterization of the cryogenic system housing the detector. Although not yet fully built, the cryogenic system has already undergone multiple rounds of improvement, which allows us to project success in reaching temperatures below 50 mK for the base temperature stage of the experiment.
- 일반주제명
- Physics
- 일반주제명
- Astrophysics
- 일반주제명
- Engineering
- 키워드
- Dark matter
- 키워드
- DMRadio-50L
- 기타저자
- University of California, Berkeley Applied Science & Technology
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202103543
■006m o d
■007cr#unu||||||||
■020 ▼a9798288866302
■035 ▼a(MiAaPQ)AAI32041072
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aKeller, Aya.
■24510▼aAstronomical and Resonant Circuit Based Searches for Ultralight Dark Matter
■260 ▼a[Sl]▼bUniversity of California, Berkeley▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a122 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: van Bibber, Karl.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2025.
■520 ▼aWhile the overwhelming evidence for the existence of dark matter continues to build, progress towards its identification remains limited. This thesis discusses two complementary methods of searching for ultralight dark matter, specifically, astronomical and resonant circuit based searches.In the first part, we explore a model-independent search for possible decay or annihilation of dark matter to a quasimonochromatic radio line using data from the Green Bank Radio Telescope, relying on as few assumptions as possible. More specifically, the search selects for a line that exhibits a Doppler shift with position according to the solar motion through a static halo and similarly varies in intensity with position with respect to the galactic center. Following a description of the full analysis pipeline as well as optimization of selected components of the analysis, we present exclusion limits of decay and annihilation in the L and S bands.In the second part, we discuss a direct lumped-element resonant search for axions, DMRadio- 50L. As a novel experiment meant to be an innovation platform as well as a sensitive axion detector, DMRadio-50L requires advanced engineering and unique solutions in many aspects of experimental design. Specifically, we examine the design, construction, and characterization of the cryogenic system housing the detector. Although not yet fully built, the cryogenic system has already undergone multiple rounds of improvement, which allows us to project success in reaching temperatures below 50 mK for the base temperature stage of the experiment.
■590 ▼aSchool code: 0028.
■650 4▼aPhysics
■650 4▼aAstrophysics
■650 4▼aEngineering
■653 ▼aDark matter
■653 ▼aDMRadio-50L
■653 ▼aResonant circuits
■690 ▼a0605
■690 ▼a0596
■690 ▼a0537
■71020▼aUniversity of California, Berkeley▼bApplied Science & Technology.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357665▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
